#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();
            }
        }
    }
#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