try {
if (cmdProcessBuilder.isMacOS() || cmdProcessBuilder.isUNIXLinux()) {
initializeRuntimeProcess(execCmd);
// Prints out any stderror msgs
cmdPBSHelper = new CmdProcessBuilderStreamHelper(process.getErrorStream(), "ERROR");
cmdPBSHelper.start();
Assert.assertNotNull(cmdPBSHelper);
exitValueWaitFor = process.waitFor();
Assert.assertEquals(0, exitValueWaitFor);