path2tracelib = cmd_path2tracelib.getText();
if ( path2tracelib != null && path2tracelib.length() > 0 )
exec_cmd.addWholeString( "-Djava.library.path=" + path2tracelib );
exec_cmd.addWholeString( "-jar" );
exec_cmd.addWholeString( jar_path );
option4jar = cmd_option4jar.getText();
if ( option4jar != null && option4jar.length() > 0 )
exec_cmd.addTokenizedString( option4jar );