I am trying to install Owners plugin on Gerrit 2.11.5. Machine running the Gerrit instance has JAVA 1.7.0_67.
I compiled the plugin with the same Java version 1.7.0_67 and installed it on Gerrit. As soon as I query for open changes in web interface, I get "Internal server error" and get the following errors in the error_log.
Am I missing something here? Please give me some inputs.
[2017-04-11 21:12:49,422] INFO com.google.gerrit.server.plugins.PluginLoader : Loaded plugin owners, version v2.11.5
[2017-04-11 21:19:04,249] INFO com.vmware.gerrit.owners.OwnersStoredValues : Initializing OwnerStoredValues
[2017-04-11 21:19:09,804] WARN org.eclipse.jetty.servlet.ServletHandler : Error for /changes/2428/detail
java.lang.UnsupportedClassVersionError: org/gitective/core/BlobUtils : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at com.vmware.gerrit.owners.common.PathOwners.getOwners(PathOwners.java:149)
at com.vmware.gerrit.owners.common.PathOwners.fetchOwners(PathOwners.java:71)
at com.vmware.gerrit.owners.common.PathOwners.<init>(PathOwners.java:49)
at com.vmware.gerrit.owners.OwnersStoredValues$1.createValue(OwnersStoredValues.java:44)
at com.vmware.gerrit.owners.OwnersStoredValues$1.createValue(OwnersStoredValues.java:35)
at com.google.gerrit.rules.StoredValue.get(StoredValue.java:64)
at gerrit_owners.PRED_owner_path_1.exec(PRED_owner_path_1.java:38)
at com.googlecode.prolog_cafe.lang.PrologControl.executePredicate(PrologControl.java:154)
at com.googlecode.prolog_cafe.lang.BufferingPrologControl.run(BufferingPrologControl.java:147)
at com.googlecode.prolog_cafe.lang.BufferingPrologControl.all(BufferingPrologControl.java:121)
at com.google.gerrit.server.project.SubmitRuleEvaluator.evaluateImpl(SubmitRuleEvaluator.java:466)
at com.google.gerrit.server.project.SubmitRuleEvaluator.evaluate(SubmitRuleEvaluator.java:222)
at com.google.gerrit.server.change.ChangeJson.submitRecords(ChangeJson.java:437)
at com.google.gerrit.server.change.ChangeJson.initLabels(ChangeJson.java:494)
at com.google.gerrit.server.change.ChangeJson.labelsForOpenChange(ChangeJson.java:465)
at com.google.gerrit.server.change.ChangeJson.labelsFor(ChangeJson.java:455)
at com.google.gerrit.server.change.ChangeJson.toChangeInfo(ChangeJson.java:387)
at com.google.gerrit.server.change.ChangeJson.format(ChangeJson.java:238)
at com.google.gerrit.server.change.ChangeJson.format(ChangeJson.java:227)
at com.google.gerrit.server.change.ChangeJson.format(ChangeJson.java:206)
at com.google.gerrit.server.change.GetChange.apply(GetChange.java:46)
at com.google.gerrit.server.change.GetDetail.apply(GetDetail.java:50)
at com.google.gerrit.server.change.GetDetail.apply(GetDetail.java:26)
at com.google.gerrit.httpd.restapi.RestApiServlet.service(RestApiServlet.java:324)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
at com.google.inject.servlet.ServletDefinition.doServiceImpl(ServletDefinition.java:287)
at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:277)
at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:182)
at com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:91)
at com.google.gerrit.httpd.GetUserFilter.doFilter(GetUserFilter.java:82)
at com.google.gwtexpui.server.CacheControlFilter.doFilter(CacheControlFilter.java:73)
at com.google.gerrit.httpd.RunAsFilter.doFilter(RunAsFilter.java:117)
at com.google.gerrit.httpd.RequireSslFilter.doFilter(RequireSslFilter.java:68)
at com.google.gerrit.httpd.AllRequestFilter$FilterProxy$1.doFilter(AllRequestFilter.java:64)
at com.google.gerrit.httpd.AllRequestFilter$FilterProxy.doFilter(AllRequestFilter.java:57)
at com.google.gerrit.httpd.RequestContextFilter.doFilter(RequestContextFilter.java:75)
at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:119)
at com.google.inject.servlet.GuiceFilter$1.call(GuiceFilter.java:133)
at com.google.inject.servlet.GuiceFilter$1.call(GuiceFilter.java:130)
at com.google.inject.servlet.GuiceFilter$Context.call(GuiceFilter.java:203)
at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:130)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:221)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.handler.RequestLogHandler.handle(RequestLogHandler.java:95)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.Server.handle(Server.java:497)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
at java.lang.Thread.run(Thread.java:745)
[2017-04-11 21:19:09,806] ERROR com.google.gerrit.pgm.http.jetty.HiddenErrorHandler : Error in GET /changes/2428/detail?O=404
java.lang.UnsupportedClassVersionError: org/gitective/core/BlobUtils : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at com.vmware.gerrit.owners.common.PathOwners.getOwners(PathOwners.java:149)
at com.vmware.gerrit.owners.common.PathOwners.fetchOwners(PathOwners.java:71)
at com.vmware.gerrit.owners.common.PathOwners.<init>(PathOwners.java:49)
at com.vmware.gerrit.owners.OwnersStoredValues$1.createValue(OwnersStoredValues.java:44)
at com.vmware.gerrit.owners.OwnersStoredValues$1.createValue(OwnersStoredValues.java:35)
at com.google.gerrit.rules.StoredValue.get(StoredValue.java:64)
at gerrit_owners.PRED_owner_path_1.exec(PRED_owner_path_1.java:38)
at com.googlecode.prolog_cafe.lang.PrologControl.executePredicate(PrologControl.java:154)
at com.googlecode.prolog_cafe.lang.BufferingPrologControl.run(BufferingPrologControl.java:147)
at com.googlecode.prolog_cafe.lang.BufferingPrologControl.all(BufferingPrologControl.java:121)
at com.google.gerrit.server.project.SubmitRuleEvaluator.evaluateImpl(SubmitRuleEvaluator.java:466)
at com.google.gerrit.server.project.SubmitRuleEvaluator.evaluate(SubmitRuleEvaluator.java:222)
at com.google.gerrit.server.change.ChangeJson.submitRecords(ChangeJson.java:437)
at com.google.gerrit.server.change.ChangeJson.initLabels(ChangeJson.java:494)
at com.google.gerrit.server.change.ChangeJson.labelsForOpenChange(ChangeJson.java:465)
at com.google.gerrit.server.change.ChangeJson.labelsFor(ChangeJson.java:455)
at com.google.gerrit.server.change.ChangeJson.toChangeInfo(ChangeJson.java:387)
at com.google.gerrit.server.change.ChangeJson.format(ChangeJson.java:238)
at com.google.gerrit.server.change.ChangeJson.format(ChangeJson.java:227)
at com.google.gerrit.server.change.ChangeJson.format(ChangeJson.java:206)
at com.google.gerrit.server.change.GetChange.apply(GetChange.java:46)
at com.google.gerrit.server.change.GetDetail.apply(GetDetail.java:50)
at com.google.gerrit.server.change.GetDetail.apply(GetDetail.java:26)
at com.google.gerrit.httpd.restapi.RestApiServlet.service(RestApiServlet.java:324)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
at com.google.inject.servlet.ServletDefinition.doServiceImpl(ServletDefinition.java:287)
at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:277)
at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:182)
at com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:91)
at com.google.gerrit.httpd.GetUserFilter.doFilter(GetUserFilter.java:82)
at com.google.gwtexpui.server.CacheControlFilter.doFilter(CacheControlFilter.java:73)
at com.google.gerrit.httpd.RunAsFilter.doFilter(RunAsFilter.java:117)
at com.google.gerrit.httpd.RequireSslFilter.doFilter(RequireSslFilter.java:68)
at com.google.gerrit.httpd.AllRequestFilter$FilterProxy$1.doFilter(AllRequestFilter.java:64)
at com.google.gerrit.httpd.AllRequestFilter$FilterProxy.doFilter(AllRequestFilter.java:57)
at com.google.gerrit.httpd.RequestContextFilter.doFilter(RequestContextFilter.java:75)
at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:119)
at com.google.inject.servlet.GuiceFilter$1.call(GuiceFilter.java:133)
at com.google.inject.servlet.GuiceFilter$1.call(GuiceFilter.java:130)
at com.google.inject.servlet.GuiceFilter$Context.call(GuiceFilter.java:203)
at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:130)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:221)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.handler.RequestLogHandler.handle(RequestLogHandler.java:95)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.Server.handle(Server.java:497)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
at java.lang.Thread.run(Thread.java:745)
Thanks
Sharath