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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 35991] New: - Unable to generate method that returns an array of integers
Date Wed, 03 Aug 2005 07:08:14 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=35991

           Summary: Unable to generate method that returns an array of
                    integers
           Product: BCEL
           Version: 5.1
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Main
        AssignedTo: bcel-dev@jakarta.apache.org
        ReportedBy: cavengene@yahoo.de


I'm trying to generate the following code use BCEL:

package bci;

public class Test {

  public int[] getArray() {
    return new int[1];
  }

  public static void main(String[] args) {
  }
}

I use BCELIfier to generate the code that creates Test. The snippet that creates getArray
is

  private void createMethod_2() {
    InstructionList il = new InstructionList();
    MethodGen method = new MethodGen(ACC_PUBLIC, new ArrayType(T_INT, 1), Type.NO_ARGS, new

String[] {  }, "getArray", "bci.Test", il, _cp);

    InstructionHandle ih_0 = il.append(new PUSH(_cp, 1));
    il.append(_factory.createNewArray(new ArrayType(T_INT, 1), (short) 1));
    InstructionHandle ih_3 = il.append(_factory.createReturn(Type.OBJECT));
    method.setMaxStack();
    method.setMaxLocals();
    _cg.addMethod(method.getMethod());
    il.dispose();
  }

I run TestCreator (generated by BCELIfier) and execute Test, which triggers the following
error:

Exception in thread "main" java.lang.VerifyError: (class: bci/Test, method: getArray signature:
()[I) 
Wrong return type in function

If I return null rather than the array, everything is perfectly allright.

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