output: #fixed code
                                  public Optional<Value> solveSymbolAsValue(String name, Node node) {
          Context context = JavaParserFactory.getContext(node);
          return solveSymbolAsValue(name, context);
      }
input: #vulnerable code 
                                  public Optional<Value> solveSymbolAsValue(String name, Node node) {
          return solveSymbolAsValue(name, JavaParserFactory.getContext(node));
      } 
                              #location 2 
                              #vulnerability type NULL_DEREFERENCE