Hello Friends,
I have an
junit testcase that tests a eclipse application with a very long classpath and this can't be executed in Eclipse because of Windows classpath limitations. So I decided to write a program that will execute the the JUnit
Test. I create my own classloader that takes the long classpath as url and then from the classpath create "org.junit.runner.JUnitCore" and create a new instance from this class. I can load the class without any problem but as soon as I try to instantiate an object of this class I get a NoClassDefFoundError. Here is the code:
This is the
thread class which uses the custom class loader I created:
Output of the code:
UCL:java.net.URLClassLoader@72093dcd
Loaded class : org.junit.runner.JUnitCore
jar:file:/C:/maven.repo/sasurendran/ebox/junit/junit/4.11/junit-4.11.jar!/org/junit/runner/JUnitCore.class
Exception in thread "Thread-0" java.lang.NoClassDefFoundError: org/junit/runner/JUnitCore
at test.com.ebay.app.rtm.biz.JUnitThread.run(JUnitThread.java:25)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ClassNotFoundException: org.junit.runner.JUnitCore
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 2 more
As you can see the ClassLoader is able to find the class but not able to instantiate it from jar file 'jar:file:/C:/maven.repo/sasurendran/ebox/junit/junit/4.11/junit-4.11.jar' but not able to create a newInstance of it. Could you please help me?