diff --git a/.classpath b/.classpath
new file mode 100644
index 0000000..788fae4
--- /dev/null
+++ b/.classpath
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="src" path="Project/src"/>
+	<classpathentry kind="lib" path="Project/derbyclient-10.2.2.0.jar"/>
+	<classpathentry kind="output" path="Project/build/classes"/>
+</classpath>
diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..26d3352
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
diff --git a/.idea/azure/azureSettings.xml b/.idea/azure/azureSettings.xml
new file mode 100644
index 0000000..448ab9e
--- /dev/null
+++ b/.idea/azure/azureSettings.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AzureSettings">
+    <option name="appInsights" value="rO0ABXVyAEtbTGNvbS5taWNyb3NvZnQuYXBwbGljYXRpb25pbnNpZ2h0cy5wcmVmZXJlbmNlLkFwcGxpY2F0aW9uSW5zaWdodHNSZXNvdXJjZTvCzxEP0C2HbAIAAHhwAAAAAA==" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/libraries/derbyclient_10_2_2_0.xml b/.idea/libraries/derbyclient_10_2_2_0.xml
new file mode 100644
index 0000000..6066eef
--- /dev/null
+++ b/.idea/libraries/derbyclient_10_2_2_0.xml
@@ -0,0 +1,9 @@
+<component name="libraryTable">
+  <library name="derbyclient-10.2.2.0">
+    <CLASSES>
+      <root url="jar://$PROJECT_DIR$/Project/derbyclient-10.2.2.0.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..639900d
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..2067e6d
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/Library-Management-System-JAVA-master.iml" filepath="$PROJECT_DIR$/Library-Management-System-JAVA-master.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.project b/.project
new file mode 100644
index 0000000..f9b2cbc
--- /dev/null
+++ b/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Library-Management-System-JAVA-master</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/Library-Management-System-JAVA-master.iml b/Library-Management-System-JAVA-master.iml
new file mode 100644
index 0000000..dfa1437
--- /dev/null
+++ b/Library-Management-System-JAVA-master.iml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/Project/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/Project/build/classes/LMS/Book.class b/Project/build/classes/LMS/Book.class
index b751913..4f6e9ca 100644
Binary files a/Project/build/classes/LMS/Book.class and b/Project/build/classes/LMS/Book.class differ
diff --git a/Project/build/classes/LMS/Borrower.class b/Project/build/classes/LMS/Borrower.class
index 0a5317d..3606992 100644
Binary files a/Project/build/classes/LMS/Borrower.class and b/Project/build/classes/LMS/Borrower.class differ
diff --git a/Project/build/classes/LMS/Clerk.class b/Project/build/classes/LMS/Clerk.class
index 2f70aba..d100651 100644
Binary files a/Project/build/classes/LMS/Clerk.class and b/Project/build/classes/LMS/Clerk.class differ
diff --git a/Project/build/classes/LMS/HoldRequest.class b/Project/build/classes/LMS/HoldRequest.class
index b91a735..4d835c6 100644
Binary files a/Project/build/classes/LMS/HoldRequest.class and b/Project/build/classes/LMS/HoldRequest.class differ
diff --git a/Project/build/classes/LMS/HoldRequestActions.class b/Project/build/classes/LMS/HoldRequestActions.class
new file mode 100644
index 0000000..9d30430
Binary files /dev/null and b/Project/build/classes/LMS/HoldRequestActions.class differ
diff --git a/Project/build/classes/LMS/HoldRequestOperations.class b/Project/build/classes/LMS/HoldRequestOperations.class
new file mode 100644
index 0000000..662fedc
Binary files /dev/null and b/Project/build/classes/LMS/HoldRequestOperations.class differ
diff --git a/Project/build/classes/LMS/Librarian.class b/Project/build/classes/LMS/Librarian.class
index 5a92aa6..96dc6a2 100644
Binary files a/Project/build/classes/LMS/Librarian.class and b/Project/build/classes/LMS/Librarian.class differ
diff --git a/Project/build/classes/LMS/Library.class b/Project/build/classes/LMS/Library.class
index 35134a3..a38f2dc 100644
Binary files a/Project/build/classes/LMS/Library.class and b/Project/build/classes/LMS/Library.class differ
diff --git a/Project/build/classes/LMS/Loan.class b/Project/build/classes/LMS/Loan.class
index 965edfa..8031081 100644
Binary files a/Project/build/classes/LMS/Loan.class and b/Project/build/classes/LMS/Loan.class differ
diff --git a/Project/build/classes/LMS/Main.class b/Project/build/classes/LMS/Main.class
index 7d97511..06b822f 100644
Binary files a/Project/build/classes/LMS/Main.class and b/Project/build/classes/LMS/Main.class differ
diff --git a/Project/build/classes/LMS/Person.class b/Project/build/classes/LMS/Person.class
index ca03628..f0e7bd4 100644
Binary files a/Project/build/classes/LMS/Person.class and b/Project/build/classes/LMS/Person.class differ
diff --git a/Project/build/classes/LMS/Staff.class b/Project/build/classes/LMS/Staff.class
index f8cb518..da6e22e 100644
Binary files a/Project/build/classes/LMS/Staff.class and b/Project/build/classes/LMS/Staff.class differ
diff --git a/Project/nbproject/build-impl.xml b/Project/nbproject/build-impl.xml
index eb3201b..0dca046 100644
--- a/Project/nbproject/build-impl.xml
+++ b/Project/nbproject/build-impl.xml
@@ -19,7 +19,7 @@ is divided into following sections:
   - cleanup
 
         -->
-<project xmlns:j2seproject1="http://www.netbeans.org/ns/j2se-project/1" xmlns:j2seproject3="http://www.netbeans.org/ns/j2se-project/3" xmlns:jaxrpc="http://www.netbeans.org/ns/j2se-project/jax-rpc" basedir=".." default="default" name="Library_Management_System-impl">
+<project xmlns:if="ant:if" xmlns:j2seproject1="http://www.netbeans.org/ns/j2se-project/1" xmlns:j2seproject3="http://www.netbeans.org/ns/j2se-project/3" xmlns:jaxrpc="http://www.netbeans.org/ns/j2se-project/jax-rpc" xmlns:unless="ant:unless" basedir=".." default="default" name="Library_Management_System-impl">
     <fail message="Please build using Ant 1.8.0 or higher.">
         <condition>
             <not>
@@ -46,14 +46,79 @@ is divided into following sections:
         <property file="${user.properties.file}"/>
         <!-- The two properties below are usually overridden -->
         <!-- by the active platform. Just a fallback. -->
-        <property name="default.javac.source" value="1.6"/>
-        <property name="default.javac.target" value="1.6"/>
+        <property name="default.javac.source" value="1.8"/>
+        <property name="default.javac.target" value="1.8"/>
     </target>
     <target depends="-pre-init,-init-private,-init-user" name="-init-project">
         <property file="nbproject/configs/${config}.properties"/>
         <property file="nbproject/project.properties"/>
     </target>
-    <target depends="-pre-init,-init-private,-init-user,-init-project,-init-macrodef-property" name="-do-init">
+    <target name="-init-modules-supported">
+        <condition property="modules.supported.internal" value="true">
+            <not>
+                <matches pattern="1\.[0-8](\..*)?" string="${javac.source}"/>
+            </not>
+        </condition>
+    </target>
+    <target depends="-init-modules-supported" if="modules.supported.internal" name="-init-macrodef-modulename">
+        <macrodef name="modulename" uri="http://www.netbeans.org/ns/j2se-project/3">
+            <attribute name="property"/>
+            <attribute name="sourcepath"/>
+            <sequential>
+                <loadresource property="@{property}" quiet="true">
+                    <javaresource classpath="@{sourcepath}" name="module-info.java" parentFirst="false"/>
+                    <filterchain>
+                        <stripjavacomments/>
+                        <linecontainsregexp>
+                            <regexp pattern="module .* \{"/>
+                        </linecontainsregexp>
+                        <tokenfilter>
+                            <linetokenizer/>
+                            <replaceregex flags="s" pattern="(\s*module\s+)(\S*)(\s*\{.*)" replace="\2"/>
+                        </tokenfilter>
+                        <striplinebreaks/>
+                    </filterchain>
+                </loadresource>
+            </sequential>
+        </macrodef>
+    </target>
+    <target depends="-init-modules-supported,-init-macrodef-modulename" if="modules.supported.internal" name="-init-source-module-properties">
+        <fail message="Java 9 support requires Ant 1.10.0 or higher.">
+            <condition>
+                <not>
+                    <antversion atleast="1.10.0"/>
+                </not>
+            </condition>
+        </fail>
+        <j2seproject3:modulename property="module.name" sourcepath="${src.dir}"/>
+        <condition property="named.module.internal">
+            <and>
+                <isset property="module.name"/>
+                <length length="0" string="${module.name}" when="greater"/>
+            </and>
+        </condition>
+        <condition property="unnamed.module.internal">
+            <not>
+                <isset property="named.module.internal"/>
+            </not>
+        </condition>
+        <property name="javac.modulepath" value=""/>
+        <property name="run.modulepath" value="${javac.modulepath}"/>
+        <property name="module.build.classes.dir" value="${build.classes.dir}"/>
+        <property name="debug.modulepath" value="${run.modulepath}"/>
+        <property name="javac.upgrademodulepath" value=""/>
+        <property name="run.upgrademodulepath" value="${javac.upgrademodulepath}"/>
+        <condition else="" property="javac.systemmodulepath.cmd.line.arg" value="--system '${javac.systemmodulepath}'">
+            <and>
+                <isset property="javac.systemmodulepath"/>
+                <length length="0" string="${javac.systemmodulepath}" when="greater"/>
+            </and>
+        </condition>
+        <property name="dist.jlink.dir" value="${dist.dir}/jlink"/>
+        <property name="dist.jlink.output" value="${dist.jlink.dir}/${application.title}"/>
+        <property name="module.name" value=""/>
+    </target>
+    <target depends="-pre-init,-init-private,-init-user,-init-project,-init-macrodef-property,-init-modules-supported" name="-do-init">
         <property name="platform.java" value="${java.home}/bin/java"/>
         <available file="${manifest.file}" property="manifest.available"/>
         <condition property="splashscreen.available">
@@ -76,7 +141,9 @@ is divided into following sections:
             <and>
                 <isset property="javac.profile"/>
                 <length length="0" string="${javac.profile}" when="greater"/>
-                <matches pattern="((1\.[89])|9)(\..*)?" string="${javac.source}"/>
+                <not>
+                    <matches pattern="1\.[0-7](\..*)?" string="${javac.source}"/>
+                </not>
             </and>
         </condition>
         <condition property="do.archive">
@@ -87,15 +154,6 @@ is divided into following sections:
                 <istrue value="${not.archive.disabled}"/>
             </or>
         </condition>
-        <condition property="do.mkdist">
-            <and>
-                <isset property="do.archive"/>
-                <isset property="libs.CopyLibs.classpath"/>
-                <not>
-                    <istrue value="${mkdist.disabled}"/>
-                </not>
-            </and>
-        </condition>
         <condition property="do.archive+manifest.available">
             <and>
                 <isset property="manifest.available"/>
@@ -250,11 +308,80 @@ is divided into following sections:
             </sequential>
         </macrodef>
     </target>
-    <target depends="-init-ap-cmdline-properties" if="ap.supported.internal" name="-init-macrodef-javac-with-processors">
+    <target depends="-init-ap-cmdline-properties,-init-source-module-properties" if="modules.supported.internal" name="-init-macrodef-javac-with-module">
+        <macrodef name="javac" uri="http://www.netbeans.org/ns/j2se-project/3">
+            <attribute default="${src.dir}" name="srcdir"/>
+            <attribute default="${build.classes.dir}" name="destdir"/>
+            <attribute default="${javac.classpath}" name="classpath"/>
+            <attribute default="${javac.modulepath}" name="modulepath"/>
+            <attribute default="${javac.upgrademodulepath}" name="upgrademodulepath"/>
+            <attribute default="${javac.processorpath}" name="processorpath"/>
+            <attribute default="${javac.processormodulepath}" name="processormodulepath"/>
+            <attribute default="${build.generated.sources.dir}/ap-source-output" name="apgeneratedsrcdir"/>
+            <attribute default="${includes}" name="includes"/>
+            <attribute default="${excludes}" name="excludes"/>
+            <attribute default="${javac.debug}" name="debug"/>
+            <attribute default="${empty.dir}" name="sourcepath" unless:set="named.module.internal"/>
+            <attribute default="${src.dir}" if:set="named.module.internal" name="sourcepath"/>
+            <attribute default="${empty.dir}" name="gensrcdir"/>
+            <element name="customize" optional="true"/>
+            <sequential>
+                <condition property="warn.excludes.internal">
+                    <and>
+                        <isset property="named.module.internal"/>
+                        <length length="0" string="@{excludes}" trim="true" when="greater"/>
+                    </and>
+                </condition>
+                <echo if:set="warn.excludes.internal" level="warning" message="The javac excludes are not supported in the JDK 9 Named Module."/>
+                <property location="${build.dir}/empty" name="empty.dir"/>
+                <mkdir dir="${empty.dir}"/>
+                <mkdir dir="@{apgeneratedsrcdir}"/>
+                <condition property="processormodulepath.set">
+                    <resourcecount count="0" when="greater">
+                        <path>
+                            <pathelement path="@{processormodulepath}"/>
+                        </path>
+                    </resourcecount>
+                </condition>
+                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" fork="${javac.fork}" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
+                    <src>
+                        <dirset dir="@{gensrcdir}" erroronmissingdir="false">
+                            <include name="*"/>
+                        </dirset>
+                    </src>
+                    <classpath>
+                        <path path="@{classpath}"/>
+                    </classpath>
+                    <modulepath>
+                        <path path="@{modulepath}"/>
+                    </modulepath>
+                    <upgrademodulepath>
+                        <path path="@{upgrademodulepath}"/>
+                    </upgrademodulepath>
+                    <compilerarg line="${javac.systemmodulepath.cmd.line.arg}"/>
+                    <compilerarg line="${javac.profile.cmd.line.arg}"/>
+                    <compilerarg line="${javac.compilerargs}"/>
+                    <compilerarg if:set="processormodulepath.set" value="--processor-module-path"/>
+                    <compilerarg if:set="processormodulepath.set" path="@{processormodulepath}"/>
+                    <compilerarg unless:set="processormodulepath.set" value="-processorpath"/>
+                    <compilerarg path="@{processorpath}:${empty.dir}" unless:set="processormodulepath.set"/>
+                    <compilerarg line="${ap.processors.internal}"/>
+                    <compilerarg line="${annotation.processing.processor.options}"/>
+                    <compilerarg value="-s"/>
+                    <compilerarg path="@{apgeneratedsrcdir}"/>
+                    <compilerarg line="${ap.proc.none.internal}"/>
+                    <customize/>
+                </javac>
+            </sequential>
+        </macrodef>
+    </target>
+    <target depends="-init-ap-cmdline-properties,-init-source-module-properties" if="ap.supported.internal" name="-init-macrodef-javac-with-processors" unless="modules.supported.internal">
         <macrodef name="javac" uri="http://www.netbeans.org/ns/j2se-project/3">
             <attribute default="${src.dir}" name="srcdir"/>
             <attribute default="${build.classes.dir}" name="destdir"/>
             <attribute default="${javac.classpath}" name="classpath"/>
+            <attribute default="${javac.modulepath}" name="modulepath"/>
+            <attribute default="${javac.upgrademodulepath}" name="upgrademodulepath"/>
             <attribute default="${javac.processorpath}" name="processorpath"/>
             <attribute default="${build.generated.sources.dir}/ap-source-output" name="apgeneratedsrcdir"/>
             <attribute default="${includes}" name="includes"/>
@@ -291,11 +418,13 @@ is divided into following sections:
             </sequential>
         </macrodef>
     </target>
-    <target depends="-init-ap-cmdline-properties" name="-init-macrodef-javac-without-processors" unless="ap.supported.internal">
+    <target depends="-init-ap-cmdline-properties,-init-source-module-properties" name="-init-macrodef-javac-without-processors" unless="ap.supported.internal">
         <macrodef name="javac" uri="http://www.netbeans.org/ns/j2se-project/3">
             <attribute default="${src.dir}" name="srcdir"/>
             <attribute default="${build.classes.dir}" name="destdir"/>
             <attribute default="${javac.classpath}" name="classpath"/>
+            <attribute default="${javac.modulepath}" name="modulepath"/>
+            <attribute default="${javac.upgrademodulepath}" name="upgrademodulepath"/>
             <attribute default="${javac.processorpath}" name="processorpath"/>
             <attribute default="${build.generated.sources.dir}/ap-source-output" name="apgeneratedsrcdir"/>
             <attribute default="${includes}" name="includes"/>
@@ -324,7 +453,7 @@ is divided into following sections:
             </sequential>
         </macrodef>
     </target>
-    <target depends="-init-macrodef-javac-with-processors,-init-macrodef-javac-without-processors" name="-init-macrodef-javac">
+    <target depends="-init-macrodef-javac-with-module,-init-macrodef-javac-with-processors,-init-macrodef-javac-without-processors" name="-init-macrodef-javac">
         <macrodef name="depend" uri="http://www.netbeans.org/ns/j2se-project/3">
             <attribute default="${src.dir}" name="srcdir"/>
             <attribute default="${build.classes.dir}" name="destdir"/>
@@ -379,59 +508,99 @@ is divided into following sections:
         <property name="test.binarytestincludes" value=""/>
         <property name="test.binaryexcludes" value=""/>
     </target>
-    <target if="${nb.junit.single}" name="-init-macrodef-junit-single" unless="${nb.junit.batch}">
-        <macrodef name="junit" uri="http://www.netbeans.org/ns/j2se-project/3">
+    <target depends="-init-modules-supported" if="modules.supported.internal" name="-init-macrodef-junit-prototype-with-module">
+        <macrodef name="junit-prototype" uri="http://www.netbeans.org/ns/j2se-project/3">
             <attribute default="${includes}" name="includes"/>
             <attribute default="${excludes}" name="excludes"/>
-            <attribute default="**" name="testincludes"/>
-            <attribute default="" name="testmethods"/>
-            <element name="customize" optional="true"/>
+            <element name="customizePrototype" optional="true"/>
             <sequential>
                 <property name="junit.forkmode" value="perTest"/>
                 <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" showoutput="true" tempdir="${build.dir}">
-                    <test methods="@{testmethods}" name="@{testincludes}" todir="${build.test.results.dir}"/>
                     <syspropertyset>
                         <propertyref prefix="test-sys-prop."/>
                         <mapper from="test-sys-prop.*" to="*" type="glob"/>
                     </syspropertyset>
+                    <classpath>
+                        <path path="${run.test.classpath}"/>
+                    </classpath>
+                    <modulepath>
+                        <path path="${run.test.modulepath}"/>
+                    </modulepath>
                     <formatter type="brief" usefile="false"/>
                     <formatter type="xml"/>
+                    <jvmarg line="${endorsed.classpath.cmd.line.arg}"/>
                     <jvmarg value="-ea"/>
-                    <customize/>
+                    <jvmarg line="${run.test.jvmargs}"/>
+                    <customizePrototype/>
                 </junit>
             </sequential>
         </macrodef>
     </target>
-    <target depends="-init-test-properties" if="${nb.junit.batch}" name="-init-macrodef-junit-batch" unless="${nb.junit.single}">
-        <macrodef name="junit" uri="http://www.netbeans.org/ns/j2se-project/3">
+    <target depends="-init-modules-supported" name="-init-macrodef-junit-prototype-without-module" unless="modules.supported.internal">
+        <macrodef name="junit-prototype" uri="http://www.netbeans.org/ns/j2se-project/3">
             <attribute default="${includes}" name="includes"/>
             <attribute default="${excludes}" name="excludes"/>
-            <attribute default="**" name="testincludes"/>
-            <attribute default="" name="testmethods"/>
-            <element name="customize" optional="true"/>
+            <element name="customizePrototype" optional="true"/>
             <sequential>
                 <property name="junit.forkmode" value="perTest"/>
                 <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" showoutput="true" tempdir="${build.dir}">
-                    <batchtest todir="${build.test.results.dir}">
-                        <fileset dir="${test.src.dir}" excludes="@{excludes},${excludes}" includes="@{includes}">
-                            <filename name="@{testincludes}"/>
-                        </fileset>
-                        <fileset dir="${build.test.classes.dir}" excludes="@{excludes},${excludes},${test.binaryexcludes}" includes="${test.binaryincludes}">
-                            <filename name="${test.binarytestincludes}"/>
-                        </fileset>
-                    </batchtest>
                     <syspropertyset>
                         <propertyref prefix="test-sys-prop."/>
                         <mapper from="test-sys-prop.*" to="*" type="glob"/>
                     </syspropertyset>
+                    <classpath>
+                        <path path="${run.test.classpath}"/>
+                    </classpath>
                     <formatter type="brief" usefile="false"/>
                     <formatter type="xml"/>
+                    <jvmarg line="${endorsed.classpath.cmd.line.arg}"/>
                     <jvmarg value="-ea"/>
-                    <customize/>
+                    <customizePrototype/>
                 </junit>
             </sequential>
         </macrodef>
     </target>
+    <target depends="-init-test-properties,-init-macrodef-junit-prototype-with-module,-init-macrodef-junit-prototype-without-module" if="${nb.junit.single}" name="-init-macrodef-junit-single" unless="${nb.junit.batch}">
+        <macrodef name="junit" uri="http://www.netbeans.org/ns/j2se-project/3">
+            <attribute default="${includes}" name="includes"/>
+            <attribute default="${excludes}" name="excludes"/>
+            <attribute default="**" name="testincludes"/>
+            <attribute default="" name="testmethods"/>
+            <element name="customize" optional="true"/>
+            <sequential>
+                <j2seproject3:junit-prototype>
+                    <customizePrototype>
+                        <test methods="@{testmethods}" name="@{testincludes}" todir="${build.test.results.dir}"/>
+                        <customize/>
+                    </customizePrototype>
+                </j2seproject3:junit-prototype>
+            </sequential>
+        </macrodef>
+    </target>
+    <target depends="-init-test-properties,-init-macrodef-junit-prototype-with-module,-init-macrodef-junit-prototype-without-module" if="${nb.junit.batch}" name="-init-macrodef-junit-batch" unless="${nb.junit.single}">
+        <macrodef name="junit" uri="http://www.netbeans.org/ns/j2se-project/3">
+            <attribute default="${includes}" name="includes"/>
+            <attribute default="${excludes}" name="excludes"/>
+            <attribute default="**" name="testincludes"/>
+            <attribute default="" name="testmethods"/>
+            <element name="customize" optional="true"/>
+            <sequential>
+                <j2seproject3:junit-prototype>
+                    <customizePrototype>
+                        <batchtest todir="${build.test.results.dir}">
+                            <fileset dir="${test.src.dir}" excludes="@{excludes},${excludes}" includes="@{includes}">
+                                <filename name="@{testincludes}"/>
+                            </fileset>
+                            <fileset dir="${build.test.classes.dir}" excludes="@{excludes},${excludes},${test.binaryexcludes}" includes="${test.binaryincludes}">
+                                <filename name="${test.binarytestincludes}"/>
+                            </fileset>
+                        </batchtest>
+                        <customize/>
+                    </customizePrototype>
+                </j2seproject3:junit-prototype>
+            </sequential>
+        </macrodef>
+    </target>
     <target depends="-init-macrodef-junit-init,-init-macrodef-junit-single, -init-macrodef-junit-batch" if="${junit.available}" name="-init-macrodef-junit"/>
     <target if="${testng.available}" name="-init-macrodef-testng">
         <macrodef name="testng" uri="http://www.netbeans.org/ns/j2se-project/3">
@@ -456,6 +625,10 @@ is divided into following sections:
                         <propertyref prefix="test-sys-prop."/>
                         <mapper from="test-sys-prop.*" to="*" type="glob"/>
                     </propertyset>
+                    <classpath>
+                        <path path="${run.test.classpath}"/>
+                    </classpath>
+                    <jvmarg line="${endorsed.classpath.cmd.line.arg}"/>
                     <customize/>
                 </testng>
             </sequential>
@@ -510,10 +683,6 @@ is divided into following sections:
             <sequential>
                 <j2seproject3:test-impl excludes="@{excludes}" includes="@{includes}" testincludes="@{testincludes}" testmethods="@{testmethods}">
                     <customize>
-                        <classpath>
-                            <path path="${run.test.classpath}"/>
-                        </classpath>
-                        <jvmarg line="${endorsed.classpath.cmd.line.arg}"/>
                         <jvmarg line="${run.jvmargs}"/>
                         <jvmarg line="${run.jvmargs.ide}"/>
                     </customize>
@@ -521,74 +690,20 @@ is divided into following sections:
             </sequential>
         </macrodef>
     </target>
-    <target if="${junit.available}" name="-init-macrodef-junit-debug" unless="${nb.junit.batch}">
-        <macrodef name="junit-debug" uri="http://www.netbeans.org/ns/j2se-project/3">
-            <attribute default="${includes}" name="includes"/>
-            <attribute default="${excludes}" name="excludes"/>
-            <attribute default="**" name="testincludes"/>
-            <attribute default="" name="testmethods"/>
-            <element name="customize" optional="true"/>
-            <sequential>
-                <property name="junit.forkmode" value="perTest"/>
-                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" showoutput="true" tempdir="${build.dir}">
-                    <test methods="@{testmethods}" name="@{testincludes}" todir="${build.test.results.dir}"/>
-                    <syspropertyset>
-                        <propertyref prefix="test-sys-prop."/>
-                        <mapper from="test-sys-prop.*" to="*" type="glob"/>
-                    </syspropertyset>
-                    <formatter type="brief" usefile="false"/>
-                    <formatter type="xml"/>
-                    <jvmarg value="-ea"/>
-                    <jvmarg line="${debug-args-line}"/>
-                    <jvmarg value="-Xrunjdwp:transport=${debug-transport},address=${jpda.address}"/>
-                    <customize/>
-                </junit>
-            </sequential>
-        </macrodef>
-    </target>
-    <target depends="-init-test-properties" if="${nb.junit.batch}" name="-init-macrodef-junit-debug-batch">
-        <macrodef name="junit-debug" uri="http://www.netbeans.org/ns/j2se-project/3">
-            <attribute default="${includes}" name="includes"/>
-            <attribute default="${excludes}" name="excludes"/>
-            <attribute default="**" name="testincludes"/>
-            <attribute default="" name="testmethods"/>
-            <element name="customize" optional="true"/>
-            <sequential>
-                <property name="junit.forkmode" value="perTest"/>
-                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" showoutput="true" tempdir="${build.dir}">
-                    <batchtest todir="${build.test.results.dir}">
-                        <fileset dir="${test.src.dir}" excludes="@{excludes},${excludes}" includes="@{includes}">
-                            <filename name="@{testincludes}"/>
-                        </fileset>
-                        <fileset dir="${build.test.classes.dir}" excludes="@{excludes},${excludes},${test.binaryexcludes}" includes="${test.binaryincludes}">
-                            <filename name="${test.binarytestincludes}"/>
-                        </fileset>
-                    </batchtest>
-                    <syspropertyset>
-                        <propertyref prefix="test-sys-prop."/>
-                        <mapper from="test-sys-prop.*" to="*" type="glob"/>
-                    </syspropertyset>
-                    <formatter type="brief" usefile="false"/>
-                    <formatter type="xml"/>
-                    <jvmarg value="-ea"/>
-                    <jvmarg line="${debug-args-line}"/>
-                    <jvmarg value="-Xrunjdwp:transport=${debug-transport},address=${jpda.address}"/>
-                    <customize/>
-                </junit>
-            </sequential>
-        </macrodef>
-    </target>
-    <target depends="-init-macrodef-junit-debug,-init-macrodef-junit-debug-batch" if="${junit.available}" name="-init-macrodef-junit-debug-impl">
+    <target depends="-init-macrodef-junit" if="${junit.available}" name="-init-macrodef-junit-debug-impl">
         <macrodef name="test-debug-impl" uri="http://www.netbeans.org/ns/j2se-project/3">
             <attribute default="${includes}" name="includes"/>
             <attribute default="${excludes}" name="excludes"/>
             <attribute default="**" name="testincludes"/>
             <attribute default="" name="testmethods"/>
-            <element implicit="true" name="customize" optional="true"/>
+            <element name="customizeDebuggee" optional="true"/>
             <sequential>
-                <j2seproject3:junit-debug excludes="@{excludes}" includes="@{includes}" testincludes="@{testincludes}" testmethods="@{testmethods}">
-                    <customize/>
-                </j2seproject3:junit-debug>
+                <j2seproject3:junit excludes="@{excludes}" includes="@{includes}" testincludes="@{testincludes}" testmethods="@{testmethods}">
+                    <customize>
+                        <jvmarg value="-agentlib:jdwp=transport=${debug-transport},address=${jpda.address}"/>
+                        <customizeDebuggee/>
+                    </customize>
+                </j2seproject3:junit>
             </sequential>
         </macrodef>
     </target>
@@ -607,14 +722,14 @@ is divided into following sections:
                 <delete dir="${build.test.results.dir}" quiet="true"/>
                 <mkdir dir="${build.test.results.dir}"/>
                 <j2seproject3:debug classname="org.testng.TestNG" classpath="${debug.test.classpath}">
-                    <customize>
+                    <customizeDebuggee>
                         <customize2/>
                         <jvmarg value="-ea"/>
                         <arg line="${testng.debug.mode}"/>
                         <arg line="-d ${build.test.results.dir}"/>
                         <arg line="-listener org.testng.reporters.VerboseReporter"/>
                         <arg line="${testng.cmd.args}"/>
-                    </customize>
+                    </customizeDebuggee>
                 </j2seproject3:debug>
             </sequential>
         </macrodef>
@@ -641,14 +756,10 @@ is divided into following sections:
             <attribute default="" name="testMethod"/>
             <sequential>
                 <j2seproject3:test-debug-impl excludes="@{excludes}" includes="@{includes}" testincludes="@{testincludes}" testmethods="@{testmethods}">
-                    <customize>
-                        <classpath>
-                            <path path="${run.test.classpath}"/>
-                        </classpath>
-                        <jvmarg line="${endorsed.classpath.cmd.line.arg}"/>
+                    <customizeDebuggee>
                         <jvmarg line="${run.jvmargs}"/>
                         <jvmarg line="${run.jvmargs.ide}"/>
-                    </customize>
+                    </customizeDebuggee>
                 </j2seproject3:test-debug-impl>
             </sequential>
         </macrodef>
@@ -728,10 +839,14 @@ is divided into following sections:
     <target depends="-init-debug-args" name="-init-macrodef-nbjpda">
         <macrodef name="nbjpdastart" uri="http://www.netbeans.org/ns/j2se-project/1">
             <attribute default="${main.class}" name="name"/>
+            <attribute default="${debug.modulepath}" name="modulepath"/>
             <attribute default="${debug.classpath}" name="classpath"/>
             <attribute default="" name="stopclassname"/>
             <sequential>
                 <nbjpdastart addressproperty="jpda.address" name="@{name}" stopclassname="@{stopclassname}" transport="${debug-transport}">
+                    <modulepath>
+                        <path path="@{modulepath}"/>
+                    </modulepath>
                     <classpath>
                         <path path="@{classpath}"/>
                     </classpath>
@@ -750,18 +865,6 @@ is divided into following sections:
         </macrodef>
     </target>
     <target name="-init-debug-args">
-        <property name="version-output" value="java version &quot;${ant.java.version}"/>
-        <condition property="have-jdk-older-than-1.4">
-            <or>
-                <contains string="${version-output}" substring="java version &quot;1.0"/>
-                <contains string="${version-output}" substring="java version &quot;1.1"/>
-                <contains string="${version-output}" substring="java version &quot;1.2"/>
-                <contains string="${version-output}" substring="java version &quot;1.3"/>
-            </or>
-        </condition>
-        <condition else="-Xdebug" property="debug-args-line" value="-Xdebug -Xnoagent -Djava.compiler=none">
-            <istrue value="${have-jdk-older-than-1.4}"/>
-        </condition>
         <condition else="dt_socket" property="debug-transport-by-os" value="dt_shmem">
             <os family="windows"/>
         </condition>
@@ -771,21 +874,79 @@ is divided into following sections:
     </target>
     <target depends="-init-debug-args" name="-init-macrodef-debug">
         <macrodef name="debug" uri="http://www.netbeans.org/ns/j2se-project/3">
+            <attribute default="${module.name}" name="modulename"/>
             <attribute default="${main.class}" name="classname"/>
+            <attribute default="${debug.modulepath}" name="modulepath"/>
             <attribute default="${debug.classpath}" name="classpath"/>
+            <element name="customizeDebuggee" optional="true"/>
+            <sequential>
+                <j2seproject1:java classname="@{classname}" classpath="@{classpath}" modulename="@{modulename}" modulepath="@{modulepath}">
+                    <customize>
+                        <jvmarg value="-agentlib:jdwp=transport=${debug-transport},address=${jpda.address}"/>
+                        <customizeDebuggee/>
+                    </customize>
+                </j2seproject1:java>
+            </sequential>
+        </macrodef>
+    </target>
+    <target depends="-init-source-module-properties" if="named.module.internal" name="-init-macrodef-java-with-module">
+        <macrodef name="java" uri="http://www.netbeans.org/ns/j2se-project/1">
+            <attribute default="${module.name}" name="modulename"/>
+            <attribute default="${main.class}" name="classname"/>
+            <attribute default="${run.modulepath}" name="modulepath"/>
+            <attribute default="${run.upgrademodulepath}" name="upgrademodulepath"/>
+            <attribute default="${run.classpath}" name="classpath"/>
+            <attribute default="jvm" name="jvm"/>
             <element name="customize" optional="true"/>
             <sequential>
-                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true">
-                    <jvmarg line="${endorsed.classpath.cmd.line.arg}"/>
-                    <jvmarg line="${debug-args-line}"/>
-                    <jvmarg value="-Xrunjdwp:transport=${debug-transport},address=${jpda.address}"/>
+                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true" module="@{modulename}">
+                    <classpath>
+                        <path path="@{classpath}"/>
+                    </classpath>
+                    <modulepath>
+                        <pathelement path="@{modulepath}"/>
+                        <pathelement location="${module.build.classes.dir}"/>
+                    </modulepath>
+                    <upgrademodulepath>
+                        <path path="@{upgrademodulepath}"/>
+                    </upgrademodulepath>
                     <jvmarg value="-Dfile.encoding=${runtime.encoding}"/>
                     <redirector errorencoding="${runtime.encoding}" inputencoding="${runtime.encoding}" outputencoding="${runtime.encoding}"/>
                     <jvmarg line="${run.jvmargs}"/>
                     <jvmarg line="${run.jvmargs.ide}"/>
+                    <syspropertyset>
+                        <propertyref prefix="run-sys-prop."/>
+                        <mapper from="run-sys-prop.*" to="*" type="glob"/>
+                    </syspropertyset>
+                    <customize/>
+                </java>
+            </sequential>
+        </macrodef>
+    </target>
+    <target depends="-init-source-module-properties" if="unnamed.module.internal" name="-init-macrodef-java-with-unnamed-module">
+        <macrodef name="java" uri="http://www.netbeans.org/ns/j2se-project/1">
+            <attribute default="" name="modulename"/>
+            <attribute default="${main.class}" name="classname"/>
+            <attribute default="${run.modulepath}" name="modulepath"/>
+            <attribute default="${run.upgrademodulepath}" name="upgrademodulepath"/>
+            <attribute default="${run.classpath}" name="classpath"/>
+            <attribute default="jvm" name="jvm"/>
+            <element name="customize" optional="true"/>
+            <sequential>
+                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true">
                     <classpath>
                         <path path="@{classpath}"/>
                     </classpath>
+                    <modulepath>
+                        <path path="@{modulepath}"/>
+                    </modulepath>
+                    <upgrademodulepath>
+                        <path path="@{upgrademodulepath}"/>
+                    </upgrademodulepath>
+                    <jvmarg value="-Dfile.encoding=${runtime.encoding}"/>
+                    <redirector errorencoding="${runtime.encoding}" inputencoding="${runtime.encoding}" outputencoding="${runtime.encoding}"/>
+                    <jvmarg line="${run.jvmargs}"/>
+                    <jvmarg line="${run.jvmargs.ide}"/>
                     <syspropertyset>
                         <propertyref prefix="run-sys-prop."/>
                         <mapper from="run-sys-prop.*" to="*" type="glob"/>
@@ -795,9 +956,11 @@ is divided into following sections:
             </sequential>
         </macrodef>
     </target>
-    <target name="-init-macrodef-java">
+    <target depends="-init-source-module-properties" name="-init-macrodef-java-without-module" unless="modules.supported.internal">
         <macrodef name="java" uri="http://www.netbeans.org/ns/j2se-project/1">
+            <attribute default="" name="modulename"/>
             <attribute default="${main.class}" name="classname"/>
+            <attribute default="" name="modulepath"/>
             <attribute default="${run.classpath}" name="classpath"/>
             <attribute default="jvm" name="jvm"/>
             <element name="customize" optional="true"/>
@@ -820,6 +983,7 @@ is divided into following sections:
             </sequential>
         </macrodef>
     </target>
+    <target depends="-init-macrodef-java-with-module, -init-macrodef-java-with-unnamed-module, -init-macrodef-java-without-module" name="-init-macrodef-java"/>
     <target name="-init-macrodef-copylibs">
         <macrodef name="copylibs" uri="http://www.netbeans.org/ns/j2se-project/3">
             <attribute default="${manifest.file}" name="manifest"/>
@@ -909,7 +1073,9 @@ is divided into following sections:
         <available file="${build.classes.dir}/.netbeans_automatic_build" property="netbeans.automatic.build"/>
     </target>
     <target depends="init" if="netbeans.automatic.build" name="-clean-after-automatic-build">
-        <antcall target="clean"/>
+        <antcall target="clean">
+            <param name="no.dependencies" value="true"/>
+        </antcall>
     </target>
     <target depends="init,deps-jar" name="-pre-pre-compile">
         <mkdir dir="${build.classes.dir}"/>
@@ -950,7 +1116,7 @@ is divided into following sections:
     <target depends="init,deps-jar,-pre-pre-compile" name="-do-compile-single">
         <fail unless="javac.includes">Must select some files in the IDE or set javac.includes</fail>
         <j2seproject3:force-recompile/>
-        <j2seproject3:javac excludes="" gensrcdir="${build.generated.sources.dir}" includes="${javac.includes}" sourcepath="${src.dir}"/>
+        <j2seproject3:javac excludes="" gensrcdir="${build.generated.sources.dir}" includes="${javac.includes}, module-info.java" sourcepath="${src.dir}"/>
     </target>
     <target name="-post-compile-single">
         <!-- Empty placeholder for easier customization. -->
@@ -970,6 +1136,25 @@ is divided into following sections:
         <!-- Empty placeholder for easier customization. -->
         <!-- You can override this target in the ../build.xml file. -->
     </target>
+    <target depends="init,compile" name="-check-module-main-class">
+        <pathconvert property="main.class.file">
+            <string value="${main.class}"/>
+            <unpackagemapper from="*" to="*.class"/>
+        </pathconvert>
+        <condition property="do.module.main.class">
+            <and>
+                <isset property="main.class.available"/>
+                <available file="${build.classes.dir}/module-info.class"/>
+                <available file="${build.classes.dir}/${main.class.file}"/>
+                <isset property="libs.CopyLibs.classpath"/>
+                <available classname="org.netbeans.modules.java.j2seproject.moduletask.ModuleMainClass" classpath="${libs.CopyLibs.classpath}"/>
+            </and>
+        </condition>
+    </target>
+    <target depends="-check-module-main-class" if="do.module.main.class" name="-set-module-main-class">
+        <taskdef classname="org.netbeans.modules.java.j2seproject.moduletask.ModuleMainClass" classpath="${libs.CopyLibs.classpath}" name="modulemainclass"/>
+        <modulemainclass failonerror="false" mainclass="${main.class}" moduleinfo="${build.classes.dir}/module-info.class"/>
+    </target>
     <target depends="init" if="do.archive" name="-do-jar-create-manifest" unless="manifest.available">
         <tempfile deleteonexit="true" destdir="${build.dir}" property="tmp.manifest.file"/>
         <touch file="${tmp.manifest.file}" verbose="false"/>
@@ -996,21 +1181,61 @@ is divided into following sections:
             <attribute name="SplashScreen-Image" value="META-INF/${splashscreen.basename}"/>
         </manifest>
     </target>
-    <target depends="init,-init-macrodef-copylibs,compile,-pre-pre-jar,-pre-jar,-do-jar-create-manifest,-do-jar-copy-manifest,-do-jar-set-mainclass,-do-jar-set-profile,-do-jar-set-splashscreen" if="do.mkdist" name="-do-jar-copylibs">
+    <target depends="init,compile" name="-check-do-mkdist">
+        <condition property="do.mkdist">
+            <and>
+                <isset property="do.archive"/>
+                <isset property="libs.CopyLibs.classpath"/>
+                <not>
+                    <istrue value="${mkdist.disabled}"/>
+                </not>
+                <not>
+                    <available file="${build.classes.dir}/module-info.class"/>
+                </not>
+            </and>
+        </condition>
+    </target>
+    <target depends="init,-init-macrodef-copylibs,compile,-pre-pre-jar,-pre-jar,-do-jar-create-manifest,-do-jar-copy-manifest,-do-jar-set-mainclass,-do-jar-set-profile,-do-jar-set-splashscreen,-check-do-mkdist" if="do.mkdist" name="-do-jar-copylibs">
         <j2seproject3:copylibs manifest="${tmp.manifest.file}"/>
         <echo level="info">To run this application from the command line without Ant, try:</echo>
         <property location="${dist.jar}" name="dist.jar.resolved"/>
         <echo level="info">java -jar "${dist.jar.resolved}"</echo>
     </target>
-    <target depends="init,compile,-pre-pre-jar,-pre-jar,-do-jar-create-manifest,-do-jar-copy-manifest,-do-jar-set-mainclass,-do-jar-set-profile,-do-jar-set-splashscreen" if="do.archive" name="-do-jar-jar" unless="do.mkdist">
+    <target depends="init,compile,-pre-pre-jar,-pre-jar,-do-jar-create-manifest,-do-jar-copy-manifest,-do-jar-set-mainclass,-do-jar-set-profile,-do-jar-set-splashscreen,-check-do-mkdist" if="do.archive" name="-do-jar-jar" unless="do.mkdist">
         <j2seproject1:jar manifest="${tmp.manifest.file}"/>
         <property location="${build.classes.dir}" name="build.classes.dir.resolved"/>
         <property location="${dist.jar}" name="dist.jar.resolved"/>
+        <condition else="${dist.jar.resolved}" property="jar.usage.message.class.path.replacement" value="">
+            <isset property="named.module.internal"/>
+        </condition>
         <pathconvert property="run.classpath.with.dist.jar">
             <path path="${run.classpath}"/>
+            <map from="${build.classes.dir.resolved}" to="${jar.usage.message.class.path.replacement}"/>
+        </pathconvert>
+        <pathconvert property="run.modulepath.with.dist.jar">
+            <path location="${dist.jar.resolved}"/>
+            <path path="${run.modulepath}"/>
             <map from="${build.classes.dir.resolved}" to="${dist.jar.resolved}"/>
         </pathconvert>
-        <condition else="" property="jar.usage.message" value="To run this application from the command line without Ant, try:${line.separator}${platform.java} -cp ${run.classpath.with.dist.jar} ${main.class}">
+        <condition else="${run.modulepath}" property="jar.usage.message.run.modulepath.with.dist.jar" value="${run.modulepath.with.dist.jar}">
+            <isset property="named.module.internal"/>
+        </condition>
+        <condition else="" property="jar.usage.message.module.path" value=" -p ${jar.usage.message.run.modulepath.with.dist.jar}">
+            <and>
+                <isset property="modules.supported.internal"/>
+                <length length="0" string="${jar.usage.message.run.modulepath.with.dist.jar}" when="greater"/>
+            </and>
+        </condition>
+        <condition else="" property="jar.usage.message.class.path" value=" -cp ${run.classpath.with.dist.jar}">
+            <length length="0" string="${run.classpath.with.dist.jar}" when="greater"/>
+        </condition>
+        <condition else="/${main.class}" property="jar.usage.message.main.class.class.selector" value="">
+            <isset property="do.module.main.class"/>
+        </condition>
+        <condition else=" ${main.class}" property="jar.usage.message.main.class" value=" -m ${module.name}${jar.usage.message.main.class.class.selector}">
+            <isset property="named.module.internal"/>
+        </condition>
+        <condition else="" property="jar.usage.message" value="To run this application from the command line without Ant, try:${line.separator}${platform.java}${jar.usage.message.module.path}${jar.usage.message.class.path}${jar.usage.message.main.class}">
             <isset property="main.class.available"/>
         </condition>
         <condition else="debug" property="jar.usage.level" value="info">
@@ -1029,8 +1254,73 @@ is divided into following sections:
         <!-- Empty placeholder for easier customization. -->
         <!-- You can override this target in the ../build.xml file. -->
     </target>
-    <target depends="init,compile,-pre-jar,-do-jar-without-libraries,-do-jar-with-libraries,-post-jar" name="-do-jar"/>
-    <target depends="init,compile,-pre-jar,-do-jar,-post-jar" description="Build JAR." name="jar"/>
+    <target depends="init,compile,-pre-jar,-set-module-main-class,-do-jar-without-libraries,-do-jar-with-libraries,-post-jar" name="-do-jar"/>
+    <target depends="init,compile,-pre-jar,-do-jar,-post-jar,deploy" description="Build JAR." name="jar"/>
+    <!--
+                =================
+                DEPLOY SECTION
+                =================
+            -->
+    <target name="-pre-deploy">
+        <!-- Empty placeholder for easier customization. -->
+        <!-- You can override this target in the ../build.xml file. -->
+    </target>
+    <target depends="init" name="-check-jlink">
+        <condition property="do.jlink.internal">
+            <and>
+                <istrue value="${do.jlink}"/>
+                <isset property="do.archive"/>
+                <isset property="named.module.internal"/>
+            </and>
+        </condition>
+    </target>
+    <target depends="init,-do-jar,-post-jar,-pre-deploy,-check-jlink" if="do.jlink.internal" name="-do-deploy">
+        <delete dir="${dist.jlink.dir}" failonerror="false" quiet="true"/>
+        <property name="jlink.launcher.name" value="${application.title}"/>
+        <condition else="${module.name}" property="jlink.add.modules" value="${module.name},${jlink.additionalmodules}">
+            <and>
+                <isset property="jlink.additionalmodules"/>
+                <length length="0" string="${jlink.additionalmodules}" when="greater"/>
+            </and>
+        </condition>
+        <condition property="jlink.do.strip.internal">
+            <and>
+                <isset property="jlink.strip"/>
+                <istrue value="${jlink.strip}"/>
+            </and>
+        </condition>
+        <condition property="jlink.do.additionalparam.internal">
+            <and>
+                <isset property="jlink.additionalparam"/>
+                <length length="0" string="${jlink.additionalparam}" when="greater"/>
+            </and>
+        </condition>
+        <condition property="jlink.do.launcher.internal">
+            <and>
+                <istrue value="${jlink.launcher}"/>
+                <isset property="main.class.available"/>
+            </and>
+        </condition>
+        <property name="platform.jlink" value="${jdk.home}/bin/jlink"/>
+        <property name="jlink.systemmodules.internal" value="${jdk.home}/jmods"/>
+        <exec executable="${platform.jlink}">
+            <arg value="--module-path"/>
+            <arg path="${jlink.systemmodules.internal}:${run.modulepath}:${dist.jar}"/>
+            <arg value="--add-modules"/>
+            <arg value="${jlink.add.modules}"/>
+            <arg if:set="jlink.do.strip.internal" value="--strip-debug"/>
+            <arg if:set="jlink.do.launcher.internal" value="--launcher"/>
+            <arg if:set="jlink.do.launcher.internal" value="${jlink.launcher.name}=${module.name}/${main.class}"/>
+            <arg if:set="jlink.do.additionalparam.internal" line="${jlink.additionalparam}"/>
+            <arg value="--output"/>
+            <arg value="${dist.jlink.output}"/>
+        </exec>
+    </target>
+    <target name="-post-deploy">
+        <!-- Empty placeholder for easier customization. -->
+        <!-- You can override this target in the ../build.xml file. -->
+    </target>
+    <target depends="-do-jar,-post-jar,-pre-deploy,-do-deploy,-post-deploy" name="deploy"/>
     <!--
                 =================
                 EXECUTION SECTION
@@ -1067,9 +1357,9 @@ is divided into following sections:
     </target>
     <target depends="init,compile" name="-debug-start-debuggee">
         <j2seproject3:debug>
-            <customize>
+            <customizeDebuggee>
                 <arg line="${application.args}"/>
-            </customize>
+            </customizeDebuggee>
         </j2seproject3:debug>
     </target>
     <target depends="init,compile,-debug-start-debugger,-debug-start-debuggee" description="Debug project in IDE." if="netbeans.home" name="debug"/>
@@ -1135,28 +1425,24 @@ is divided into following sections:
             </customize>
         </profile>
     </target>
-    <target depends="profile-init,compile-test-single" if="profiler.info.jvmargs.agent" name="-profile-test-single-pre72">
+    <target depends="-init-macrodef-junit,profile-init,compile-test-single" if="profiler.info.jvmargs.agent" name="-profile-test-single-pre72">
         <fail unless="netbeans.home">This target only works when run from inside the NetBeans IDE.</fail>
         <nbprofiledirect>
             <classpath>
                 <path path="${run.test.classpath}"/>
             </classpath>
         </nbprofiledirect>
-        <junit dir="${profiler.info.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" jvm="${profiler.info.jvm}" showoutput="true">
-            <env key="${profiler.info.pathvar}" path="${profiler.info.agentpath}:${profiler.current.path}"/>
-            <jvmarg value="${profiler.info.jvmargs.agent}"/>
-            <jvmarg line="${profiler.info.jvmargs}"/>
-            <test name="${profile.class}"/>
-            <classpath>
-                <path path="${run.test.classpath}"/>
-            </classpath>
-            <syspropertyset>
-                <propertyref prefix="test-sys-prop."/>
-                <mapper from="test-sys-prop.*" to="*" type="glob"/>
-            </syspropertyset>
-            <formatter type="brief" usefile="false"/>
-            <formatter type="xml"/>
-        </junit>
+        <j2seproject3:junit excludes="${excludes}" includes="${includes}" testincludes="${profile.class}" testmethods="">
+            <customize>
+                <jvmarg value="-agentlib:jdwp=transport=${debug-transport},address=${jpda.address}"/>
+                <env key="${profiler.info.pathvar}" path="${profiler.info.agentpath}:${profiler.current.path}"/>
+                <jvmarg value="${profiler.info.jvmargs.agent}"/>
+                <jvmarg line="${profiler.info.jvmargs}"/>
+                <classpath>
+                    <path path="${run.test.classpath}"/>
+                </classpath>
+            </customize>
+        </j2seproject3:junit>
     </target>
     <!--
                 end of pre NB72 profiling section
@@ -1212,6 +1498,12 @@ is divided into following sections:
         <condition else="" property="bug5101868workaround" value="*.java">
             <matches pattern="1\.[56](\..*)?" string="${java.version}"/>
         </condition>
+        <condition else="" property="javadoc.html5.cmd.line.arg" value="-html5">
+            <and>
+                <isset property="javadoc.html5"/>
+                <available file="${jdk.home}${file.separator}lib${file.separator}jrt-fs.jar"/>
+            </and>
+        </condition>
         <javadoc additionalparam="-J-Dfile.encoding=${file.encoding} ${javadoc.additionalparam}" author="${javadoc.author}" charset="UTF-8" destdir="${dist.javadoc.dir}" docencoding="UTF-8" encoding="${javadoc.encoding.used}" failonerror="true" noindex="${javadoc.noindex}" nonavbar="${javadoc.nonavbar}" notree="${javadoc.notree}" private="${javadoc.private}" source="${javac.source}" splitindex="${javadoc.splitindex}" use="${javadoc.use}" useexternalfile="true" version="${javadoc.version}" windowtitle="${javadoc.windowtitle}">
             <classpath>
                 <path path="${javac.classpath}"/>
@@ -1224,6 +1516,7 @@ is divided into following sections:
                 <exclude name="*.java"/>
             </fileset>
             <arg line="${javadoc.endorsed.classpath.cmd.line.arg}"/>
+            <arg line="${javadoc.html5.cmd.line.arg}"/>
         </javadoc>
         <copy todir="${dist.javadoc.dir}">
             <fileset dir="${src.dir}" excludes="${excludes}" includes="${includes}">
@@ -1250,11 +1543,63 @@ is divided into following sections:
         <!-- Empty placeholder for easier customization. -->
         <!-- You can override this target in the ../build.xml file. -->
     </target>
+    <target depends="-init-source-module-properties" if="named.module.internal" name="-init-test-javac-module-properties-with-module">
+        <j2seproject3:modulename property="test.module.name" sourcepath="${test.src.dir}"/>
+        <condition else="${empty.dir}" property="javac.test.sourcepath" value="${test.src.dir}">
+            <and>
+                <isset property="test.module.name"/>
+                <length length="0" string="${test.module.name}" when="greater"/>
+            </and>
+        </condition>
+        <condition else="--patch-module ${module.name}=${test.src.dir} --add-reads ${module.name}=ALL-UNNAMED" property="javac.test.compilerargs" value="--add-reads ${test.module.name}=ALL-UNNAMED">
+            <and>
+                <isset property="test.module.name"/>
+                <length length="0" string="${test.module.name}" when="greater"/>
+            </and>
+        </condition>
+    </target>
+    <target depends="-init-source-module-properties" if="named.module.internal" name="-init-test-run-module-properties">
+        <condition else="${module.name}" property="run.test.addexport.source.module.internal" value="${test.module.name}">
+            <and>
+                <isset property="test.module.name"/>
+                <length length="0" string="${test.module.name}" when="greater"/>
+            </and>
+        </condition>
+        <fileset dir="${build.test.classes.dir}" id="run.test.packages.internal" includes="**/*.class"/>
+        <property location="${build.test.classes.dir}" name="build.test.classes.dir.abs.internal"/>
+        <pathconvert pathsep=" " property="run.test.addexports.internal" refid="run.test.packages.internal">
+            <chainedmapper>
+                <regexpmapper from="^(.*)\Q${file.separator}\E.*\.class$$" to="\1"/>
+                <filtermapper>
+                    <uniqfilter/>
+                    <replacestring from="${build.test.classes.dir.abs.internal}" to=""/>
+                </filtermapper>
+                <cutdirsmapper dirs="1"/>
+                <packagemapper from="*" to="--add-exports ${run.test.addexport.source.module.internal}/*=ALL-UNNAMED"/>
+            </chainedmapper>
+        </pathconvert>
+        <condition else="--patch-module ${module.name}=${build.test.classes.dir} --add-modules ${module.name} --add-reads ${module.name}=ALL-UNNAMED ${run.test.addexports.internal}" property="run.test.jvmargs" value="--add-modules ${test.module.name} --add-reads ${test.module.name}=ALL-UNNAMED ${run.test.addexports.internal}">
+            <and>
+                <isset property="test.module.name"/>
+                <length length="0" string="${test.module.name}" when="greater"/>
+            </and>
+        </condition>
+    </target>
+    <target depends="-init-source-module-properties" name="-init-test-module-properties-without-module" unless="named.module.internal">
+        <property name="javac.test.sourcepath" value="${empty.dir}"/>
+        <property name="javac.test.compilerargs" value=""/>
+        <property name="run.test.jvmargs" value=""/>
+    </target>
+    <target depends="-init-test-javac-module-properties-with-module,-init-test-module-properties-without-module" name="-init-test-module-properties"/>
     <target if="do.depend.true" name="-compile-test-depend">
         <j2seproject3:depend classpath="${javac.test.classpath}" destdir="${build.test.classes.dir}" srcdir="${test.src.dir}"/>
     </target>
-    <target depends="init,deps-jar,compile,-pre-pre-compile-test,-pre-compile-test,-compile-test-depend" if="have.tests" name="-do-compile-test">
-        <j2seproject3:javac apgeneratedsrcdir="${build.test.classes.dir}" classpath="${javac.test.classpath}" debug="true" destdir="${build.test.classes.dir}" processorpath="${javac.test.processorpath}" srcdir="${test.src.dir}"/>
+    <target depends="init,deps-jar,compile,-init-test-module-properties,-pre-pre-compile-test,-pre-compile-test,-compile-test-depend" if="have.tests" name="-do-compile-test">
+        <j2seproject3:javac apgeneratedsrcdir="${build.test.classes.dir}" classpath="${javac.test.classpath}" debug="true" destdir="${build.test.classes.dir}" modulepath="${javac.test.modulepath}" processorpath="${javac.test.processorpath}" sourcepath="${javac.test.sourcepath}" srcdir="${test.src.dir}">
+            <customize>
+                <compilerarg line="${javac.test.compilerargs}"/>
+            </customize>
+        </j2seproject3:javac>
         <copy todir="${build.test.classes.dir}">
             <fileset dir="${test.src.dir}" excludes="${build.classes.excludes},${excludes}" includes="${includes}"/>
         </copy>
@@ -1268,10 +1613,14 @@ is divided into following sections:
         <!-- Empty placeholder for easier customization. -->
         <!-- You can override this target in the ../build.xml file. -->
     </target>
-    <target depends="init,deps-jar,compile,-pre-pre-compile-test,-pre-compile-test-single" if="have.tests" name="-do-compile-test-single">
+    <target depends="init,deps-jar,compile,-init-test-module-properties,-pre-pre-compile-test,-pre-compile-test-single" if="have.tests" name="-do-compile-test-single">
         <fail unless="javac.includes">Must select some files in the IDE or set javac.includes</fail>
         <j2seproject3:force-recompile destdir="${build.test.classes.dir}"/>
-        <j2seproject3:javac apgeneratedsrcdir="${build.test.classes.dir}" classpath="${javac.test.classpath}" debug="true" destdir="${build.test.classes.dir}" excludes="" includes="${javac.includes}" processorpath="${javac.test.processorpath}" sourcepath="${test.src.dir}" srcdir="${test.src.dir}"/>
+        <j2seproject3:javac apgeneratedsrcdir="${build.test.classes.dir}" classpath="${javac.test.classpath}" debug="true" destdir="${build.test.classes.dir}" excludes="" includes="${javac.includes}, module-info.java" modulepath="${javac.test.modulepath}" processorpath="${javac.test.processorpath}" sourcepath="${test.src.dir}" srcdir="${test.src.dir}">
+            <customize>
+                <compilerarg line="${javac.test.compilerargs}"/>
+            </customize>
+        </j2seproject3:javac>
         <copy todir="${build.test.classes.dir}">
             <fileset dir="${test.src.dir}" excludes="${build.classes.excludes},${excludes}" includes="${includes}"/>
         </copy>
@@ -1289,7 +1638,7 @@ is divided into following sections:
     <target depends="init" if="have.tests" name="-pre-test-run">
         <mkdir dir="${build.test.results.dir}"/>
     </target>
-    <target depends="init,compile-test,-pre-test-run" if="have.tests" name="-do-test-run">
+    <target depends="init,compile-test,-init-test-run-module-properties,-pre-test-run" if="have.tests" name="-do-test-run">
         <j2seproject3:test includes="${includes}" testincludes="**/*Test.java"/>
     </target>
     <target depends="init,compile-test,-pre-test-run,-do-test-run" if="have.tests" name="-post-test-run">
@@ -1301,14 +1650,14 @@ is divided into following sections:
     <target depends="init" if="have.tests" name="-pre-test-run-single">
         <mkdir dir="${build.test.results.dir}"/>
     </target>
-    <target depends="init,compile-test-single,-pre-test-run-single" if="have.tests" name="-do-test-run-single">
+    <target depends="init,compile-test-single,-init-test-run-module-properties,-pre-test-run-single" if="have.tests" name="-do-test-run-single">
         <fail unless="test.includes">Must select some files in the IDE or set test.includes</fail>
         <j2seproject3:test excludes="" includes="${test.includes}" testincludes="${test.includes}"/>
     </target>
     <target depends="init,compile-test-single,-pre-test-run-single,-do-test-run-single" if="have.tests" name="-post-test-run-single">
         <fail if="tests.failed" unless="ignore.failing.tests">Some tests failed; see details above.</fail>
     </target>
-    <target depends="init,compile-test-single,-pre-test-run-single,-do-test-run-single,-post-test-run-single" description="Run single unit test." name="test-single"/>
+    <target depends="init,compile-test-single,-init-test-run-module-properties,-pre-test-run-single,-do-test-run-single,-post-test-run-single" description="Run single unit test." name="test-single"/>
     <target depends="init,compile-test-single,-pre-test-run-single" if="have.tests" name="-do-test-run-single-method">
         <fail unless="test.class">Must select some files in the IDE or set test.class</fail>
         <fail unless="test.method">Must select some method in the IDE or set test.method</fail>
@@ -1317,7 +1666,7 @@ is divided into following sections:
     <target depends="init,compile-test-single,-pre-test-run-single,-do-test-run-single-method" if="have.tests" name="-post-test-run-single-method">
         <fail if="tests.failed" unless="ignore.failing.tests">Some tests failed; see details above.</fail>
     </target>
-    <target depends="init,compile-test-single,-pre-test-run-single,-do-test-run-single-method,-post-test-run-single-method" description="Run single unit test." name="test-single-method"/>
+    <target depends="init,compile-test-single,-init-test-run-module-properties,-pre-test-run-single,-do-test-run-single-method,-post-test-run-single-method" description="Run single unit test." name="test-single-method"/>
     <!--
                 =======================
                 TEST DEBUGGING SECTION
@@ -1335,8 +1684,9 @@ is divided into following sections:
     <target depends="init,compile-test" if="netbeans.home+have.tests" name="-debug-start-debugger-test">
         <j2seproject1:nbjpdastart classpath="${debug.test.classpath}" name="${test.class}"/>
     </target>
-    <target depends="init,compile-test-single,-debug-start-debugger-test,-debug-start-debuggee-test" name="debug-test"/>
-    <target depends="init,compile-test-single,-debug-start-debugger-test,-debug-start-debuggee-test-method" name="debug-test-method"/>
+    <target depends="init,compile-test-single,-init-test-run-module-properties,-debug-start-debugger-test,-debug-start-debuggee-test" name="debug-test"/>
+    <target depends="init,compile-test-single,-init-test-run-module-properties,-debug-start-debugger-test,-debug-start-debuggee-test-method" name="debug-test-method"/>
+    <target depends="debug-test-method" name="debug-single-method"/>
     <target depends="init,-pre-debug-fix,compile-test-single" if="netbeans.home" name="-do-debug-fix-test">
         <j2seproject1:nbjpdareload dir="${build.test.classes.dir}"/>
     </target>
@@ -1362,9 +1712,9 @@ is divided into following sections:
     <target depends="init,compile-single" if="netbeans.home" name="-debug-start-debuggee-applet">
         <fail unless="applet.url">Must select one file in the IDE or set applet.url</fail>
         <j2seproject3:debug classname="sun.applet.AppletViewer">
-            <customize>
+            <customizeDebuggee>
                 <arg value="${applet.url}"/>
-            </customize>
+            </customizeDebuggee>
         </j2seproject3:debug>
     </target>
     <target depends="init,compile-single,-debug-start-debugger,-debug-start-debuggee-applet" if="netbeans.home" name="debug-applet"/>
@@ -1391,6 +1741,7 @@ is divided into following sections:
     </target>
     <target depends="init" name="-do-clean">
         <delete dir="${build.dir}"/>
+        <delete dir="${dist.jlink.output}"/>
         <delete dir="${dist.dir}" followsymlinks="false" includeemptydirs="true"/>
     </target>
     <target name="-post-clean">
diff --git a/Project/nbproject/genfiles.properties b/Project/nbproject/genfiles.properties
index d2b6ccd..47ce661 100644
--- a/Project/nbproject/genfiles.properties
+++ b/Project/nbproject/genfiles.properties
@@ -1,8 +1,8 @@
 build.xml.data.CRC32=507ddfa4
 build.xml.script.CRC32=5d5937f5
-build.xml.stylesheet.CRC32=8064a381@1.80.1.48
+build.xml.stylesheet.CRC32=f85dc8f2@1.106.0.48
 # This file is used by a NetBeans-based IDE to track changes in generated files such as build-impl.xml.
 # Do not edit this file. You may delete it but then the IDE will never regenerate such files for you.
 nbproject/build-impl.xml.data.CRC32=507ddfa4
-nbproject/build-impl.xml.script.CRC32=0ebf329b
-nbproject/build-impl.xml.stylesheet.CRC32=830a3534@1.80.1.48
+nbproject/build-impl.xml.script.CRC32=0eec8d9b
+nbproject/build-impl.xml.stylesheet.CRC32=12e0a6c2@1.106.0.48
diff --git a/Project/nbproject/private/private.properties b/Project/nbproject/private/private.properties
index 81f405d..5d066d7 100644
--- a/Project/nbproject/private/private.properties
+++ b/Project/nbproject/private/private.properties
@@ -3,4 +3,4 @@ do.depend=false
 do.jar=true
 javac.debug=true
 javadoc.preview=true
-user.properties.file=C:\\Users\\PAKLAP.pk\\AppData\\Roaming\\NetBeans\\8.2\\build.properties
+user.properties.file=C:\\Users\\2106802\\AppData\\Roaming\\NetBeans\\17\\build.properties
diff --git a/Project/nbproject/private/private.xml b/Project/nbproject/private/private.xml
index c9cdd70..ea685a5 100644
--- a/Project/nbproject/private/private.xml
+++ b/Project/nbproject/private/private.xml
@@ -3,7 +3,14 @@
     <editor-bookmarks xmlns="http://www.netbeans.org/ns/editor-bookmarks/2" lastBookmarkId="0"/>
     <open-files xmlns="http://www.netbeans.org/ns/projectui-open-files/2">
         <group>
-            <file>file:/D:/FAST/5th%20Semester%20%20%20%20(Fall%202017)/Object%20Oriented%20Analysis%20and%20Design/Assignments/Assignment%201/Library%20Management%20System/Project/src/LMS/Main.java</file>
+            <file>file:/C:/Users/2106802/Downloads/Library-Management-System-JAVA-master/Project/src/LMS/HoldRequestOperations.java</file>
+            <file>file:/C:/Users/2106802/Downloads/Library-Management-System-JAVA-master/Project/src/LMS/Book.java</file>
+            <file>file:/C:/Users/2106802/Downloads/Library-Management-System-JAVA-master/Project/src/LMS/Main.java</file>
+            <file>file:/C:/Users/2106802/Downloads/Library-Management-System-JAVA-master/Project/src/LMS/HoldRequest.java</file>
+            <file>file:/C:/Users/2106802/Downloads/Library-Management-System-JAVA-master/Project/src/LMS/Library.java</file>
+            <file>file:/C:/Users/2106802/Downloads/Library-Management-System-JAVA-master/Project/src/LMS/Librarian.java</file>
+            <file>file:/C:/Users/2106802/Downloads/Library-Management-System-JAVA-master/Project/src/LMS/HoldRequestActions.java</file>
+            <file>file:/C:/Users/2106802/Downloads/Library-Management-System-JAVA-master/Project/src/LMS/Borrower.java</file>
         </group>
     </open-files>
 </project-private>
diff --git a/Project/nbproject/project.properties b/Project/nbproject/project.properties
index 7ba7b82..b3af81d 100644
--- a/Project/nbproject/project.properties
+++ b/Project/nbproject/project.properties
@@ -19,8 +19,12 @@ build.test.results.dir=${build.dir}/test/results
 #debug.transport=dt_socket
 debug.classpath=\
     ${run.classpath}
+debug.modulepath=\
+    ${run.modulepath}
 debug.test.classpath=\
     ${run.test.classpath}
+debug.test.modulepath=\
+    ${run.test.modulepath}
 # Files in build.classes.dir which should be excluded from distribution jar
 dist.archive.excludes=
 # This directory is removed when the project is cleaned:
@@ -29,15 +33,17 @@ dist.jar=${dist.dir}/Library_Management_System.jar
 dist.javadoc.dir=${dist.dir}/javadoc
 endorsed.classpath=
 excludes=
-file.reference.derbyclient-10.2.2.0.jar=derbyclient-10.2.2.0.jar
+file.reference.mysql-connector-j-8.3.0.jar=C:\\Users\\2106802\\Downloads\\mysql-connector-j-8.3.0\\mysql-connector-j-8.3.0.jar
 includes=**
 jar.compress=false
 javac.classpath=\
-    ${file.reference.derbyclient-10.2.2.0.jar}
+    ${file.reference.mysql-connector-j-8.3.0.jar}
 # Space-separated list of extra javac options
 javac.compilerargs=
 javac.deprecation=false
 javac.external.vm=true
+javac.modulepath=
+javac.processormodulepath=
 javac.processorpath=\
     ${javac.classpath}
 javac.source=1.8
@@ -45,6 +51,8 @@ javac.target=1.8
 javac.test.classpath=\
     ${javac.classpath}:\
     ${build.classes.dir}
+javac.test.modulepath=\
+    ${javac.modulepath}
 javac.test.processorpath=\
     ${javac.test.classpath}
 javadoc.additionalparam=
@@ -70,9 +78,13 @@ run.classpath=\
 # You may also define separate properties like run-sys-prop.name=value instead of -Dname=value.
 # To set system properties for unit tests define test-sys-prop.name=value:
 run.jvmargs=
+run.modulepath=\
+    ${javac.modulepath}
 run.test.classpath=\
     ${javac.test.classpath}:\
     ${build.test.classes.dir}
+run.test.modulepath=\
+    ${javac.test.modulepath}
 source.encoding=UTF-8
 src.dir=src
 test.src.dir=test
diff --git a/Project/src/LMS/Book.java b/Project/src/LMS/Book.java
index e2732a0..720e23f 100644
--- a/Project/src/LMS/Book.java
+++ b/Project/src/LMS/Book.java
@@ -12,7 +12,7 @@ public class Book {
     private String subject;       // Subject to which a book is related!
     private String author;        // Author of book!
     private boolean isIssued;        // this will be true if the book is currently issued to some borrower.
-    private HoldRequestOperations holdRequestsOperations =new HoldRequestOperations();
+    private HoldRequestOperations holdRequests;
     static int currentIdNumber = 0;     //This will be unique for every book, since it will be incremented when everytime
                                         //when a book is created
     
@@ -31,6 +31,7 @@ public Book(int id,String t, String s, String a, boolean issued)    // Parameter
         subject = s;
         author = a;
         isIssued = issued;
+        this.holdRequests = holdRequests;
 
     }
 
@@ -38,7 +39,7 @@ public Book(int id,String t, String s, String a, boolean issued)    // Parameter
     // printing all hold req on a book.
     public void printHoldRequests()
     {
-        if (!holdRequestsOperations.holdRequests.isEmpty())
+        if (!holdRequests.holdRequests.isEmpty())
         { 
             System.out.println("\nHold Requests are: ");
             
@@ -46,10 +47,10 @@ public void printHoldRequests()
             System.out.println("No.\t\tBook's Title\t\t\tBorrower's Name\t\t\tRequest Date");
             System.out.println("---------------------------------------------------------------------------------------------------------------------------------------");
             
-            for (int i = 0; i < holdRequestsOperations.holdRequests.size(); i++)
+            for (int i = 0; i < holdRequests.holdRequests.size(); i++)
             {                      
                 System.out.print(i + "-" + "\t\t");
-                holdRequestsOperations.holdRequests.get(i).print();
+                holdRequests.holdRequests.get(i).print();
             }
         }
         else
@@ -135,7 +136,7 @@ public int getID()
      
      public ArrayList<HoldRequest> getHoldRequests()
     {
-        return holdRequestsOperations.holdRequests;
+        return holdRequests.holdRequests;
     }
     /*-----------------------------------*/
      
@@ -155,7 +156,7 @@ public void placeBookOnHold(Borrower bor)
     {
         HoldRequest hr = new HoldRequest(bor,this, new Date());
 
-        holdRequestsOperations.addHoldRequest(hr);        //Add this hold request to holdRequests queue of this book
+        holdRequests.addHoldRequest(hr);        //Add this hold request to holdRequests queue of this book
         bor.addHoldRequest(hr);      //Add this hold request to that particular borrower's class as well
         
         System.out.println("\nThe book " + title + " has been successfully placed on hold by borrower " + bor.getName() + ".\n");
@@ -181,9 +182,9 @@ public void makeHoldRequest(Borrower borrower)
         
         
         //If that borrower has already requested for that particular book. Then he isn't allowed to make the same request again.
-        for (int i = 0; i < holdRequestsOperations.holdRequests.size(); i++)
+        for (int i = 0; i < holdRequests.holdRequests.size(); i++)
         {
-            if ((holdRequestsOperations.holdRequests.get(i).getBorrower() == borrower))
+            if ((holdRequests.holdRequests.get(i).getBorrower() == borrower))
             {
                 makeRequest = false;    
                 break;
@@ -202,7 +203,7 @@ public void makeHoldRequest(Borrower borrower)
     // Getting Info of a Hold Request
     public void serviceHoldRequest(HoldRequest hr)
     {
-        holdRequestsOperations.removeHoldRequest();
+        holdRequests.removeHoldRequest();
         hr.getBorrower().removeHoldRequest(hr);
     }
 
@@ -214,7 +215,7 @@ public void issueBook(Borrower borrower, Staff staff)
         //First deleting the expired hold requests
         Date today = new Date();        
         
-        ArrayList<HoldRequest> hRequests = holdRequestsOperations.holdRequests;
+        ArrayList<HoldRequest> hRequests = holdRequests.holdRequests;
         
         for (int i = 0; i < hRequests.size(); i++)
         {
@@ -226,7 +227,7 @@ public void issueBook(Borrower borrower, Staff staff)
             
             if(days>Library.getInstance().getHoldRequestExpiry())
             {
-                holdRequestsOperations.removeHoldRequest();
+                holdRequests.removeHoldRequest();
                 hr.getBorrower().removeHoldRequest(hr);
             } 
         }
@@ -247,13 +248,13 @@ public void issueBook(Borrower borrower, Staff staff)
         
         else
         {               
-            if (!holdRequestsOperations.holdRequests.isEmpty())
+            if (!holdRequests.holdRequests.isEmpty())
             {
                 boolean hasRequest = false;
                 
-                for (int i = 0; i < holdRequestsOperations.holdRequests.size() && !hasRequest;i++)
+                for (int i = 0; i < holdRequests.holdRequests.size() && !hasRequest;i++)
                 {
-                    if (holdRequestsOperations.holdRequests.get(i).getBorrower() == borrower)
+                    if (holdRequests.holdRequests.get(i).getBorrower() == borrower)
                         hasRequest = true;
                         
                 }
@@ -261,8 +262,8 @@ public void issueBook(Borrower borrower, Staff staff)
                 if (hasRequest)
                 {
                     //If this particular borrower has the earliest request for this book
-                    if (holdRequestsOperations.holdRequests.get(0).getBorrower() == borrower)
-                        serviceHoldRequest(holdRequestsOperations.holdRequests.get(0));
+                    if (holdRequests.holdRequests.get(0).getBorrower() == borrower)
+                        serviceHoldRequest(holdRequests.holdRequests.get(0));
 
                     else
                     {
diff --git a/Project/src/LMS/HoldRequestActions.java b/Project/src/LMS/HoldRequestActions.java
new file mode 100644
index 0000000..b180941
--- /dev/null
+++ b/Project/src/LMS/HoldRequestActions.java
@@ -0,0 +1,21 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Interface.java to edit this template
+ */
+package LMS;
+
+/**
+ *
+ * @author 2106802
+ */
+public interface HoldRequestActions {
+    
+    public void addHoldRequest(HoldRequest hr);
+ 
+public void removeHoldRequest (HoldRequest hr); public void removeHoldRequest();
+ 
+public void printHoldRequest();
+ 
+public void serviceHoldRequest(HoldRequest hr);
+    
+}
diff --git a/Project/src/LMS/HoldRequestOperations.java b/Project/src/LMS/HoldRequestOperations.java
index 85cd905..3e955b2 100644
--- a/Project/src/LMS/HoldRequestOperations.java
+++ b/Project/src/LMS/HoldRequestOperations.java
@@ -2,7 +2,7 @@
 
 import java.util.ArrayList;
 
-public class HoldRequestOperations {
+public class HoldRequestOperations implements HoldRequestActions {
 
    static ArrayList <HoldRequest> holdRequests;
 
@@ -23,4 +23,19 @@ public void removeHoldRequest()
             holdRequests.remove(0);
         }
     }
+
+    @Override
+    public void removeHoldRequest(HoldRequest hr) {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public void printHoldRequest() {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
+
+    @Override
+    public void serviceHoldRequest(HoldRequest hr) {
+        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+    }
 }
diff --git a/Project/src/LMS/Library.java b/Project/src/LMS/Library.java
index 76a548f..ad8bff7 100644
--- a/Project/src/LMS/Library.java
+++ b/Project/src/LMS/Library.java
@@ -599,12 +599,24 @@ public Connection makeConnection()
     {        
         try
         {
-            String host = "jdbc:derby://localhost:1527/LMS";
-            String uName = "haris";
-            String uPass= "123";
+           // try {
+                //String host = "jdbc:derby://localhost:3306/LMS";
+                //String uName = "haris";
+                //String uPass= "123";
+
+                Class.forName("com.mysql.cj.jdbc.Driver");
+            //} catch (ClassNotFoundException ex) {
+               // Logger.getLogger(Library.class.getName()).log(Level.SEVERE, null, ex);
+            String host = "jdbc:mysql://localhost:3306/LMS";
+            String uName = "root";
+            String uPass= "admin";
             Connection con = DriverManager.getConnection( host, uName, uPass );
             return con;
         }
+        catch (ClassNotFoundException ex) {
+                Logger.getLogger(Library.class.getName()).log(Level.SEVERE, null, ex);
+           return null;
+        }
         catch ( SQLException err ) 
         {
             System.out.println( err.getMessage( ) );