Sonarqube Plugin failing on Jenkins Version 2.19.2 & 2.30 raised bug on it https://issues.jenkins-ci.org/browse/INFRA-975, any help appreciated

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Zen Pwning

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Nov 10, 2016, 1:15:23 AM11/10/16
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Trying the installation Sonarqube Plugin failing on Jenkins Version 2.19.2 & 2.30 raised bug on it https://issues.jenkins-ci.org/browse/INFRA-975.



SonarQube Plugin
Failure - 
java.io.IOException: Failed to dynamically deploy this plugin
	at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:1383)
	at hudson.model.UpdateCenter$DownloadJob.run(UpdateCenter.java:1161)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at hudson.remoting.AtmostOneThreadExecutor$Worker.run(AtmostOneThreadExecutor.java:110)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: Failed to install sonar plugin
	at hudson.PluginManager.dynamicLoad(PluginManager.java:508)
	at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:1379)
	... 5 more
Caused by: java.io.IOException: Unable to load hudson.plugins.sonar.SonarPlugin from sonar
	at hudson.ClassicPluginStrategy.load(ClassicPluginStrategy.java:425)
	at hudson.PluginManager.dynamicLoad(PluginManager.java:499)
	... 6 more
Caused by: java.lang.UnsupportedClassVersionError: hudson/plugins/sonar/SonarPlugin : Unsupported major.minor version 52.0
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:803)
	at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1139)
	at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:802)
	at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1310)
	at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1366)
	at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1326)
	at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1079)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	at hudson.ClassicPluginStrategy.load(ClassicPluginStrategy.java:418)

Stefan Lorenz

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Nov 10, 2016, 1:25:06 AM11/10/16
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"Unsupported major.minor version 52.0" 

indicates a wrong Java version... probably you Java 8 is not supported by the plugin 

Zen Pwning

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Nov 10, 2016, 1:35:44 AM11/10/16
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Can you give me any suggestions, to install the sonaqube plugin successfully so that I can resolve the issue in my scenario? 

Stefan Lorenz

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Nov 10, 2016, 1:40:13 AM11/10/16
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Am Donnerstag, 10. November 2016 07:25:06 UTC+1 schrieb Stefan Lorenz:
"Unsupported major.minor version 52.0" 

indicates a wrong Java version... probably you use Java 8 and this is not supported by the plugin...

Zen Pwning

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Nov 10, 2016, 1:42:24 AM11/10/16
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So what version of Java should I have installed in my system if not Java 8?

Daniel Beck

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Nov 10, 2016, 10:22:26 AM11/10/16
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> On 10.11.2016, at 07:42, Zen Pwning <karth...@gmail.com> wrote:
>
> So what version of Java should I have installed in my system if not Java 8?

it looks like Jenkins is running on Java 7. Check the /systemInfo URL to confirm (and see what JRE is used).

Zen Pwning

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Nov 12, 2016, 2:38:28 PM11/12/16
to Jenkins Users, m...@beckweb.net
Solution/workaround to the issue:
After the Installation of JDK8  was able to install the Sonarqube plugin.Mentioning this because, it can be useful for someone who may face the same issue.
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