Program: 99505
Project: 99505
Buggy source:
@Override public boolean handleMessage(final Message msg){
  if (midiEventListener == null) {
    return false;
  }
  byte[] read=(byte[])msg.obj;
  int cable;
  int codeIndexNumber;
  int byte1;
  int byte2;
  int byte3;
  for (int i=0; i < read.length; i+=4) {
    cable=(read[i + 0] >> 4) & 0xf;
    codeIndexNumber=read[i + 0] & 0xf;
    byte1=read[i + 1] & 0xff;
    byte2=read[i + 2] & 0xff;
    byte3=read[i + 3] & 0xff;
switch (codeIndexNumber) {
case 0:
      midiEventListener.onMidiMiscellaneousFunctionCodes(sender,cable,byte1,byte2,byte3);
    break;
case 1:
  midiEventListener.onMidiCableEvents(sender,cable,byte1,byte2,byte3);
break;
case 2:
{
byte[] bytes=new byte[]{(byte)byte1,(byte)byte2};
midiEventListener.onMidiSystemCommonMessage(sender,cable,bytes);
}
break;
case 3:
{
byte[] bytes=new byte[]{(byte)byte1,(byte)byte2,(byte)byte3};
midiEventListener.onMidiSystemCommonMessage(sender,cable,bytes);
}
break;
case 4:
synchronized (this) {
systemExclusive=new ByteArrayOutputStream();
}
synchronized (systemExclusive) {
systemExclusive.write(byte1);
systemExclusive.write(byte2);
systemExclusive.write(byte3);
}
break;
case 5:
if (systemExclusive == null) {
byte[] bytes=new byte[]{(byte)byte1};
midiEventListener.onMidiSystemCommonMessage(sender,cable,bytes);
}
 else {
synchronized (systemExclusive) {
systemExclusive.write(byte1);
midiEventListener.onMidiSystemExclusive(sender,cable,systemExclusive.toByteArray());
}
synchronized (this) {
systemExclusive=null;
}
}
break;
case 6:
if (systemExclusive != null) {
synchronized (systemExclusive) {
systemExclusive.write(byte1);
systemExclusive.write(byte2);
midiEventListener.onMidiSystemExclusive(sender,cable,systemExclusive.toByteArray());
}
synchronized (this) {
systemExclusive=null;
}
}
break;
case 7:
if (systemExclusive != null) {
synchronized (systemExclusive) {
systemExclusive.write(byte1);
systemExclusive.write(byte2);
systemExclusive.write(byte3);
midiEventListener.onMidiSystemExclusive(sender,cable,systemExclusive.toByteArray());
}
synchronized (this) {
systemExclusive=null;
}
}
break;
case 8:
midiEventListener.onMidiNoteOff(sender,cable,byte1 & 0xf,byte2,byte3);
break;
case 9:
midiEventListener.onMidiNoteOn(sender,cable,byte1 & 0xf,byte2,byte3);
break;
case 10:
midiEventListener.onMidiPolyphonicAftertouch(sender,cable,byte1 & 0xf,byte2,byte3);
break;
case 11:
midiEventListener.onMidiControlChange(sender,cable,byte1 & 0xf,byte2,byte3);
break;
case 12:
midiEventListener.onMidiProgramChange(sender,cable,byte1 & 0xf,byte2);
break;
case 13:
midiEventListener.onMidiChannelAftertouch(sender,cable,byte1 & 0xf,byte2);
break;
case 14:
midiEventListener.onMidiPitchWheel(sender,cable,byte1 & 0xf,byte2 | (byte3 << 8));
break;
case 15:
midiEventListener.onMidiSingleByte(sender,cable,byte1);
break;
default :
break;
}
}
return false;
}

Fixed version (ground truth):
@Override public boolean handleMessage(final Message msg){
  if (midiEventListener == null) {
    return false;
  }
  byte[] read=(byte[])msg.obj;
  int cable;
  int codeIndexNumber;
  int byte1;
  int byte2;
  int byte3;
  for (int i=0; i < read.length; i+=4) {
    cable=(read[i + 0] >> 4) & 0xf;
    codeIndexNumber=read[i + 0] & 0xf;
    byte1=read[i + 1] & 0xff;
    byte2=read[i + 2] & 0xff;
    byte3=read[i + 3] & 0xff;
switch (codeIndexNumber) {
case 0:
      midiEventListener.onMidiMiscellaneousFunctionCodes(sender,cable,byte1,byte2,byte3);
    break;
case 1:
  midiEventListener.onMidiCableEvents(sender,cable,byte1,byte2,byte3);
break;
case 2:
{
byte[] bytes=new byte[]{(byte)byte1,(byte)byte2};
midiEventListener.onMidiSystemCommonMessage(sender,cable,bytes);
}
break;
case 3:
{
byte[] bytes=new byte[]{(byte)byte1,(byte)byte2,(byte)byte3};
midiEventListener.onMidiSystemCommonMessage(sender,cable,bytes);
}
break;
case 4:
synchronized (this) {
if (systemExclusive == null) {
systemExclusive=new ByteArrayOutputStream();
}
}
synchronized (systemExclusive) {
systemExclusive.write(byte1);
systemExclusive.write(byte2);
systemExclusive.write(byte3);
}
break;
case 5:
if (systemExclusive == null) {
byte[] bytes=new byte[]{(byte)byte1};
midiEventListener.onMidiSystemCommonMessage(sender,cable,bytes);
}
 else {
synchronized (systemExclusive) {
systemExclusive.write(byte1);
midiEventListener.onMidiSystemExclusive(sender,cable,systemExclusive.toByteArray());
}
synchronized (this) {
systemExclusive=null;
}
}
break;
case 6:
if (systemExclusive != null) {
synchronized (systemExclusive) {
systemExclusive.write(byte1);
systemExclusive.write(byte2);
midiEventListener.onMidiSystemExclusive(sender,cable,systemExclusive.toByteArray());
}
synchronized (this) {
systemExclusive=null;
}
}
break;
case 7:
if (systemExclusive != null) {
synchronized (systemExclusive) {
systemExclusive.write(byte1);
systemExclusive.write(byte2);
systemExclusive.write(byte3);
midiEventListener.onMidiSystemExclusive(sender,cable,systemExclusive.toByteArray());
}
synchronized (this) {
systemExclusive=null;
}
}
break;
case 8:
midiEventListener.onMidiNoteOff(sender,cable,byte1 & 0xf,byte2,byte3);
break;
case 9:
midiEventListener.onMidiNoteOn(sender,cable,byte1 & 0xf,byte2,byte3);
break;
case 10:
midiEventListener.onMidiPolyphonicAftertouch(sender,cable,byte1 & 0xf,byte2,byte3);
break;
case 11:
midiEventListener.onMidiControlChange(sender,cable,byte1 & 0xf,byte2,byte3);
break;
case 12:
midiEventListener.onMidiProgramChange(sender,cable,byte1 & 0xf,byte2);
break;
case 13:
midiEventListener.onMidiChannelAftertouch(sender,cable,byte1 & 0xf,byte2);
break;
case 14:
midiEventListener.onMidiPitchWheel(sender,cable,byte1 & 0xf,byte2 | (byte3 << 8));
break;
case 15:
midiEventListener.onMidiSingleByte(sender,cable,byte1);
break;
default :
break;
}
}
return false;
}