TomcatInstrumentableClassLoader causes classpath to break

[cjntaylor]

If i use a basic context.xml, defined as follows:

<?xml version="1.0" encoding="UTF-8"?>
<Context>
    <Loader loaderClass="org.springframework.instrument.classloading.tomcat.TomcatInstrumentableClassLoader" />
</Context>

The plugin no longer works, reporting that it cannot find org.apache.jasper.servlet.JspServlet I've added the dependency "org.springframework:spring-instrument-tomcat:3.1.2.RELEASE" to the tomcat configuration in my build.gradle, and as far as I can tell, embedded tomcat is finding this class. However, something seems to be broken with classpath delegation, because it can't find the other classes defined by the tomcat configuration.

Any ideas?

[bmuschko]

I guess this class does something with the way classloading works? I found this post with a similar issue. Apparently, they fixed it by setting useSystemClassLoaderAsParent to false. However, this method only seems to exist in Tomcat 5.x. Does this post help you in any kind of form?

• What version of Tomcat are you using?
• Do you have a sample project on GitHub that I could try to reproduce the issue with?

[bmuschko]

You never responded to this issue. Are you still interested in this? If not, I am going to close the issue.

[bmuschko]

Same issue as #83. Closing this one as it is a duplicated and you never responded.