Re: [Jikesrvm-core] kawa and rhino

[David P G. <gr...@us...>]

      The method VM_DynamicTypeCheck.instanceof was not prepared for the
lhs type to be a primitive (I got a similar stackdump just now on a little
test case).  (We'd forgotten that VM_DynamicTypeCheck.instanceof could be
called via reflective code with arbitrary left hand side types).  I just
checked in a one line change to VM_DynamicTypeCheck that fixes my test
case; hopefully it will fix your problem too.  The change is the addition
of the test for LHSDimension being less than 0.

--dave


  /**
   * RHSType is resolved.
   *   Can we store an object of type RHSType in a variable of type
LHSType?
   *
   * @param LHSType the left-hand-side type
   * @param RHSType the right-hand-size type
   * @return <code>true</code> if we can store an object of
   *         RHSType into a variable of type LSType
   *         or <code>false</code> if we cannot.
   */
  static boolean instanceOf (VM_Type LHSType, VM_Type RHSType)
    throws VM_ResolutionException {
    if (LHSType == RHSType) return true;
    if (!LHSType.isResolved()) {
      synchronized(VM_ClassLoader.lock) {
      LHSType.load();
      LHSType.resolve();
      }
    }
    int LHSDimension = LHSType.getDimensionality();
    if (LHSDimension == 0) return instanceOfResolved(LHSType.asClass(),

RHSType.getTypeInformationBlock());
    if (LHSDimension < 0) return false;
    VM_Type LHSInnermostElementType = LHSType.asArray
().getInnermostElementType();
    if (LHSInnermostElementType == VM_Type.JavaLangObjectType){
      return instanceOfObjectArray(LHSDimension, RHSType);
    } else if (!LHSInnermostElementType.isPrimitiveType()) {
      return instanceOfArray(LHSInnermostElementType.asClass(),
                             LHSDimension, RHSType);
    } else {
      return false;
    }
  }



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  |       Subject:  [Jikesrvm-core] kawa and rhino                                          |
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I modified the rvmrt.jar library to use the pure-java BigInteger classes
that
are in Classpath.

With that I managed to run simple tests of the kawa scheme interpreter and
the
rhino ecmascript (javascript) interpreter.

I couldn't run beanshell, I don't know if this stacktrace is useful:

(This is just the top of the stack trace, I can investigate further if
necessary).

I'm using v2.0.0, i686-linux-gnu, with a BaseBaseSemispace build.

bapli% /mnt/20gig/home/jleuner/dev/jrvm2/build/JikesRVM -X:h=25 -cp
~/downloads/bsh-1.2b1.jar bsh.Interpreter
vm: booting
vm internal error at:

-- Stack --
   LVM; sysFail(Ljava/lang/String;)V at line 372
   LVM; _assertionFailure(Ljava/lang/String;)V at line 264
   LVM; assert(ZLjava/lang/String;)V at line 257
   LVM; assert(Z)V at line 240
   LVM_Type; asArray()LVM_Array; at line 88
   LVM_DynamicTypeCheck; instanceOf(LVM_Type;LVM_Type;)Z at line 454
   LVM_Runtime; isAssignableWith(LVM_Type;LVM_Type;)Z at line 169
   Ljava/lang/Class; isAssignableFrom(Ljava/lang/Class;)Z at line 953
   Lbsh/Reflect; isAssignableFrom(Ljava/lang/Class;Ljava/lang/Class;)Z at
line 847
   Lbsh/Reflect; isAssignable([Ljava/lang/Class;[Ljava/lang/Class;)Z at
line 797
   Lbsh/Reflect;
findMostSpecificSignature([Ljava/lang/Class;[[Ljava/lang/Class;)I at line
742
   Lbsh/Reflect;
findMostSpecificMethod(Ljava/lang/String;[Ljava/lang/Class;[Ljava/lang/reflect/Method;)Ljava/lang/reflect/Method;

at line 623
   Lbsh/Reflect;
invokeMethod(Ljava/lang/Class;Ljava/lang/Object;Ljava/lang/String;[Ljava/lang/Object;Z)Ljava/lang/Object;

at line 331
   Lbsh/Reflect;
invokeStaticMethod(Ljava/lang/Class;Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/Object;

at line 92
   Lbsh/Name;
invokeMethod(Lbsh/Interpreter;[Ljava/lang/Object;Lbsh/CallStack;Lbsh/SimpleNode;)Ljava/lang/Object;

at line 696


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