Examples of org.apache.bcel.classfile.Constant

org.apache.bcel.classfile.Constant
Abstract superclass for classes to represent the different constant types in the constant pool of a class file. The classes keep closely to the JVM specification. @version $Id: Constant.java 386056 2006-03-15 11:31:56Z tcurdt $ @author M. Dahm

   * Ensures the specific preconditions of the said instruction.
   */
  public void visitLDC(LDC o){
    // visitCPInstruction is called first.
    
    Constant c = cpg.getConstant(o.getIndex());
    if   (!  (  ( c instanceof ConstantInteger) ||
              ( c instanceof ConstantFloat  )  ||
              ( c instanceof ConstantString )  )  ){
      constraintViolated(o, "Referenced constant should be a CONSTANT_Integer, a CONSTANT_Float or a CONSTANT_String, but is '"+c+"'.");
    }

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   * Ensures the specific preconditions of the said instruction.
   */
  public void visitLDC_W(LDC_W o){
    // visitCPInstruction is called first.
    
    Constant c = cpg.getConstant(o.getIndex());
    if   (!  (  ( c instanceof ConstantInteger) ||
              ( c instanceof ConstantFloat  )  ||
              ( c instanceof ConstantString )  )  ){
      constraintViolated(o, "Referenced constant should be a CONSTANT_Integer, a CONSTANT_Float or a CONSTANT_String, but is '"+c+"'.");
    }

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   * Ensures the specific preconditions of the said instruction.
   */
  public void visitLDC2_W(LDC2_W o){
    // visitCPInstruction is called first.
    
    Constant c = cpg.getConstant(o.getIndex());
    if   (!  (  ( c instanceof ConstantLong) ||
              ( c instanceof ConstantDouble )  )  ){
      constraintViolated(o, "Referenced constant should be a CONSTANT_Integer, a CONSTANT_Float or a CONSTANT_String, but is '"+c+"'.");
    }
  }

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        // which could be resources we want to track.
        // If we don't find any such classes, we skip analyzing
        // the class. (Note: could do this by method.)
        boolean sawResourceClass = false;
        for (int i = 0; i < jclass.getConstantPool().getLength(); ++i) {
            Constant constant = jclass.getConstantPool().getConstant(i);
            String className = null;
            if (constant instanceof ConstantMethodref) {
                ConstantMethodref cmr = (ConstantMethodref) constant;


                int classIndex = cmr.getClassIndex();

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    public void visit(JavaClass obj) {
        compute();
        ConstantPool cp = obj.getConstantPool();
        Constant[] constants = cp.getConstantPool();
        checkConstant: for (int i = 0; i < constants.length; i++) {
            Constant co = constants[i];
            if (co instanceof ConstantDouble || co instanceof ConstantLong) {
                i++;
            }
            if (co instanceof ConstantClass) {
                String ref = getClassName(obj, i);

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    public void visit(Field field) {
        ConstantValue value = field.getConstantValue();
        if (value == null) {
            return;
        }
        Constant c = getConstantPool().getConstant(value.getConstantValueIndex());


        if (testingEnabled && c instanceof ConstantLong && ((ConstantLong)c).getBytes() == MICROS_PER_DAY_OVERFLOWED_AS_INT) {
            bugReporter.reportBug( new BugInstance(this, "TESTING", HIGH_PRIORITY).addClass(this).addField(this)
                    .addString("Did you mean MICROS_PER_DAY")
                    .addInt(MICROS_PER_DAY_OVERFLOWED_AS_INT)

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            previousMethodCall = null;
        }




        if (seen == LDC || seen == LDC_W || seen == LDC2_W) {
            Constant c = getConstantRefOperand();
            if (testingEnabled && (c instanceof ConstantInteger && ((ConstantInteger) c).getBytes() == MICROS_PER_DAY_OVERFLOWED_AS_INT
                    || c instanceof ConstantLong && ((ConstantLong) c).getBytes() == MICROS_PER_DAY_OVERFLOWED_AS_INT)) {
                BugInstance bug = new BugInstance(this, "TESTING", HIGH_PRIORITY).addClassAndMethod(this)
                        .addString("Did you mean MICROS_PER_DAY").addInt(MICROS_PER_DAY_OVERFLOWED_AS_INT)
                        .describe(IntAnnotation.INT_VALUE);

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                    continue;
                }
                int catchTypeIndex = handler.getCatchType();
                if (catchTypeIndex > 0) {
                    ConstantPool cp = getThisClass().getConstantPool();
                    Constant constant = cp.getConstant(catchTypeIndex);
                    if (constant instanceof ConstantClass) {
                        String exClassName = (String) ((ConstantClass) constant).getConstantValue(cp);
                        if (exClassName.equals("java/lang/OutOfMemoryError")) {
                            outOfMemoryHandler = true;
                            break;

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            return;
        }


        switch (seen) {
        case LDC:
            Constant constantValue = getConstantRefOperand();
            if (constantValue instanceof ConstantClass) {
                sawGetClass = -100;
            } else if (constantValue instanceof ConstantString) {
                stringConstant = ((ConstantString) constantValue).getBytes(getConstantPool());
            }

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        if ((monitorCount > 0) || (!writingField)) {
            return;
        }


        ConstantFieldref fieldRef;
        Constant c = getConstantRefOperand();
        if (c instanceof ConstantFieldref) {
            fieldRef = (ConstantFieldref) c;


            String className = fieldRef.getClass(getConstantPool()).replace('.', '/');
            if (className.equals(this.getClassName())) {

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