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Erwan,
On 9/19/16 11:36 AM, Erwan Cancouet wrote:
> Hi,
>
> i'm using Tomcat 7.0.70 on ubuntu 15.10.
>
> I have created a SampleClassLoader :
>
> package com.axway.tnt.compliance;
>
> import org.apache.catalina.loader.WebappClassLoader;
>
> import java.io.File; import java.io.IOException;
>
> public class SampleClassLoader extends WebappClassLoader { public
> SampleClassLoader() { super(); }
>
> public SampleClassLoader(final ClassLoader parent) {
> super(parent); }
>
> @Override protected boolean validateJarFile(final File file) throws
> IOException { System.out.println("---Load: " +
> file.getName()); return super.validateJarFile(file); } }
>
> I have put it in a jar in ../apache-tomcat/lib
>
> I have a webapp : apache-tomcat/lwebapps/sample
>
> I have modified apache-tomcat/lwebapps/sample/meta-inf/context.xml
> to use this classloader :
>
>
>
>
>
> WEB-INF/web.xml
>
> delegate="true"
> loaderClass="com.axway.tnt.compliance.SampleClassLoader"/>
>
>
>
>
> And it's working fine.
>
> But i don't want to modify my tomcat, i want to put my classloader
> in my webapp/lib and in this case i have :
>
>
> java.lang.ClassNotFoundException:
> com.axway.tnt.compliance.SampleClassLoader at
> java.net.URLClassLoader.findClass(URLClassLoader.java:381) at
> java.lang.ClassLoader.loadClass(ClassLoader.java:424) at
> java.lang.ClassLoader.loadClass(ClassLoader.java:357) at
> org.apache.catalina.loader.WebappLoader.createClassLoader(WebappLoader
.java:723)
>
>
at
org.apache.catalina.loader.WebappLoader.startInternal(WebappLoader.java:
582)
> Caused by: org.apache.catalina.LifecycleException: Failed to start
> component [WebappLoader[/sample]] at
> org.apache.catalina.loader.WebappLoader.startInternal(WebappLoader.jav
a:632)
>
>
Caused by: java.lang.ClassNotFoundException:
com.axway.tnt.compliance.SampleClassLoader
> at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at
> java.lang.ClassLoader.loadClass(ClassLoader.java:424) at
> java.lang.ClassLoader.loadClass(ClassLoader.java:357) at
> org.apache.catalina.loader.WebappLoader.createClassLoader(WebappLoader
.java:723)
>
>
at
org.apache.catalina.loader.WebappLoader.startInternal(WebappLoader.java:
582)
>
>
> Any idea to do that ?
Sorry, this is not possible, because otherwise your SampleClassLoader
would have to load itself. You will have to package your custom
ClassLoader and install it into Tomcat's lib/ directory.
- -chris
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