fix warning about Thread.getID()

'The method getId() from the type Thread is deprecated since version 19'

Author: Jörg Kubitz

debug/org.eclipse.debug.ui.launchview.tests/src/org/eclipse/debug/ui/launchview/tests/TestUtil.java

@@ -264,7 +264,8 @@ private static String dumpRunningOrWaitingJobs(List<Job> jobs) {
 			sb.append(job.getClass().getName());
 			Thread thread = job.getThread();
 			if (thread != null) {
-				ThreadInfo[] threadInfos = ManagementFactory.getThreadMXBean().getThreadInfo(new long[] { thread.getId() }, true, true);
+				ThreadInfo[] threadInfos = ManagementFactory.getThreadMXBean().getThreadInfo(new long[] {
+						thread.threadId() }, true, true);
 				if (threadInfos[0] != null) {
 					sb.append("\nthread info: ").append(threadInfos[0]);
 				}