Java 2.0 Ecosystem compatibility with Cobertura 1.6.1 - sonarqube

Question

We are trying to upgrade SonarQube from 3.6.2 to 3.7.4 LTS in order to have PL/SQL plugin working.
As per the plugin Matrix for 3.7.4 LTS version, Java Plugin 2.0 and Cobertura 1.6.1 are recommended.
However, when we restart SonarQube with above plugins, it keeps on reporting below error.
Would appreciate a solution here.
Thanks,
Br,
Error message:
2014.06.02 12:32:02 ERROR o.s.s.p.Platform The plugin 'java' is in version 2.0 whereas the plugin 'cobertura' requires a least a version 2.1.
org.sonar.updatecenter.common.exception.IncompatiblePluginVersionException: The plugin 'java' is in version 2.0 whereas the plugin 'cobertura' requires a least a version 2.1.
at org.sonar.updatecenter.common.PluginReferential.addOutgoingDependency(PluginReferential.java:148) ~[sonar-update-center-common-1.8.jar:na]
at org.sonar.updatecenter.common.PluginReferentialManifestConverter.fromPluginManifests(PluginReferentialManifestConverter.java:66) ~[sonar-update-center-common-1.8.jar:na]
at org.sonar.server.plugins.PluginReferentialMetadataConverter.getInstalledPluginReferential(PluginReferentialMetadataConverter.java:40) ~[classes/:na]
at org.sonar.server.plugins.InstalledPluginReferentialFactory.init(InstalledPluginReferentialFactory.java:48) ~[classes/:na]
at org.sonar.server.plugins.InstalledPluginReferentialFactory.start(InstalledPluginReferentialFactory.java:37) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_25]
at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_25]
at org.picocontainer.lifecycle.ReflectionLifecycleStrategy.invokeMethod(ReflectionLifecycleStrategy.java:110) ~[picocontainer-2.14.3.jar:na]
at org.picocontainer.lifecycle.ReflectionLifecycleStrategy.start(ReflectionLifecycleStrategy.java:89) ~[picocontainer-2.14.3.jar:na]
at org.picocontainer.injectors.AbstractInjectionFactory$LifecycleAdapter.start(AbstractInjectionFactory.java:84) ~[picocontainer-2.14.3.jar:na]
at org.picocontainer.behaviors.AbstractBehavior.start(AbstractBehavior.java:169) ~[picocontainer-2.14.3.jar:na]
at org.picocontainer.behaviors.Stored$RealComponentLifecycle.start(Stored.java:132) ~[picocontainer-2.14.3.jar:na]
at org.picocontainer.behaviors.Stored.start(Stored.java:110) ~[picocontainer-2.14.3.jar:na]
at org.picocontainer.DefaultPicoContainer.potentiallyStartAdapter(DefaultPicoContainer.java:1015) ~[picocontainer-2.14.3.jar:na]
at org.picocontainer.DefaultPicoContainer.startAdapters(DefaultPicoContainer.java:1008) ~[picocontainer-2.14.3.jar:na]
at org.picocontainer.DefaultPicoContainer.start(DefaultPicoContainer.java:766) ~[picocontainer-2.14.3.jar:na]
at org.sonar.api.platform.ComponentContainer.startComponents(ComponentContainer.java:91) ~[sonar-plugin-api-3.7.4.jar:na]
at org.sonar.server.platform.Platform.startDatabaseConnectors(Platform.java:251) ~[classes/:na]
at org.sonar.server.platform.Platform.init(Platform.java:189) ~[classes/:na]
at org.sonar.server.platform.PlatformLifecycleListener.contextInitialized(PlatformLifecycleListener.java:33) ~[classes/:na]
at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:746) ~[na:na]
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:238) ~[na:na]
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1240) ~[na:na]
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:689) ~[na:na]
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:482) ~[na:na]
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64) ~[jetty-util-7.6.11.v20130520.jar:7.6.11.v20130520]
at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:229) ~[na:na]
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64) ~[jetty-util-7.6.11.v20130520.jar:7.6.11.v20130520]
at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:95) ~[na:na]
at org.eclipse.jetty.server.Server.doStart(Server.java:281) ~[na:na]
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64) ~[jetty-util-7.6.11.v20130520.jar:7.6.11.v20130520]
at org.sonar.application.JettyEmbedder.start(JettyEmbedder.java:67) ~[sonar-application-3.7.4.jar:na]
at org.sonar.application.StartServer.main(StartServer.java:48) ~[sonar-application-3.7.4.jar:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_25]
at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_25]
at org.tanukisoftware.wrapper.WrapperSimpleApp.run(WrapperSimpleApp.java:240) ~[wrapper-3.2.3.jar:3.2.3]
at java.lang.Thread.run(Thread.java:724) ~[na:1.7.0_25]
INFO | jvm 1 | 2014/06/02 12:32:02 | 2014-06-02 12:32:02.897:WARN:oejw.WebAppContext:Failed startup of context o.e.j.w.WebAppContext{/,file:/opt/sonar_home/war/sonar-server/},file:/opt/sonar_home/war/sonar-server

Answer 1

There was in fact an error on the plugin compatibility matrix which has been fixed now thanks to your feedback.
Please use the version 1.4 of cobertura plugin with version of Java 2.0. You can find it here.

Answer 2

Just a small update.
Cobertura 1.4 is verified to be working (no more error thrown out during sonar start) with Java 2.0 on Sonar 3.7.4.
You may want to update the compatibility Matrix as well.
Appreciate for the help.