Program: 88437
Project: 88437
Buggy source:
public void finishViolation(ValidationRuleViolation validationRuleViolation,String id,Pair<Element,ObjectNode> clientElement,ObjectNode serverElement,JsonNode diff){
  validationRuleViolation.addAction(new CommitClientElementAction(id,clientElement != null ? clientElement.getKey() : null,clientElement != null ? clientElement.getValue() : null,project));
  validationRuleViolation.addAction(new UpdateClientElementAction(id,clientElement != null ? clientElement.getKey() : null,serverElement,project));
  ActionsCategory copyActionsCategory=new ActionsCategory("String_Node_Str","String_Node_Str");
  copyActionsCategory.setNested(true);
  validationRuleViolation.addAction(copyActionsCategory);
  copyActionsCategory.addAction(new ClipboardAction("String_Node_Str",id));
  if (clientElement != null) {
    copyActionsCategory.addAction(new ClipboardAction("String_Node_Str","String_Node_Str" + clientElement.getKey().getID()));
    try {
      copyActionsCategory.addAction(new ClipboardAction("String_Node_Str",JacksonUtils.getObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(clientElement.getValue())));
    }
 catch (    JsonProcessingException ignored) {
    }
  }
  if (serverElement != null) {
    try {
      copyActionsCategory.addAction(new ClipboardAction("String_Node_Str",JacksonUtils.getObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(serverElement)));
    }
 catch (    JsonProcessingException ignored) {
    }
  }
  if (diff != null) {
    try {
      copyActionsCategory.addAction(new ClipboardAction("String_Node_Str",JacksonUtils.getObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(diff)));
    }
 catch (    JsonProcessingException ignored) {
    }
  }
  elementEquivalenceValidationRule.addViolation(validationRuleViolation);
  invalidElements.put(id,new Pair<>(clientElement,serverElement));
}

Fixed version (ground truth):
public void finishViolation(ValidationRuleViolation validationRuleViolation,String id,Pair<Element,ObjectNode> clientElement,ObjectNode serverElement,JsonNode diff){
  validationRuleViolation.addAction(new CommitClientElementAction(id,clientElement != null ? clientElement.getKey() : null,clientElement != null ? clientElement.getValue() : null,project));
  validationRuleViolation.addAction(new UpdateClientElementAction(id,clientElement != null ? clientElement.getKey() : null,serverElement,project));
  ActionsCategory copyActionsCategory=new ActionsCategory("String_Node_Str","String_Node_Str");
  copyActionsCategory.setNested(true);
  validationRuleViolation.addAction(copyActionsCategory);
  copyActionsCategory.addAction(new ClipboardAction("String_Node_Str",id));
  if (clientElement != null) {
    copyActionsCategory.addAction(new ClipboardAction("String_Node_Str","String_Node_Str" + clientElement.getKey().getLocalID()));
    try {
      copyActionsCategory.addAction(new ClipboardAction("String_Node_Str",JacksonUtils.getObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(clientElement.getValue())));
    }
 catch (    JsonProcessingException ignored) {
    }
  }
  if (serverElement != null) {
    try {
      copyActionsCategory.addAction(new ClipboardAction("String_Node_Str",JacksonUtils.getObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(serverElement)));
    }
 catch (    JsonProcessingException ignored) {
    }
  }
  if (diff != null) {
    try {
      copyActionsCategory.addAction(new ClipboardAction("String_Node_Str",JacksonUtils.getObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(diff)));
    }
 catch (    JsonProcessingException ignored) {
    }
  }
  elementEquivalenceValidationRule.addViolation(validationRuleViolation);
  invalidElements.put(id,new Pair<>(clientElement,serverElement));
}