General :: Merge Two WAV Files - Result Sound File Is Empty

First there is this:

Code:
File wave1 = new File(wavFile1);
if(!wave1.exists())
throw new Exception(wave1.getPath() + " - File Not Found");

[Code]...

but android dosen't support java.sound.sampled

there is also this:

Code:

private void merge2WavFiles(String wavFile1, String wavFile2, String newWavFilePath) {
long RECORDER_SAMPLERATE = 44100;
long RECORDER_BPP = 16;

[Code]...

but is also dosen't work.

In all cases the result sound file is empty without sound.

How can I merge two *.wav files?