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src/jdk.jcmd/share/classes/sun/tools/jstack/JStack.java
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rev 48495 : 8189102: All tools should support -?, -h and --help
Reviewed-by: kvn, jjg, weijun, alanb, rfield, ksrini
@@ -1,7 +1,7 @@
/*
- * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
@@ -54,11 +54,15 @@
while (optionCount < args.length) {
String arg = args[optionCount];
if (!arg.startsWith("-")) {
break;
}
- if (arg.equals("-help") || arg.equals("-h")) {
+ if (arg.equals("-?") ||
+ arg.equals("-h") ||
+ arg.equals("--help") ||
+ // -help: legacy.
+ arg.equals("-help")) {
usage(0);
}
else {
if (arg.equals("-l")) {
locks = true;
@@ -169,9 +173,9 @@
System.err.println(" jstack [-l] <pid>");
System.err.println(" (to connect to running process)");
System.err.println("");
System.err.println("Options:");
System.err.println(" -l long listing. Prints additional information about locks");
- System.err.println(" -h or -help to print this help message");
+ System.err.println(" -? -h --help -help to print this help message");
System.exit(exit);
}
}
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