When attempting to view a Diff in Bitbucket Server an unknown error message is received

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Platform notice: Server and Data Center only. This article only applies to Atlassian products on the Server and Data Center platforms.

Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.

*Except Fisheye and Crucible

Problem

When attempting to load a diff in Bitbucket Server's user interface an unknown error message is displayed and the diff does not load:

 

The following appears in the atlassian-bitbucket.log

2016-02-25 09:04:18,969 ERROR [http-nio-7991-exec-16] @U07IK7x544x391826x0 1arj3di 10.90.67.28,127.0.0.1 "GET /mvc/error500 HTTP/1.1" c.a.s.i.web.ErrorPageController There was an unhandled exception loading [/rest/api/latest/projects/TESTWP/repos/test/pull-requests/1/changes]
javax.servlet.ServletException: Filter execution threw an exception
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:255) ~[catalina.jar:8.0.24]
	at com.atlassian.plugin.connect.plugin.auth.scope.ApiScopingFilter.doFilter(ApiScopingFilter.java:89) ~[na:na]
	at com.atlassian.stash.internal.spring.security.StashAuthenticationFilter.doFilter(StashAuthenticationFilter.java:88) ~[StashAuthenticationFilter.class:na]
	at com.atlassian.stash.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doInsideSpringSecurityChain(BeforeLoginPluginAuthenticationFilter.java:109) ~[BeforeLoginPluginAuthenticationFilter.class:na]
	at com.atlassian.stash.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doFilter(BeforeLoginPluginAuthenticationFilter.java:75) ~[BeforeLoginPluginAuthenticationFilter.class:na]
	at com.atlassian.security.auth.trustedapps.filter.TrustedApplicationsFilter.doFilter(TrustedApplicationsFilter.java:94) ~[atlassian-trusted-apps-core-4.2.0.jar:na]
	at com.atlassian.oauth.serviceprovider.internal.servlet.OAuthFilter.doFilter(OAuthFilter.java:67) ~[na:na]
	at com.atlassian.core.filters.ServletContextThreadLocalFilter.doFilter(ServletContextThreadLocalFilter.java:21) ~[atlassian-core-4.6.19.jar:na]
	at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31) ~[atlassian-core-4.6.19.jar:na]
	at com.atlassian.plugin.connect.plugin.auth.user.ThreeLeggedAuthFilter.doFilter(ThreeLeggedAuthFilter.java:122) ~[na:na]
	at com.atlassian.plugin.connect.plugin.auth.oauth.OAuth2LOFilter.doFilter(OAuth2LOFilter.java:82) ~[na:na]
	at com.atlassian.jwt.internal.servlet.JwtAuthFilter.doFilter(JwtAuthFilter.java:32) ~[na:na]
	at com.atlassian.analytics.client.filter.DefaultAnalyticsFilter.doFilter(DefaultAnalyticsFilter.java:36) ~[na:na]
	at com.atlassian.analytics.client.filter.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:32) ~[na:na]
	at com.atlassian.stash.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doBeforeBeforeLoginFilters(BeforeLoginPluginAuthenticationFilter.java:87) ~[BeforeLoginPluginAuthenticationFilter.class:na]
	at com.atlassian.stash.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doFilter(BeforeLoginPluginAuthenticationFilter.java:73) ~[BeforeLoginPluginAuthenticationFilter.class:na]
	at com.atlassian.stash.internal.request.DefaultRequestManager.doAsRequest(DefaultRequestManager.java:85) ~[bitbucket-service-impl-4.3.2.jar:na]
	at com.atlassian.stash.internal.hazelcast.ConfigurableWebFilter.doFilter(ConfigurableWebFilter.java:38) ~[ConfigurableWebFilter.class:na]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_72]
	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_72]
	... 161 frames trimmed
Caused by: java.lang.NoClassDefFoundError: Could not initialize class sun.nio.fs.UnixCopyFile
	at sun.nio.fs.UnixFileSystemProvider.move(UnixFileSystemProvider.java:262) ~[na:1.8.0_72]
	at java.nio.file.Files.move(Files.java:1395) ~[na:1.8.0_72]
	at com.atlassian.stash.internal.scm.git.merge.ObjectFetchStrategy$CopyLooseObjectsVisitor.moveObject(ObjectFetchStrategy.java:485) ~[na:na]
	at com.atlassian.stash.internal.scm.git.merge.ObjectFetchStrategy$CopyLooseObjectsVisitor.visitFile(ObjectFetchStrategy.java:433) ~[na:na]
	at com.atlassian.stash.internal.scm.git.merge.ObjectFetchStrategy$CopyLooseObjectsVisitor.visitFile(ObjectFetchStrategy.java:374) ~[na:na]
	at java.nio.file.Files.walkFileTree(Files.java:2670) ~[na:1.8.0_72]
	at com.atlassian.stash.internal.scm.git.merge.ObjectFetchStrategy.fetchViaCopy(ObjectFetchStrategy.java:195) ~[na:na]
	at com.atlassian.stash.internal.scm.git.merge.ObjectFetchStrategy.fetch(ObjectFetchStrategy.java:117) ~[na:na]
	at com.atlassian.stash.internal.scm.git.merge.TimedFetchStrategy.fetch(TimedFetchStrategy.java:30) ~[na:na]
	at com.atlassian.stash.internal.scm.git.merge.MergeCommand.doFetch(MergeCommand.java:71) ~[na:na]
	at com.atlassian.stash.internal.scm.git.merge.MergeCommand.doWithWorkTree(MergeCommand.java:97) ~[na:na]
	at com.atlassian.stash.internal.scm.git.merge.MergeCommand.doWithWorkTree(MergeCommand.java:29) ~[na:na]
	at com.atlassian.stash.internal.scm.git.porcelain.AbstractWorkTreeCommand.call(AbstractWorkTreeCommand.java:36) ~[na:na]
	at com.atlassian.stash.internal.scm.git.pull.DefaultPullRequestAutoMergeStrategy.doMerge(DefaultPullRequestAutoMergeStrategy.java:107) ~[na:na]
	at com.atlassian.stash.internal.scm.git.pull.DefaultPullRequestAutoMergeStrategy.merge(DefaultPullRequestAutoMergeStrategy.java:75) ~[na:na]
	at com.atlassian.stash.internal.scm.git.pull.CompositePullRequestAutoMergeStrategy.merge(CompositePullRequestAutoMergeStrategy.java:22) ~[na:na]
	at com.atlassian.stash.internal.scm.git.pull.CachingPullRequestAutoMergeStrategy.merge(CachingPullRequestAutoMergeStrategy.java:49) ~[na:na]
	at com.atlassian.stash.internal.scm.git.pull.CompositePullRequestAutoMergeStrategy.merge(CompositePullRequestAutoMergeStrategy.java:22) ~[na:na]
	at com.atlassian.stash.internal.scm.git.pull.DefaultPullRequestRefHelper.resolveNewEffectiveDiff(DefaultPullRequestRefHelper.java:409) ~[na:na]
	at com.atlassian.stash.internal.scm.git.pull.DefaultPullRequestRefHelper.access$500(DefaultPullRequestRefHelper.java:50) ~[na:na]
	at com.atlassian.stash.internal.scm.git.pull.DefaultPullRequestRefHelper$EffectiveDiffOperation.perform(DefaultPullRequestRefHelper.java:530) ~[na:na]
	at com.atlassian.stash.internal.scm.git.pull.DefaultPullRequestRefHelper$EffectiveDiffOperation.perform(DefaultPullRequestRefHelper.java:495) ~[na:na]
	at com.atlassian.stash.internal.scm.git.pull.DefaultPullRequestRefHelper$AbstractOperation.perform(DefaultPullRequestRefHelper.java:461) ~[na:na]
	at com.atlassian.stash.internal.concurrent.ClusterMappedLock.withLock(ClusterMappedLock.java:49) ~[bitbucket-service-impl-4.3.2.jar:na]
	at com.atlassian.stash.internal.concurrent.HazelcastPullRequestLock.withLock(HazelcastPullRequestLock.java:25) ~[bitbucket-service-impl-4.3.2.jar:na]
	at com.atlassian.stash.internal.scm.git.pull.DefaultPullRequestRefHelper.withLock(DefaultPullRequestRefHelper.java:442) ~[na:na]
	at com.atlassian.stash.internal.scm.git.pull.DefaultPullRequestRefHelper.access$300(DefaultPullRequestRefHelper.java:50) ~[na:na]
	at com.atlassian.stash.internal.scm.git.pull.DefaultPullRequestRefHelper$EffectiveDiffOperation.call(DefaultPullRequestRefHelper.java:507) ~[na:na]
	at com.atlassian.stash.internal.scm.git.pull.DefaultPullRequestRefHelper$EffectiveDiffOperation.call(DefaultPullRequestRefHelper.java:495) ~[na:na]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_72]
	at com.atlassian.util.concurrent.ConcurrentOperationMapImpl$CallerRunsFuture.get(ConcurrentOperationMapImpl.java:63) ~[atlassian-util-concurrent-3.0.0.jar:na]
	at com.atlassian.util.concurrent.ConcurrentOperationMapImpl.runOperation(ConcurrentOperationMapImpl.java:51) ~[atlassian-util-concurrent-3.0.0.jar:na]
	at com.atlassian.stash.internal.scm.git.pull.DefaultPullRequestRefHelper.resolveEffectiveDiff(DefaultPullRequestRefHelper.java:100) ~[na:na]
	at com.atlassian.stash.internal.scm.git.DefaultGitPullRequestCommandFactory.resolveEffectiveDiff(DefaultGitPullRequestCommandFactory.java:250) ~[na:na]
	at com.atlassian.stash.internal.scm.git.DefaultGitPullRequestCommandFactory.changes(DefaultGitPullRequestCommandFactory.java:112) ~[na:na]
	at com.atlassian.stash.internal.scm.git.DefaultGitPullRequestCommandFactory.changes(DefaultGitPullRequestCommandFactory.java:49) ~[na:na]
	at com.atlassian.stash.internal.scm.PluginScmPullRequestCommandFactory.changes(PluginScmPullRequestCommandFactory.java:41) ~[bitbucket-service-impl-4.3.2.jar:na]
	at com.atlassian.stash.internal.pull.DefaultPullRequestService.streamChanges(DefaultPullRequestService.java:746) ~[bitbucket-service-impl-4.3.2.jar:na]
	at com.atlassian.plugin.util.ContextClassLoaderSettingInvocationHandler.invoke(ContextClassLoaderSettingInvocationHandler.java:30) ~[atlassian-plugins-core-4.0.4.jar:na]
	at org.eclipse.gemini.blueprint.service.importer.support.internal.aop.ServiceInvoker.doInvoke(ServiceInvoker.java:56) ~[na:na]
	at org.eclipse.gemini.blueprint.service.importer.support.internal.aop.ServiceInvoker.invoke(ServiceInvoker.java:60) ~[na:na]
	at org.eclipse.gemini.blueprint.service.util.internal.aop.ServiceTCCLInterceptor.invokeUnprivileged(ServiceTCCLInterceptor.java:70) ~[na:na]
	at org.eclipse.gemini.blueprint.service.util.internal.aop.ServiceTCCLInterceptor.invoke(ServiceTCCLInterceptor.java:53) ~[na:na]
	at org.eclipse.gemini.blueprint.service.importer.support.LocalBundleContextAdvice.invoke(LocalBundleContextAdvice.java:57) ~[na:na]
	at com.atlassian.stash.internal.rest.pull.PullRequestChangeResource$1.write(PullRequestChangeResource.java:76) ~[na:na]
	at com.atlassian.bitbucket.rest.util.JsonStreamingOutput.write(JsonStreamingOutput.java:22) ~[na:na]
	at com.atlassian.stash.internal.rest.filter.StreamingOutputResponseFilter$ExceptionMappingStreamingOutput.write(StreamingOutputResponseFilter.java:46) ~[na:na]
	at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:26) ~[na:na]
	at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:26) ~[na:na]
	at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:26) ~[na:na]
	at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:26) ~[na:na]
	at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:26) ~[na:na]
	... 20 common frames omitted

Cause

This error indicates that the JDK is not able to load a particular library that handles file handling, this is caused by a incomplete/broken installation of Java.

Resolution

Re-install another instance of the JDK and point Bitbucket Server to it.

Last modified on Mar 30, 2016

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