Program: 164946
Project: 164946
Buggy source:
@Override @Nullable public MethodVisitor visitMethod(int access,@NotNull String name,@NotNull String desc,@Nullable String signature,@Nullable String[] exceptions){
  boolean syntheticOrAbstractMethod=(access & METHOD_ACCESS_MASK) != 0;
  if (syntheticOrAbstractMethod || isProxy && isConstructorOrSystemMethodNotToBeMocked(name,desc)) {
    return unmodifiedBytecode(access,name,desc,signature,exceptions);
  }
  boolean noFiltersToMatch=mockingCfg == null;
  boolean matchesFilters=noFiltersToMatch || mockingCfg.matchesFilters(name,desc);
  if ("String_Node_Str".equals(name)) {
    return stubOutClassInitializationIfApplicable(access,noFiltersToMatch,matchesFilters);
  }
  if (stubOutFinalizeMethod(access,name,desc)) {
    return null;
  }
  boolean visitingConstructor="String_Node_Str".equals(name);
  if (!matchesFilters || isMethodFromCapturedClassNotToBeMocked(access) || noFiltersToMatch && isMethodOrConstructorNotToBeMocked(access,visitingConstructor,name)) {
    return unmodifiedBytecode(access,name,desc,signature,exceptions);
  }
  startModifiedMethodVersion(access,name,desc,signature,exceptions);
  if (visitingConstructor && superClassName != null) {
    generateCallToSuperConstructor();
  }
  String internalClassName=className;
  if (!visitingConstructor && baseClassNameForCapturedInstanceMethods != null) {
    internalClassName=baseClassNameForCapturedInstanceMethods;
  }
  ExecutionMode actualExecutionMode=determineAppropriateExecutionMode(visitingConstructor);
  if (useMockingBridge) {
    return generateCallToHandlerThroughMockingBridge(signature,internalClassName,actualExecutionMode);
  }
  generateDirectCallToHandler(mw,internalClassName,access,name,desc,signature,actualExecutionMode);
  generateDecisionBetweenReturningOrContinuingToRealImplementation();
  return visitingConstructor ? new DynamicConstructorModifier() : copyOriginalImplementationCode();
}

Fixed version (ground truth):
@Override @Nullable public MethodVisitor visitMethod(int access,@NotNull String name,@NotNull String desc,@Nullable String signature,@Nullable String[] exceptions){
  boolean syntheticOrAbstractMethod=(access & METHOD_ACCESS_MASK) != 0;
  if (syntheticOrAbstractMethod || isProxy && isConstructorOrSystemMethodNotToBeMocked(name,desc)) {
    return unmodifiedBytecode(access,name,desc,signature,exceptions);
  }
  boolean noFiltersToMatch=mockingCfg == null;
  boolean matchesFilters=noFiltersToMatch || mockingCfg.matchesFilters(name,desc);
  if ("String_Node_Str".equals(name)) {
    return stubOutClassInitializationIfApplicable(access,noFiltersToMatch,matchesFilters);
  }
  if (stubOutFinalizeMethod(access,name,desc)) {
    return null;
  }
  boolean visitingConstructor="String_Node_Str".equals(name);
  if (!matchesFilters || isMethodFromCapturedClassNotToBeMocked(access) || noFiltersToMatch && isMethodOrConstructorNotToBeMocked(access,visitingConstructor,name)) {
    return unmodifiedBytecode(access,name,desc,signature,exceptions);
  }
  startModifiedMethodVersion(access,name,desc,signature,exceptions);
  if (visitingConstructor && superClassName != null) {
    generateCallToSuperConstructor();
  }
  String internalClassName=className;
  if (!visitingConstructor && baseClassNameForCapturedInstanceMethods != null) {
    internalClassName=baseClassNameForCapturedInstanceMethods;
  }
  ExecutionMode actualExecutionMode=determineAppropriateExecutionMode(visitingConstructor);
  if (useMockingBridge) {
    return generateCallToHandlerThroughMockingBridge(signature,internalClassName,actualExecutionMode);
  }
  generateDirectCallToHandler(mw,internalClassName,access,name,desc,signature,actualExecutionMode);
  generateDecisionBetweenReturningOrContinuingToRealImplementation();
  return copyOriginalImplementationCode(visitingConstructor);
}