{JDK 1.3-R}

I came to this bug while trying to compile files with all available compiler types in a row.

1) Let compile a <blabla>.java file by some External compiler, (file should be correct).
   Compilation should be succesful.

2) Then "quickly"  change the compiler of that file to internal compiler and run compilation.

3) Sometimes a compilation crashes with following output like:
    "<blabla>.java Error while writing <blabla> EXC_DataAlreadyExist


4) Then when  you wait a bit and try again the compilation runs succesfully.