The JVM id is only internally available and cannot be accessed using normal Java methods.
Java 1.4 and higher
Make use of System.getProperties(). But this does not provide any unique identification of a JVM!
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java.runtime.name: Java(TM) SE Runtime Environment
java.vm.version: 14.1-b02
java.vm.vendor: Sun Microsystems Inc.
java.vendor.url: http://java.sun.com/
java.vm.name: Java HotSpot(TM) Server VM
java.vm.specification.name: Java Virtual Machine Specification
java.runtime.version: 1.6.0_15-b03
java.awt.graphicsenv: sun.awt.X11GraphicsEnvironment
java.endorsed.dirs: /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/endorsed
java.io.tmpdir: /tmp
java.vm.specification.vendor: Sun Microsystems Inc.
java.library.path: /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/server:/usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386:/usr/lib/jvm/java-6-sun-1.6.0.15/jre/../lib/i386:/usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/client:/usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386:/usr/lib/xulrunner-addons:/usr/lib/xulrunner-addons:/usr/java/packages/lib/i386:/lib:/usr/lib
java.specification.name: Java Platform API Specification
java.class.version: 50.0
java.awt.printerjob: sun.print.PSPrinterJob
java.specification.version: 1.6
java.class.path: /home/bugsy/working/projects/NovaSpy/workspace/Test/bin
java.vm.specification.version: 1.0
java.home: /usr/lib/jvm/java-6-sun-1.6.0.15/jre
java.specification.vendor: Sun Microsystems Inc.
java.vm.info: mixed mode
java.version: 1.6.0_15
java.ext.dirs: /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/ext:/usr/java/packages/lib/ext
java.vendor: Sun Microsystems Inc.
java.vendor.url.bug: http://java.sun.com/cgi-bin/bugreport.cgi |
For Java5:
Use Java Management to retrieve the start time of the JVM
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ManagementFactory.getRuntimeMXBean().getStartTime() |