The following class compiles OK with fastjavac (and jikes and javac)
A runtime error is throwed only if compiled with fastjavac...


public class CompilerBugTwo
{
    public static void main (String[] args) throws Exception
    {
        Class c = Toto.class.getDeclaringClass();
        System.err.println (c);
    }
}

class Toto
{
    private void set (Node node)
    {
        node.children[0] = new Node ();
    }

    private static class Node
    {
        private Node[] children;

        private Node ()
        {
        }
    }
}


The stack trace:

java.lang.ClassFormatError: Toto$1 (Bad superclass index)
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
        at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
        at java.lang.Class.getDeclaringClass(Native Method)
        at CompilerBugTwo.main(CompilerBugTwo.java:8)