###@###.### 2004-01-30

J2SE Version (please include all output from java -version flag):
 java version "1.5.0-beta"
 Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b32)
 Java HotSpot(TM) Client VM (build 1.5.0-beta-b32, mixed mode)

Does this problem occur on J2SE 1.3, 1.4 or 1.4.1? Yes / No (pick one)
 No, works fine with 1.4.2

Bug Description:
  Customer has some code that generates classes on the fly, and loads them
  (its a compiler for a scripting language).

  It works fine in JDK 1.4.2, but in 1.5.0, when it tries to load the
  newly generated class, it throws errors like the following:

java.lang.NoClassDefFoundError: IllegalName: factor/compiler/write__143
        at java.lang.ClassLoader.preDefineClass(ClassLoader.java:459)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:598)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:448)
        at factor.FactorWordDefinition$SimpleClassLoader._defineClass(FactorWordDefinition.java:257)
        at factor.FactorWordDefinition.compile(FactorWordDefinition.java:194)
        at factor.FactorWord.compile(FactorWord.java:74)
        at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:494)
        at factor.FactorJava.jinvoke(FactorJava.java:439)
        at factor.FactorPrimitive$P_jinvoke.eval(FactorPrimitive.java:365)
        at factor.FactorInterpreter.eval(FactorInterpreter.java:329)
        at factor.FactorInterpreter.run(FactorInterpreter.java:189)
        at factor.FactorInterpreter.runBootstrap(FactorInterpreter.java:150)
        at factor.FactorInterpreter.init(FactorInterpreter.java:118)
        at factor.FactorInterpreter.main(FactorInterpreter.java:76)

Step to Reproduce:
  Hard to get a narrow down test case. just attached a zip file which
  contains 143 automatically generated classes. They all work fine with
  1.4.2, but in 1.5 they all fail to load with an error; check the above
  stack traces.


###@###.### 2004-02-03

Test case attached - ASMTest.jar.

run java ASMTest and get the following error:

Exception in thread "main" java.lang.NoClassDefFoundError: IllegalName: foo/bar/baz/quux
        at java.lang.ClassLoader.preDefineClass(ClassLoader.java:459)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:598)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:448)
        at ASMTest$SimpleClassLoader._defineClass(ASMTest.java:46)
        at ASMTest.main(ASMTest.java:30)


but, works fine with 1.4.2.