Program: 61604
Project: 61604
Buggy source:
/** 
 * Return true if the CtElement is valid according to a set of variables (the context). In this case valid means all variables referenced by the expression can be REPLACED by one from  the context.  It not take in account the variable names. Only types
 * @param varContext
 * @param element
 * @return
 */
@SuppressWarnings("String_Node_Str") public static boolean fitInPlace(List<CtVariable> varContext,CtElement element){
  if (element == null)   return true;
  if (element instanceof CtVariableAccess) {
    return matchVariable(varContext,(CtVariableAccess)element);
  }
  if (element instanceof CtReturn<?>) {
    return fitInPlace(varContext,((CtReturn)element).getReturnedExpression());
  }
  if (element instanceof CtInvocation) {
    CtInvocation inv=(CtInvocation)element;
    CtExpression target=inv.getTarget();
    boolean fitTarget=true;
    if (target != null) {
      fitTarget=fitInPlace(varContext,target);
    }
    List<CtExpression> args=inv.getArguments();
    for (int i=0; fitTarget && i < args.size(); i++) {
      fitTarget=fitInPlace(varContext,args.get(i));
    }
    return fitTarget;
  }
  if (element instanceof CtConstructorCall) {
    CtConstructorCall ccall=(CtConstructorCall)element;
    boolean fitTarget=true;
    List<CtExpression> args=ccall.getArguments();
    for (int i=0; fitTarget && i < args.size(); i++) {
      fitTarget=fitInPlace(varContext,args.get(i));
    }
    return fitTarget;
  }
  if (element instanceof CtAssignment) {
    CtAssignment assig=(CtAssignment)element;
    CtExpression expleft=assig.getAssigned();
    CtExpression expright=assig.getAssignment();
    return fitInPlace(varContext,expleft) && fitInPlace(varContext,expright);
  }
  if (element instanceof CtBinaryOperator) {
    CtBinaryOperator binop=(CtBinaryOperator)element;
    CtExpression expleft=binop.getLeftHandOperand();
    CtExpression expright=binop.getRightHandOperand();
    return fitInPlace(varContext,expleft) && fitInPlace(varContext,expright);
  }
  if (element instanceof CtUnaryOperator) {
    CtUnaryOperator upnop=(CtUnaryOperator)element;
    CtExpression expleft=upnop.getOperand();
    return fitInPlace(varContext,expleft);
  }
  if (element instanceof CtBlock) {
    boolean fitTarget=true;
    List<CtStatement> args=((CtBlock)element).getStatements();
    for (int i=0; fitTarget && i < args.size(); i++) {
      fitTarget=fitInPlace(varContext,args.get(i));
    }
    return fitTarget;
  }
  if (element instanceof CtIf) {
    CtIf el=(CtIf)element;
    boolean fitTarget=fitInPlace(varContext,el.getCondition());
    if (fitTarget) {
      fitInPlace(varContext,el.getThenStatement());
      fitInPlace(varContext,el.getElseStatement());
    }
    return fitTarget;
  }
  if (element instanceof CtWhile) {
    CtWhile el=(CtWhile)element;
    boolean fitTarget=fitInPlace(varContext,el.getLoopingExpression());
    if (fitTarget) {
      fitInPlace(varContext,el.getBody());
    }
    return fitTarget;
  }
  if (element instanceof CtFor) {
    CtFor el=(CtFor)element;
    boolean fitTarget=fitInPlace(varContext,el.getExpression());
    if (fitTarget) {
      fitInPlace(varContext,el.getBody());
    }
    return fitTarget;
  }
  if (element instanceof CtForEach) {
    CtForEach el=(CtForEach)element;
    boolean fitTarget=fitInPlace(varContext,el.getExpression());
    if (fitTarget) {
      fitInPlace(varContext,el.getBody());
    }
    return fitTarget;
  }
  if (element instanceof CtDo) {
    CtDo el=(CtDo)element;
    boolean fitTarget=fitInPlace(varContext,el.getLoopingExpression());
    if (fitTarget) {
      fitInPlace(varContext,el.getBody());
    }
    return fitTarget;
  }
  if (element instanceof CtThrow) {
    CtThrow el=(CtThrow)element;
    boolean fitTarget=fitInPlace(varContext,el.getThrownExpression());
    return fitTarget;
  }
  if (element instanceof CtLiteral) {
    return true;
  }
  if (element instanceof CtLocalVariable) {
    CtLocalVariable el=(CtLocalVariable)element;
    fitInPlace(varContext,el.getDefaultExpression());
    return true;
  }
  if (element instanceof CtTypeAccess)   return true;
  logger.error("String_Node_Str" + element.getClass().getName() + "String_Node_Str"+ element.getSignature());
  return true;
}

Fixed version (ground truth):
/** 
 * Return true if the CtElement is valid according to a set of variables (the context). In this case valid means all variables referenced by the expression can be REPLACED by one from  the context.  It not take in account the variable names. Only types
 * @param varContext
 * @param element
 * @return
 */
@SuppressWarnings("String_Node_Str") public static boolean fitInPlace(List<CtVariable> varContext,CtElement element){
  if (element == null)   return true;
  if (element instanceof CtVariableAccess) {
    return matchVariable(varContext,(CtVariableAccess)element);
  }
  if (element instanceof CtArrayAccess) {
    CtArrayAccess el=(CtArrayAccess)element;
    boolean fitTarget=fitInPlace(varContext,el.getIndexExpression());
    if (fitTarget)     fitTarget=fitInPlace(varContext,el.getTarget());
    return fitTarget;
  }
  if (element instanceof CtReturn<?>) {
    return fitInPlace(varContext,((CtReturn)element).getReturnedExpression());
  }
  if (element instanceof CtInvocation) {
    CtInvocation inv=(CtInvocation)element;
    CtExpression target=inv.getTarget();
    boolean fitTarget=true;
    if (target != null) {
      fitTarget=fitInPlace(varContext,target);
    }
    List<CtExpression> args=inv.getArguments();
    for (int i=0; fitTarget && i < args.size(); i++) {
      fitTarget=fitInPlace(varContext,args.get(i));
    }
    return fitTarget;
  }
  if (element instanceof CtConstructorCall) {
    CtConstructorCall ccall=(CtConstructorCall)element;
    boolean fitTarget=true;
    List<CtExpression> args=ccall.getArguments();
    for (int i=0; fitTarget && i < args.size(); i++) {
      fitTarget=fitInPlace(varContext,args.get(i));
    }
    return fitTarget;
  }
  if (element instanceof CtAssignment) {
    CtAssignment assig=(CtAssignment)element;
    CtExpression expleft=assig.getAssigned();
    CtExpression expright=assig.getAssignment();
    return fitInPlace(varContext,expleft) && fitInPlace(varContext,expright);
  }
  if (element instanceof CtBinaryOperator) {
    CtBinaryOperator binop=(CtBinaryOperator)element;
    CtExpression expleft=binop.getLeftHandOperand();
    CtExpression expright=binop.getRightHandOperand();
    return fitInPlace(varContext,expleft) && fitInPlace(varContext,expright);
  }
  if (element instanceof CtUnaryOperator) {
    CtUnaryOperator upnop=(CtUnaryOperator)element;
    CtExpression expleft=upnop.getOperand();
    return fitInPlace(varContext,expleft);
  }
  if (element instanceof CtBlock) {
    boolean fitTarget=true;
    List<CtStatement> args=((CtBlock)element).getStatements();
    for (int i=0; fitTarget && i < args.size(); i++) {
      fitTarget=fitInPlace(varContext,args.get(i));
    }
    return fitTarget;
  }
  if (element instanceof CtIf) {
    CtIf el=(CtIf)element;
    boolean fitTarget=fitInPlace(varContext,el.getCondition());
    if (fitTarget) {
      fitInPlace(varContext,el.getThenStatement());
      fitInPlace(varContext,el.getElseStatement());
    }
    return fitTarget;
  }
  if (element instanceof CtWhile) {
    CtWhile el=(CtWhile)element;
    boolean fitTarget=fitInPlace(varContext,el.getLoopingExpression());
    if (fitTarget) {
      fitInPlace(varContext,el.getBody());
    }
    return fitTarget;
  }
  if (element instanceof CtFor) {
    CtFor el=(CtFor)element;
    boolean fitTarget=fitInPlace(varContext,el.getExpression());
    if (fitTarget) {
      fitInPlace(varContext,el.getBody());
    }
    return fitTarget;
  }
  if (element instanceof CtForEach) {
    CtForEach el=(CtForEach)element;
    boolean fitTarget=fitInPlace(varContext,el.getExpression());
    if (fitTarget) {
      fitInPlace(varContext,el.getBody());
    }
    return fitTarget;
  }
  if (element instanceof CtDo) {
    CtDo el=(CtDo)element;
    boolean fitTarget=fitInPlace(varContext,el.getLoopingExpression());
    if (fitTarget) {
      fitInPlace(varContext,el.getBody());
    }
    return fitTarget;
  }
  if (element instanceof CtThrow) {
    CtThrow el=(CtThrow)element;
    boolean fitTarget=fitInPlace(varContext,el.getThrownExpression());
    return fitTarget;
  }
  if (element instanceof CtLiteral) {
    return true;
  }
  if (element instanceof CtLocalVariable) {
    CtLocalVariable el=(CtLocalVariable)element;
    fitInPlace(varContext,el.getDefaultExpression());
    return true;
  }
  if (element instanceof CtTypeAccess)   return true;
  logger.error("String_Node_Str" + element.getClass().getName() + "String_Node_Str"+ element.getSignature());
  return true;
}