#vulnerable code 
                                static HprofByteBuffer createHprofByteBuffer(File dumpFile)
                                          throws IOException {
        long fileLen = dumpFile.length();

        if (fileLen < MINIMAL_SIZE) {
            String errText = "File size is too small";
            throw new IOException(errText);
        }

        try {
            if (fileLen < Integer.MAX_VALUE) {
                return new HprofMappedByteBuffer(dumpFile);
            } else {
                return new HprofLongMappedByteBuffer(dumpFile);
            }
        } catch (IOException ex) {
            if (ex.getCause() instanceof OutOfMemoryError) { // can happen on 32bit Windows, since there is only 2G for memory mapped data for whole java process.
                return new HprofFileBuffer(dumpFile);
            }

            throw ex;
        }
    } 
                            #location 18 
                            #vulnerability type RESOURCE_LEAK
#fixed code
                                static HprofByteBuffer createHprofByteBuffer(File dumpFile)
                                          throws IOException {
        long fileLen = dumpFile.length();

        if (fileLen < MINIMAL_SIZE) {
            String errText = "File size is too small";
            throw new IOException(errText);
        }

        try {
            if (fileLen < Integer.MAX_VALUE) {
                return new HprofMappedByteBuffer(dumpFile);
            } else {
                return new HprofLongMappedByteBuffer(dumpFile);
            }
        } catch (IOException ex) {
            if (ex.getCause() instanceof OutOfMemoryError) { // can happen on 32bit Windows, since there is only 2G for memory mapped data for whole java process.
                return new PagedFileHprofByteBuffer(new RandomAccessFile(dumpFile, "r"), 4 << 20, 16);
            }

            throw ex;
        }
    }