output: #fixed code
                               public void checkVersionSupport(byte[] keepassFile) throws IOException {
  		BufferedInputStream inputStream = new BufferedInputStream(new ByteArrayInputStream(keepassFile));
  
  		byte[] signature = new byte[VERSION_SIGNATURE_LENGTH];
  		int readBytes = inputStream.read(signature);
  		if(readBytes == -1) {
  			throw new UnsupportedOperationException("Could not read KeePass header. The provided file seems to be no KeePass database file!");
  		}
  
  		ByteBuffer signatureBuffer = ByteBuffer.wrap(signature);
  		signatureBuffer.order(ByteOrder.LITTLE_ENDIAN);
  
  		int signaturePart1 = ByteUtils.toUnsignedInt(signatureBuffer.getInt());
  		int signaturePart2 = ByteUtils.toUnsignedInt(signatureBuffer.getInt());
  
  		if (signaturePart1 == DATABASE_V2_FILE_SIGNATURE_1_INT && signaturePart2 == DATABASE_V2_FILE_SIGNATURE_2_INT) {
  			return;
  		} else if (signaturePart1 == OLD_DATABASE_V1_FILE_SIGNATURE_1_INT
  				&& signaturePart2 == OLD_DATABASE_V1_FILE_SIGNATURE_2_INT) {
  			throw new UnsupportedOperationException(
  					"The provided KeePass database file seems to be from KeePass 1.x which is not supported!");
  		} else {
  			throw new UnsupportedOperationException("The provided file seems to be no KeePass database file!");
  		}
  	}
input: #vulnerable code 
                               public void checkVersionSupport(byte[] keepassFile) throws IOException {
  		BufferedInputStream bufferedInputStream = new BufferedInputStream(new ByteArrayInputStream(keepassFile));
  
  		byte[] signature = new byte[VERSION_SIGNATURE_LENGTH];
  		bufferedInputStream.read(signature);
  
  		ByteBuffer signatureBuffer = ByteBuffer.wrap(signature);
  		signatureBuffer.order(ByteOrder.LITTLE_ENDIAN);
  
  		int signaturePart1 = ByteUtils.toUnsignedInt(signatureBuffer.getInt());
  		int signaturePart2 = ByteUtils.toUnsignedInt(signatureBuffer.getInt());
  
  		if (signaturePart1 == DATABASE_V2_FILE_SIGNATURE_1_INT && signaturePart2 == DATABASE_V2_FILE_SIGNATURE_2_INT) {
  			return;
  		} else if (signaturePart1 == OLD_DATABASE_V1_FILE_SIGNATURE_1_INT
  				&& signaturePart2 == OLD_DATABASE_V1_FILE_SIGNATURE_2_INT) {
  			throw new UnsupportedOperationException(
  					"The provided KeePass database file seems to be from KeePass 1.x which is not supported!");
  		} else {
  			throw new UnsupportedOperationException("The provided file seems to be no KeePass database file!");
  		}
  	} 
                              #location 5 
                              #vulnerability type RESOURCE_LEAK