java.lang.UnsupportedClassVersionError: com/ubikingenierie/jmeter/plugin/hls/result/HLSSampleResultConverter : Unsupported major.minor version 51.0

Question

Running Apache JMeter 2.13 with Java 6 (1.6.0_65) and UbikLoadPack HLS plugin

I get this exception at startup:

 2016/02/15 15:11:45 ERROR - jmeter.JMeter: Uncaught exception:  java.lang.UnsupportedClassVersionError: com/ubikingenierie/jmeter/plugin/hls/result/HLSSampleResultConverter : Unsupported major.minor version 51.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:171)
    at org.apache.jmeter.save.SaveService.registerConverter(SaveService.java:297)
    at org.apache.jmeter.save.SaveService.initProps(SaveService.java:250)
    at org.apache.jmeter.save.SaveService.<clinit>(SaveService.java:191)
    at org.apache.jmeter.gui.action.Load.loadProjectFile(Load.java:130)
    at org.apache.jmeter.gui.action.Load.loadProjectFile(Load.java:102)
    at org.apache.jmeter.gui.action.LoadRecentProject.doAction(LoadRecentProject.java:68)
    at org.apache.jmeter.gui.action.ActionRouter.performAction(ActionRouter.java:81)
    at org.apache.jmeter.gui.action.ActionRouter.access$000(ActionRouter.java:40)
    at org.apache.jmeter.gui.action.ActionRouter$1.run(ActionRouter.java:63)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:715)
    at java.awt.EventQueue.access$400(EventQueue.java:82)
    at java.awt.EventQueue$2.run(EventQueue.java:676)
    at java.awt.EventQueue$2.run(EventQueue.java:674)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:86)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:685)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

Answer 1

Plugin requires Java 7 to run even with Apache JMeter 2.13.

So ensure you use a Java 7 or Java 8.

Besides, if using Java 8, ensure you use a JMeter 2.12 or superior as JMeter is compatible with Java 8 only starting from this version.