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Java Forum / General / March 2007Howto Display JVM Option in code
Hi. I try to display in my application the options of the jvm. To verify and eventually adapt the process. In fact i want a code that display for example : JVM Arguments -Xms:128 -Xmx:128 etc Thanks for any help > Hi. > [quoted text clipped - 9 lines] > > Thanks for any help I don't think these options are exposed via any API. Indirectly, you can use Runtime.maxMemory() to get -Xmx parameter. > I try to display in my application the options of the jvm. To verify > and eventually adapt the process. As far as I know, that is not possible. I would /love/ to be proved wrong... -- chris >> I try to display in my application the options of the jvm. To verify >> and eventually adapt the process. > > As far as I know, that is not possible. I would /love/ to be proved wrong... Well, jinfo shows the information. So you could either duplicate parts of jinfo (which presumably connects to a debugging/performance/monitoring & management interface) or do something platform specific, such as run /bin/ps. But generally you can't change these things at runtime. Tom Hawtin >>> I try to display in my application the options of the jvm. To verify >>> and eventually adapt the process. [quoted text clipped - 6 lines] > debugging/performance/monitoring & management interface) or do something > platform specific, such as run /bin/ps. jinfo is /presumably/ using that: <http://java.sun.com/javase/6/docs/api/java/lang/management/RuntimeMXBean.html#ge tInputArguments()> For current JVM, it's one line of code to have that info: ManagementFactory.getRuntimeMXBean().getInputArguments() piotr Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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