From abe75f57da1e4c03d02b69a73459fd8ef8893ae8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=85smund=20V=C3=A5ge=20Fannemel?=
 <34712686+asmfstatoil@users.noreply.github.com>
Date: Fri, 2 Aug 2024 10:49:27 +0200
Subject: [PATCH] chore: fix javadoc (#1066)

---
 .../neqsim/thermo/component/Component.java    | 20 +++++++++----------
 .../neqsim/thermo/component/ComponentEos.java |  4 ++++
 .../thermo/component/ComponentInterface.java  |  6 +++---
 .../thermo/component/ComponentPRvolcor.java   |  8 +++++++-
 .../mixingRule/EosMixingRulesInterface.java   |  7 +++++++
 src/main/java/neqsim/thermo/phase/Phase.java  |  4 ++--
 .../thermo/phase/PhaseDesmukhMather.java      |  1 +
 .../neqsim/thermo/phase/PhaseDuanSun.java     |  1 +
 .../thermo/phase/PhaseEosInterface.java       |  4 ++--
 .../java/neqsim/thermo/phase/PhaseGENRTL.java |  3 ++-
 .../thermo/phase/PhaseGENRTLmodifiedHV.java   |  4 ++--
 .../thermo/phase/PhaseGENRTLmodifiedWS.java   |  4 ++--
 .../neqsim/thermo/phase/PhaseGEUnifac.java    |  2 +-
 .../thermo/phase/PhaseGEUnifacPSRK.java       |  2 +-
 .../thermo/phase/PhaseGEUnifacUMRPRU.java     | 16 ++++++++++++---
 .../neqsim/thermo/phase/PhaseGEUniquac.java   |  3 ++-
 .../neqsim/thermo/phase/PhaseGEWilson.java    |  3 ++-
 .../neqsim/thermo/phase/PhaseHydrate.java     |  2 +-
 .../neqsim/thermo/phase/PhaseInterface.java   | 14 ++++++-------
 .../neqsim/thermo/phase/PhasePrEosvolcor.java | 16 ++-------------
 .../java/neqsim/thermo/phase/PhaseType.java   |  2 ++
 .../neqsim/thermo/phase/StateOfMatter.java    |  2 ++
 .../neqsim/thermo/system/SystemInterface.java | 18 +++++++++++------
 .../neqsim/thermo/system/SystemThermo.java    |  9 +++------
 24 files changed, 91 insertions(+), 64 deletions(-)

diff --git a/src/main/java/neqsim/thermo/component/Component.java b/src/main/java/neqsim/thermo/component/Component.java
index befcaffbc5..486f93cb70 100644
--- a/src/main/java/neqsim/thermo/component/Component.java
+++ b/src/main/java/neqsim/thermo/component/Component.java
@@ -17,6 +17,13 @@
 import neqsim.util.unit.PressureUnit;
 import neqsim.util.unit.TemperatureUnit;
 
+/**
+ * <p>
+ * Abstract Component class.
+ * </p>
+ *
+ * @author Even Solbraa
+ */
 public abstract class Component implements ComponentInterface {
   private static final long serialVersionUID = 1000;
   static Logger logger = LogManager.getLogger(Component.class);
@@ -499,11 +506,10 @@ public Component clone() {
   @Override
   public void addMolesChemReac(double dn, double totdn) {
     if (numberOfMoles + totdn < 0 || numberOfMolesInPhase + dn < 0) {
-      if (Math.abs(dn) < 1e-12){
+      if (Math.abs(dn) < 1e-12) {
         dn = 0;
         totdn = 0;
-      }
-      else{
+      } else {
         String msg = "will lead to negative number of moles of component in phase for component "
             + getComponentName() + "  who has " + numberOfMolesInPhase
             + " in phase  and chage request was " + dn;
@@ -2285,13 +2291,7 @@ public double getVolumeCorrectionT() {
     return volumeCorrectionT;
   }
 
-  /**
-   * <p>
-   * getVolumeCorrection.
-   * </p>
-   *
-   * @return a double
-   */
+  /** {@inheritDoc} */
   @Override
   public double getVolumeCorrection() {
     return 0.0;
diff --git a/src/main/java/neqsim/thermo/component/ComponentEos.java b/src/main/java/neqsim/thermo/component/ComponentEos.java
index 935d52ae0c..b48e16fedf 100644
--- a/src/main/java/neqsim/thermo/component/ComponentEos.java
+++ b/src/main/java/neqsim/thermo/component/ComponentEos.java
@@ -33,6 +33,10 @@
 import neqsim.thermo.phase.PhaseInterface;
 
 /**
+ * <p>
+ * Abstract ComponentEos class.
+ * </p>
+ *
  * @author Even Solbraa
  */
 public abstract class ComponentEos extends Component implements ComponentEosInterface {
diff --git a/src/main/java/neqsim/thermo/component/ComponentInterface.java b/src/main/java/neqsim/thermo/component/ComponentInterface.java
index 16823d7686..eece17095e 100644
--- a/src/main/java/neqsim/thermo/component/ComponentInterface.java
+++ b/src/main/java/neqsim/thermo/component/ComponentInterface.java
@@ -635,9 +635,8 @@ public double fugcoefDiffTempNumeric(PhaseInterface phase, int numberOfComponent
    * <p>
    * setMolarMass.
    * </p>
-   * 
+   *
    * @param molarMass a double
-   * 
    * @param unit a String
    */
   public void setMolarMass(double molarMass, String unit);
@@ -994,8 +993,9 @@ public void Finit(PhaseInterface phase, double temperature, double pressure,
    * <p>
    * getNormalLiquidDensity.
    * </p>
-   * 
+   *
    * @param unit i String with unit of return return a double
+   * @return a double
    */
   public double getNormalLiquidDensity(String unit);
 
diff --git a/src/main/java/neqsim/thermo/component/ComponentPRvolcor.java b/src/main/java/neqsim/thermo/component/ComponentPRvolcor.java
index 204f91649d..b4abaf4883 100644
--- a/src/main/java/neqsim/thermo/component/ComponentPRvolcor.java
+++ b/src/main/java/neqsim/thermo/component/ComponentPRvolcor.java
@@ -102,7 +102,13 @@ public void init(double temp, double pres, double totMoles, double beta, int ini
     c = calcc();
   }
 
-  /** {@inheritDoc} */
+  /**
+   * <p>
+   * getc.
+   * </p>
+   *
+   * @return a double
+   */
   public double getc() {
     return c;
   }
diff --git a/src/main/java/neqsim/thermo/mixingRule/EosMixingRulesInterface.java b/src/main/java/neqsim/thermo/mixingRule/EosMixingRulesInterface.java
index 086949a171..6332ab9778 100644
--- a/src/main/java/neqsim/thermo/mixingRule/EosMixingRulesInterface.java
+++ b/src/main/java/neqsim/thermo/mixingRule/EosMixingRulesInterface.java
@@ -275,6 +275,13 @@ public double calcAiT(int compNumb, PhaseInterface phase, double temperature, do
    */
   public PhaseInterface getGEPhase();
 
+  /**
+   * <p>
+   * getBinaryInteractionParameters.
+   * </p>
+   *
+   * @return an array of type double
+   */
   public double[][] getBinaryInteractionParameters();
   // double calcA2(PhaseInterface phase, double temperature, double pressure, int
   // numbcomp);
diff --git a/src/main/java/neqsim/thermo/phase/Phase.java b/src/main/java/neqsim/thermo/phase/Phase.java
index 2f71cc4bd3..d3c8407ded 100644
--- a/src/main/java/neqsim/thermo/phase/Phase.java
+++ b/src/main/java/neqsim/thermo/phase/Phase.java
@@ -1276,7 +1276,7 @@ public void initRefPhases(boolean onlyPure) {
    * </p>
    *
    * @param onlyPure a boolean
-   * @param name a {@link String} object
+   * @param name a {@link java.lang.String} object
    */
   public void initRefPhases(boolean onlyPure, String name) {
     refPhase = new PhaseInterface[numberOfComponents];
@@ -2294,7 +2294,7 @@ public double getFlowRate(String flowunit) {
    * Getter for the field <code>thermoPropertyModelName</code>.
    * </p>
    *
-   * @return a {@link String} object
+   * @return a {@link java.lang.String} object
    */
   public String getThermoPropertyModelName() {
     return thermoPropertyModelName;
diff --git a/src/main/java/neqsim/thermo/phase/PhaseDesmukhMather.java b/src/main/java/neqsim/thermo/phase/PhaseDesmukhMather.java
index 76413838c0..b40d6006e4 100644
--- a/src/main/java/neqsim/thermo/phase/PhaseDesmukhMather.java
+++ b/src/main/java/neqsim/thermo/phase/PhaseDesmukhMather.java
@@ -282,6 +282,7 @@ public double getSolventMolarMass() {
     return molesMass / moles;
   }
 
+  /** {@inheritDoc} */
   @Override
   public double molarVolume(double pressure, double temperature, double A, double B, PhaseType pt)
       throws IsNaNException, TooManyIterationsException {
diff --git a/src/main/java/neqsim/thermo/phase/PhaseDuanSun.java b/src/main/java/neqsim/thermo/phase/PhaseDuanSun.java
index fcc12f3039..0af4f441e5 100644
--- a/src/main/java/neqsim/thermo/phase/PhaseDuanSun.java
+++ b/src/main/java/neqsim/thermo/phase/PhaseDuanSun.java
@@ -120,6 +120,7 @@ public double getGibbsEnergy() {
     return R * temperature * numberOfMolesInPhase * (GE + Math.log(pressure));
   }
 
+  /** {@inheritDoc} */
   @Override
   public double molarVolume(double pressure, double temperature, double A, double B, PhaseType pt)
       throws IsNaNException, TooManyIterationsException {
diff --git a/src/main/java/neqsim/thermo/phase/PhaseEosInterface.java b/src/main/java/neqsim/thermo/phase/PhaseEosInterface.java
index 4420be0b23..0fbab32499 100644
--- a/src/main/java/neqsim/thermo/phase/PhaseEosInterface.java
+++ b/src/main/java/neqsim/thermo/phase/PhaseEosInterface.java
@@ -35,7 +35,7 @@ public interface PhaseEosInterface extends PhaseInterface {
    * getMixingRuleName.
    * </p>
    *
-   * @return a {@link String} object
+   * @return a {@link java.lang.String} object
    */
   public String getMixingRuleName();
 
@@ -80,7 +80,7 @@ public interface PhaseEosInterface extends PhaseInterface {
    * displayInteractionCoefficients.
    * </p>
    *
-   * @param intType a {@link String} object
+   * @param intType a {@link java.lang.String} object
    */
   public void displayInteractionCoefficients(String intType);
   // public double getA();
diff --git a/src/main/java/neqsim/thermo/phase/PhaseGENRTL.java b/src/main/java/neqsim/thermo/phase/PhaseGENRTL.java
index 9e4988603b..8bd014d5f7 100644
--- a/src/main/java/neqsim/thermo/phase/PhaseGENRTL.java
+++ b/src/main/java/neqsim/thermo/phase/PhaseGENRTL.java
@@ -45,7 +45,7 @@ public PhaseGENRTL() {
    * @param phase a {@link neqsim.thermo.phase.PhaseInterface} object
    * @param alpha an array of type double
    * @param Dij an array of type double
-   * @param mixRule an array of {@link String} objects
+   * @param mixRule an array of {@link java.lang.String} objects
    * @param intparam an array of type double
    */
   public PhaseGENRTL(PhaseInterface phase, double[][] alpha, double[][] Dij, String[][] mixRule,
@@ -133,6 +133,7 @@ public double getGibbsEnergy() {
     return R * temperature * numberOfMolesInPhase * (GE + Math.log(pressure));
   }
 
+  /** {@inheritDoc} */
   @Override
   public double molarVolume(double pressure, double temperature, double A, double B, PhaseType pt)
       throws IsNaNException, TooManyIterationsException {
diff --git a/src/main/java/neqsim/thermo/phase/PhaseGENRTLmodifiedHV.java b/src/main/java/neqsim/thermo/phase/PhaseGENRTLmodifiedHV.java
index 7117877844..6ddb386f36 100644
--- a/src/main/java/neqsim/thermo/phase/PhaseGENRTLmodifiedHV.java
+++ b/src/main/java/neqsim/thermo/phase/PhaseGENRTLmodifiedHV.java
@@ -41,7 +41,7 @@ public PhaseGENRTLmodifiedHV() {
    * @param phase a {@link neqsim.thermo.phase.PhaseInterface} object
    * @param alpha an array of type double
    * @param Dij an array of type double
-   * @param mixRule an array of {@link String} objects
+   * @param mixRule an array of {@link java.lang.String} objects
    * @param intparam an array of type double
    */
   public PhaseGENRTLmodifiedHV(PhaseInterface phase, double[][] alpha, double[][] Dij,
@@ -66,7 +66,7 @@ public PhaseGENRTLmodifiedHV(PhaseInterface phase, double[][] alpha, double[][]
    * @param alpha an array of type double
    * @param Dij an array of type double
    * @param DijT an array of type double
-   * @param mixRule an array of {@link String} objects
+   * @param mixRule an array of {@link java.lang.String} objects
    * @param intparam an array of type double
    */
   public PhaseGENRTLmodifiedHV(PhaseInterface phase, double[][] alpha, double[][] Dij,
diff --git a/src/main/java/neqsim/thermo/phase/PhaseGENRTLmodifiedWS.java b/src/main/java/neqsim/thermo/phase/PhaseGENRTLmodifiedWS.java
index 5793df3913..5d0704d8bb 100644
--- a/src/main/java/neqsim/thermo/phase/PhaseGENRTLmodifiedWS.java
+++ b/src/main/java/neqsim/thermo/phase/PhaseGENRTLmodifiedWS.java
@@ -31,7 +31,7 @@ public PhaseGENRTLmodifiedWS() {
    * @param phase a {@link neqsim.thermo.phase.PhaseInterface} object
    * @param alpha an array of type double
    * @param Dij an array of type double
-   * @param mixRule an array of {@link String} objects
+   * @param mixRule an array of {@link java.lang.String} objects
    * @param intparam an array of type double
    */
   public PhaseGENRTLmodifiedWS(PhaseInterface phase, double[][] alpha, double[][] Dij,
@@ -56,7 +56,7 @@ public PhaseGENRTLmodifiedWS(PhaseInterface phase, double[][] alpha, double[][]
    * @param alpha an array of type double
    * @param Dij an array of type double
    * @param DijT an array of type double
-   * @param mixRule an array of {@link String} objects
+   * @param mixRule an array of {@link java.lang.String} objects
    * @param intparam an array of type double
    */
   public PhaseGENRTLmodifiedWS(PhaseInterface phase, double[][] alpha, double[][] Dij,
diff --git a/src/main/java/neqsim/thermo/phase/PhaseGEUnifac.java b/src/main/java/neqsim/thermo/phase/PhaseGEUnifac.java
index 84200acb19..8275d73433 100644
--- a/src/main/java/neqsim/thermo/phase/PhaseGEUnifac.java
+++ b/src/main/java/neqsim/thermo/phase/PhaseGEUnifac.java
@@ -44,7 +44,7 @@ public PhaseGEUnifac() {
    * @param phase a {@link neqsim.thermo.phase.PhaseInterface} object
    * @param alpha an array of type double
    * @param Dij an array of type double
-   * @param mixRule an array of {@link String} objects
+   * @param mixRule an array of {@link java.lang.String} objects
    * @param intparam an array of type double
    */
   public PhaseGEUnifac(PhaseInterface phase, double[][] alpha, double[][] Dij, String[][] mixRule,
diff --git a/src/main/java/neqsim/thermo/phase/PhaseGEUnifacPSRK.java b/src/main/java/neqsim/thermo/phase/PhaseGEUnifacPSRK.java
index 4a9f2ac1c9..9629aa678e 100644
--- a/src/main/java/neqsim/thermo/phase/PhaseGEUnifacPSRK.java
+++ b/src/main/java/neqsim/thermo/phase/PhaseGEUnifacPSRK.java
@@ -37,7 +37,7 @@ public PhaseGEUnifacPSRK() {
    * @param phase a {@link neqsim.thermo.phase.PhaseInterface} object
    * @param alpha an array of type double
    * @param Dij an array of type double
-   * @param mixRule an array of {@link String} objects
+   * @param mixRule an array of {@link java.lang.String} objects
    * @param intparam an array of type double
    */
   public PhaseGEUnifacPSRK(PhaseInterface phase, double[][] alpha, double[][] Dij,
diff --git a/src/main/java/neqsim/thermo/phase/PhaseGEUnifacUMRPRU.java b/src/main/java/neqsim/thermo/phase/PhaseGEUnifacUMRPRU.java
index 06e2b87775..1c99290b90 100644
--- a/src/main/java/neqsim/thermo/phase/PhaseGEUnifacUMRPRU.java
+++ b/src/main/java/neqsim/thermo/phase/PhaseGEUnifacUMRPRU.java
@@ -44,7 +44,7 @@ public PhaseGEUnifacUMRPRU() {
    * @param phase a {@link neqsim.thermo.phase.PhaseInterface} object
    * @param alpha an array of type double
    * @param Dij an array of type double
-   * @param mixRule an array of {@link String} objects
+   * @param mixRule an array of {@link java.lang.String} objects
    * @param intparam an array of type double
    */
   public PhaseGEUnifacUMRPRU(PhaseInterface phase, double[][] alpha, double[][] Dij,
@@ -82,10 +82,20 @@ public void calcCommontemp(PhaseInterface phase, int numberOfComponents, double
     }
   }
 
+  /**
+   * <p>getVCommontemp.</p>
+   *
+   * @return a double
+   */
   public double getVCommontemp() {
     return VCommontemp;
   }
 
+  /**
+   * <p>getFCommontemp.</p>
+   *
+   * @return a double
+   */
   public double getFCommontemp() {
     return FCommontemp;
   }
@@ -163,7 +173,7 @@ public void initQmixdN() {
    * getQmix.
    * </p>
    *
-   * @param name a {@link String} object
+   * @param name a {@link java.lang.String} object
    * @return a double
    */
   public double getQmix(String name) {
@@ -181,7 +191,7 @@ public double getQmix(String name) {
    * getQmixdN.
    * </p>
    *
-   * @param name a {@link String} object
+   * @param name a {@link java.lang.String} object
    * @return an array of type double
    */
   public double[] getQmixdN(String name) {
diff --git a/src/main/java/neqsim/thermo/phase/PhaseGEUniquac.java b/src/main/java/neqsim/thermo/phase/PhaseGEUniquac.java
index ba4ae00b17..ce2b236542 100644
--- a/src/main/java/neqsim/thermo/phase/PhaseGEUniquac.java
+++ b/src/main/java/neqsim/thermo/phase/PhaseGEUniquac.java
@@ -47,7 +47,7 @@ public PhaseGEUniquac() {
    * @param phase a {@link neqsim.thermo.phase.PhaseInterface} object
    * @param alpha an array of type double
    * @param Dij an array of type double
-   * @param mixRule an array of {@link String} objects
+   * @param mixRule an array of {@link java.lang.String} objects
    * @param intparam an array of type double
    */
   public PhaseGEUniquac(PhaseInterface phase, double[][] alpha, double[][] Dij, String[][] mixRule,
@@ -120,6 +120,7 @@ public double getExcessGibbsEnergy(PhaseInterface phase, int numberOfComponents,
     return R * temperature * numberOfMolesInPhase * GE;
   }
 
+  /** {@inheritDoc} */
   @Override
   public double molarVolume(double pressure, double temperature, double A, double B, PhaseType pt)
       throws IsNaNException, TooManyIterationsException {
diff --git a/src/main/java/neqsim/thermo/phase/PhaseGEWilson.java b/src/main/java/neqsim/thermo/phase/PhaseGEWilson.java
index 9c104d2ca3..d79b79a1ea 100644
--- a/src/main/java/neqsim/thermo/phase/PhaseGEWilson.java
+++ b/src/main/java/neqsim/thermo/phase/PhaseGEWilson.java
@@ -36,7 +36,7 @@ public PhaseGEWilson() {
    * @param phase a {@link neqsim.thermo.phase.PhaseInterface} object
    * @param alpha an array of type double
    * @param Dij an array of type double
-   * @param mixRule an array of {@link String} objects
+   * @param mixRule an array of {@link java.lang.String} objects
    * @param intparam an array of type double
    */
   public PhaseGEWilson(PhaseInterface phase, double[][] alpha, double[][] Dij, String[][] mixRule,
@@ -110,6 +110,7 @@ public double getExcessGibbsEnergy(PhaseInterface phase, int numberOfComponents,
     return R * temperature * numberOfMolesInPhase * GE;
   }
 
+  /** {@inheritDoc} */
   @Override
   public double molarVolume(double pressure, double temperature, double A, double B, PhaseType pt)
       throws IsNaNException, TooManyIterationsException {
diff --git a/src/main/java/neqsim/thermo/phase/PhaseHydrate.java b/src/main/java/neqsim/thermo/phase/PhaseHydrate.java
index e8a2f83aa6..e49a1ddefd 100644
--- a/src/main/java/neqsim/thermo/phase/PhaseHydrate.java
+++ b/src/main/java/neqsim/thermo/phase/PhaseHydrate.java
@@ -36,7 +36,7 @@ public PhaseHydrate() {
    * Constructor for PhaseHydrate.
    * </p>
    *
-   * @param fluidModel a {@link String} object
+   * @param fluidModel a {@link java.lang.String} object
    */
   public PhaseHydrate(String fluidModel) {
     if (fluidModel.isEmpty()) {
diff --git a/src/main/java/neqsim/thermo/phase/PhaseInterface.java b/src/main/java/neqsim/thermo/phase/PhaseInterface.java
index a19a7ec570..c2861712b0 100644
--- a/src/main/java/neqsim/thermo/phase/PhaseInterface.java
+++ b/src/main/java/neqsim/thermo/phase/PhaseInterface.java
@@ -260,7 +260,7 @@ public void init(double totalNumberOfMoles, int numberOfComponents, int initType
    * initPhysicalProperties.
    * </p>
    *
-   * @param type a {@link String} object
+   * @param type a {@link java.lang.String} object
    */
   public void initPhysicalProperties(String type);
 
@@ -452,7 +452,7 @@ public void init(double totalNumberOfMoles, int numberOfComponents, int initType
    * getFugacity.
    * </p>
    *
-   * @param compName a {@link String} object
+   * @param compName a {@link java.lang.String} object
    * @return a double
    */
   public double getFugacity(String compName);
@@ -608,7 +608,7 @@ public void init(double totalNumberOfMoles, int numberOfComponents, int initType
    * getWtFrac.
    * </p>
    *
-   * @param componentName a {@link String} object
+   * @param componentName a {@link java.lang.String} object
    * @return a double
    */
   public double getWtFrac(String componentName);
@@ -618,7 +618,7 @@ public void init(double totalNumberOfMoles, int numberOfComponents, int initType
    * setMixingRuleGEModel.
    * </p>
    *
-   * @param name a {@link String} object
+   * @param name a {@link java.lang.String} object
    */
   public void setMixingRuleGEModel(String name);
 
@@ -1846,7 +1846,7 @@ public default void addMolesChemReac(int component, double dn) {
    * @param alpha an array of type double
    * @param Dij an array of type double
    * @param DijT an array of type double
-   * @param mixRule an array of {@link String} objects
+   * @param mixRule an array of {@link java.lang.String} objects
    * @param intparam an array of type double
    */
   public void setParams(PhaseInterface phase, double[][] alpha, double[][] Dij, double[][] DijT,
@@ -1871,7 +1871,7 @@ public void setParams(PhaseInterface phase, double[][] alpha, double[][] Dij, do
    * Getter for property phaseTypeName.
    * </p>
    *
-   * @return a {@link String} object
+   * @return a {@link java.lang.String} object
    */
   public default String getPhaseTypeName() {
     return getType().getDesc();
@@ -1882,7 +1882,7 @@ public default String getPhaseTypeName() {
    * Setter for property phaseTypeName.
    * </p>
    *
-   * @param phaseTypeName a {@link String} object
+   * @param phaseTypeName a {@link java.lang.String} object
    */
   public default void setPhaseTypeName(String phaseTypeName) {
     setType(PhaseType.byDesc(phaseTypeName));
diff --git a/src/main/java/neqsim/thermo/phase/PhasePrEosvolcor.java b/src/main/java/neqsim/thermo/phase/PhasePrEosvolcor.java
index 71524fa028..02641bde54 100644
--- a/src/main/java/neqsim/thermo/phase/PhasePrEosvolcor.java
+++ b/src/main/java/neqsim/thermo/phase/PhasePrEosvolcor.java
@@ -296,13 +296,7 @@ public double gVV() {
     // return -1.0 / (val2 * val2) + 1.0 / (val1 * val1);
   }
 
-  /**
-   * <p>
-   * gVVV.
-   * </p>
-   *
-   * @return a double
-   */
+  /** {@inheritDoc} */
   @Override
   public double gVVV() {
     double val1 = numberOfMolesInPhase * getMolarVolume();
@@ -332,13 +326,7 @@ public double fVV() {
     // return 1.0 / (R * loc_B * (delta1 - delta2)) * (-1.0 / (val1 * val1) + 1.0 / (val2 * val2));
   }
 
-  /**
-   * <p>
-   * fVVV.
-   * </p>
-   *
-   * @return a double
-   */
+  /** {@inheritDoc} */
   @Override
   public double fVVV() {
     double val1 = numberOfMolesInPhase * molarVolume + getB() * delta1 + getC();
diff --git a/src/main/java/neqsim/thermo/phase/PhaseType.java b/src/main/java/neqsim/thermo/phase/PhaseType.java
index e00b3781fa..82d8171713 100644
--- a/src/main/java/neqsim/thermo/phase/PhaseType.java
+++ b/src/main/java/neqsim/thermo/phase/PhaseType.java
@@ -5,6 +5,8 @@
 
 /**
  * Types of phases.
+ *
+ * @author ASMF
  */
 public enum PhaseType implements Serializable {
   LIQUID("liquid", 0), GAS("gas", 1), OIL("oil", 2), AQUEOUS("aqueous", 3), HYDRATE("hydrate",
diff --git a/src/main/java/neqsim/thermo/phase/StateOfMatter.java b/src/main/java/neqsim/thermo/phase/StateOfMatter.java
index ccf16bd1ab..8ce4150c92 100644
--- a/src/main/java/neqsim/thermo/phase/StateOfMatter.java
+++ b/src/main/java/neqsim/thermo/phase/StateOfMatter.java
@@ -2,6 +2,8 @@
 
 /**
  * States of matter, a way of relating the PhaseTypes to classical states of matter.
+ *
+ * @author ASMF
  */
 public enum StateOfMatter {
   GAS, LIQUID, SOLID;
diff --git a/src/main/java/neqsim/thermo/system/SystemInterface.java b/src/main/java/neqsim/thermo/system/SystemInterface.java
index 90daf4d133..4db3307a74 100644
--- a/src/main/java/neqsim/thermo/system/SystemInterface.java
+++ b/src/main/java/neqsim/thermo/system/SystemInterface.java
@@ -1129,7 +1129,6 @@ public default double getGamma2() {
    * method to return molar volume of the fluid: eventual volume correction included.
    *
    * @param unit Supported units are m3/mol, litre/mol
-   *
    * @return molar volume volume in unit
    */
   public double getMolarVolume(String unit);
@@ -2580,30 +2579,37 @@ public void setImplementedTemperatureDeriativesofFugacity(
 
   /**
    * <p>
-   * getKvector - return vector of equilibrium constants
+   * getKvector - return vector of equilibrium constants.
    * </p>
+   *
+   * @return an array of {@link double} objects
    */
   public double[] getKvector();
 
   /**
    * <p>
-   * getzvector - return vector of total molar composition
+   * getzvector - return vector of total molar composition.
    * </p>
+   *
+   * @return an array of {@link double} objects
    */
   public double[] getzvector();
 
   /**
    * <p>
-   * toJson - return String with json inormation of fluid
+   * toJson - return String with json inormation of fluid.
    * </p>
+   *
+   * @return a {@link java.lang.String} object
    */
   public String toJson();
 
   /**
    * <p>
-   * toCompJson - return String with json inormation of pure component properties of fluid
+   * toCompJson - return String with json inormation of pure component properties of fluid.
    * </p>
+   *
+   * @return a {@link java.lang.String} object
    */
   public String toCompJson();
-
 }
diff --git a/src/main/java/neqsim/thermo/system/SystemThermo.java b/src/main/java/neqsim/thermo/system/SystemThermo.java
index f570c4a78a..1b37514249 100644
--- a/src/main/java/neqsim/thermo/system/SystemThermo.java
+++ b/src/main/java/neqsim/thermo/system/SystemThermo.java
@@ -32,6 +32,8 @@
 
 /**
  * This is the base class of the System classes.
+ *
+ * @author Even Solbraa
  */
 public abstract class SystemThermo implements SystemInterface {
   /** Logger object for class. */
@@ -3074,12 +3076,7 @@ public double getZvolcorr() {
         / getTemperature() / getDensity("kg/m3");
   }
 
-  /**
-   * Verify if system has a phase of a specific type.
-   *
-   * @param pt PhaseType to look for.
-   * @return True if system contains a phase of requested type.
-   */
+  /** {@inheritDoc} */
   @Override
   public boolean hasPhaseType(PhaseType pt) {
     for (int i = 0; i < numberOfPhases; i++) {