BZ #56: java.lang.ClassCastException: java/lang/NoClassDefFoundError when trying to run a JUnit test directly

Status fields:

creation_ts:2008-03-26 11:45
component:vm
version:default branch
rep_platform:All
op_sys:Linux
bug_status:RESOLVED
resolution:FIXED
reporter:twisti@complang.tuwien.ac.at 
Although the invocation is wrong, there is a bug:

tests/regression/bugzilla$ cacao PR52
Exception in thread "main" java.lang.NoClassDefFoundError:
java/lang/NoClassDefFoundError
Caused by: java.lang.ClassCastException: java/lang/NoClassDefFoundError
        at java.net.URLClassLoader.findClass(URLClassLoader.java:222)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)

Comment #1 by twisti@complang.tuwien.ac.at on 2008-03-26 11:53:40

The problem is at src/vm/resolve.c:184.  We convert the ClassNotFoundException to a
NoClassDefFoundError, which is wrong here.

Removing the conversion generates a (mostly) correct stacktrace, but I think we have to
add it somewhere else:

tests/regression/bugzilla$ cacao PR52
Exception in thread "main" java.lang.NoClassDefFoundError: junit.framework.TestCase
Caused by: java.lang.ClassNotFoundException: junit.framework.TestCase
        at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:637)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
        at java.net.URLClassLoader.access$000(URLClassLoader.java:73)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:212)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)

The correct stacktrace would be:

tests/regression/bugzilla$ java PR55
Exception in thread "main" java.lang.NoClassDefFoundError: junit/framework/TestCase
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:637)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
        at java.net.URLClassLoader.access$000(URLClassLoader.java:73)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:212)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
Caused by: java.lang.ClassNotFoundException: junit.framework.TestCase
        at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
        ... 12 more

Comment #2 by twisti@complang.tuwien.ac.at on 2008-03-27 09:15:19

Bug 58 fixes this ones.