output: #fixed code
                                  @Test
      public void testWriteBeyondFileSize() throws Exception {
          ReadableByteChannel channel = new ReadableByteChannelMock(
                  new String[] {"a"}, "US-ASCII");
          HttpParams params = new BasicHttpParams();
  
          SessionInputBuffer inbuf = new SessionInputBufferImpl(1024, 256, params);
          HttpTransportMetricsImpl metrics = new HttpTransportMetricsImpl();
          LengthDelimitedDecoder decoder = new LengthDelimitedDecoder(
                  channel, inbuf, metrics, 1);
  
          File fileHandle = File.createTempFile("testFile", ".txt");
  
          RandomAccessFile testfile = new RandomAccessFile(fileHandle, "rw");
          FileChannel fchannel = testfile.getChannel();
          Assert.assertEquals(0, testfile.length());
  
          try {
              decoder.transfer(fchannel, 5, 10);
              Assert.fail("expected IOException");
          } catch(IOException iox) {}
  
          testfile.close();
          deleteWithCheck(fileHandle);
      }
input: #vulnerable code 
                                  @Test
      public void testWriteBeyondFileSize() throws Exception {
          ReadableByteChannel channel = new ReadableByteChannelMockup(
                  new String[] {"a"}, "US-ASCII");
          HttpParams params = new BasicHttpParams();
  
          SessionInputBuffer inbuf = new SessionInputBufferImpl(1024, 256, params);
          HttpTransportMetricsImpl metrics = new HttpTransportMetricsImpl();
          LengthDelimitedDecoder decoder = new LengthDelimitedDecoder(
                  channel, inbuf, metrics, 1);
  
          File fileHandle = File.createTempFile("testFile", ".txt");
  
          RandomAccessFile testfile = new RandomAccessFile(fileHandle, "rw");
          FileChannel fchannel = testfile.getChannel();
          Assert.assertEquals(0, testfile.length());
  
          try {
              decoder.transfer(fchannel, 5, 10);
              Assert.fail("expected IOException");
          } catch(IOException iox) {}
  
          testfile.close();
          deleteWithCheck(fileHandle);
      } 
                              #location 19 
                              #vulnerability type RESOURCE_LEAK