code: private File getTmpDir(ProbeTestRun testRun) {
  		File tmpDir = new File(configuration.getWorkspace() + "/tmp/" + testRun.getVersion());
  		
  		if (!tmpDir.exists()) {
  			tmpDir.mkdirs();
  		}
  		
  		return tmpDir;
  	}
docs: Retrieve the temporary directory where to store/load payloads
  
  @param testRun The test run to retrieve the temp directory
  @return The temp directory, new one if the directory does not exist