output: #fixed code
                                  public void testIsBinaryWhiteListedExtension() {
          SearchcodeLib sl = new SearchcodeLib();
          ArrayList<String> codeLines = new ArrayList<>();
          codeLines.add("你你你你你你你你你你你你你你你你你你你你你你你你你你你");
  
          FileClassifier fileClassifier = new FileClassifier();
  
          for(FileClassifierResult fileClassifierResult: fileClassifier.getDatabase()) {
              for(String extension: fileClassifierResult.extensions) {
                  BinaryFinding isBinary = sl.isBinary(codeLines, "myfile." + extension);
                  assertThat(isBinary.isBinary()).isFalse();
              }
          }
      }
input: #vulnerable code 
                                  public void testIsBinaryWhiteListedExtension() {
          SearchcodeLib sl = new SearchcodeLib();
          ArrayList<String> codeLines = new ArrayList<>();
          codeLines.add("你你你你你你你你你你你你你你你你你你你你你你你你你你你");
  
          FileClassifier fileClassifier = new FileClassifier();
  
          for(Classifier classifier: fileClassifier.getClassifier()) {
              for(String extension: classifier.extensions) {
                  BinaryFinding isBinary = sl.isBinary(codeLines, "myfile." + extension);
                  assertThat(isBinary.isBinary()).isFalse();
              }
          }
      } 
                              #location 8 
                              #vulnerability type NULL_DEREFERENCE