java - Not able to print GC details -

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i trying print gc details test program in eclipse.i want set program went run>run configurations , in vm arguments gave this:

-xms1024m -xmx1024m    –xx:+printgcdetails  –xx:+printgctimestamps

however when , run program following error:

java.lang.noclassdeffounderror: –xx:+printgcdetails caused by: java.lang.classnotfoundexception: –xx:+printgcdetails     @ java.net.urlclassloader$1.run(urlclassloader.java:200)     @ java.security.accesscontroller.doprivileged(native method)     @ java.net.urlclassloader.findclass(urlclassloader.java:188)     @ java.lang.classloader.loadclass(classloader.java:307)     @ sun.misc.launcher$appclassloader.loadclass(launcher.java:301)     @ java.lang.classloader.loadclass(classloader.java:252)     @ java.lang.classloader.loadclassinternal(classloader.java:320)

what doing wrong in passing arguments.

what should tip off error message noclassdeffounderror: –xx:+printgcdetails - jvm isn't trying parse option class...

then, @ dashes before -xms1024m , –xx:+printgcdetails / –xx:+printgctimestamps - they're different!

replace latter ones former (ie. "real" dashes/minus-sign) , you're go.

cheers,


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