sun.net.www.protocol.http.HttpURLConnection cannot be cast to javax.net.ssl.HttpsURLConnection Error in Git repositories
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. 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
After being updated to Bamboo 5.8.1 this error is being thrown on an attempted connection to Stash:
Git checkouts fail for builds.
Git commits fail to trigger builds.
The following appears in the atlassian-bamboo.log
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com.atlassian.bamboo.repository.RepositoryException: java.lang.RuntimeException: com.atlassian.bamboo.repository.RepositoryException: sun.net.www.protocol.http.HttpURLConnection cannot be cast to javax.net.ssl.HttpsURLConnection
at com.atlassian.bamboo.v2.trigger.DefaultChangeDetectionManager.collectChangesSinceLastBuildInternal(DefaultChangeDetectionManager.java:398)
at com.atlassian.bamboo.v2.trigger.DefaultChangeDetectionManager.collectChangesSinceRevisions(DefaultChangeDetectionManager.java:286)
at com.atlassian.bamboo.v2.trigger.DefaultChangeDetectionManager.collectChangesSinceRevisions(DefaultChangeDetectionManager.java:185)
at com.atlassian.bamboo.v2.trigger.DefaultChangeDetectionManager.collectAllChangesSinceLastBuild(DefaultChangeDetectionManager.java:142)
at com.atlassian.bamboo.v2.trigger.ManualBuildDetectionAction.performDelayedChangeDetection(ManualBuildDetectionAction.java:172)
at com.atlassian.bamboo.chains.ChainExecutionManagerImpl$2.getChainState(ChainExecutionManagerImpl.java:224)
at com.atlassian.bamboo.chains.ChainExecutionManagerImpl.tryStartChainState(ChainExecutionManagerImpl.java:277)
at com.atlassian.bamboo.chains.ChainExecutionManagerImpl.delayedStart(ChainExecutionManagerImpl.java:213)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
at com.sun.proxy.$Proxy124.delayedStart(Unknown Source)
at com.atlassian.bamboo.plan.PlanExecutionManagerImpl$2$1$1$1.run(PlanExecutionManagerImpl.java:430)
at com.atlassian.bamboo.util.CacheAwareness.whileReadingThroughCaches(CacheAwareness.java:85)
at com.atlassian.bamboo.util.CacheAwareness.whileReadingThroughCaches(CacheAwareness.java:102)
at com.atlassian.bamboo.plan.PlanExecutionManagerImpl$2$1$1.call(PlanExecutionManagerImpl.java:425)
at com.atlassian.bamboo.plan.PlanExecutionManagerImpl$2$1$1.call(PlanExecutionManagerImpl.java:417)
at com.atlassian.util.concurrent.ManagedLocks$ManagedLockImpl.withLock(ManagedLocks.java:312)
at com.atlassian.bamboo.plan.PlanExecutionLockServiceImpl.lock(PlanExecutionLockServiceImpl.java:85)
at com.atlassian.bamboo.plan.PlanExecutionManagerImpl.doWithProcessLock(PlanExecutionManagerImpl.java:805)
at com.atlassian.bamboo.plan.PlanExecutionManagerImpl.access$300(PlanExecutionManagerImpl.java:128)
at com.atlassian.bamboo.plan.PlanExecutionManagerImpl$2$1.run(PlanExecutionManagerImpl.java:411)
at com.atlassian.bamboo.utils.BambooRunnables$1.run(BambooRunnables.java:49)
at com.atlassian.bamboo.security.ImpersonationHelper.runWith(ImpersonationHelper.java:31)
at com.atlassian.bamboo.security.ImpersonationHelper.runWithSystemAuthority(ImpersonationHelper.java:20)
at com.atlassian.bamboo.security.ImpersonationHelper$1.run(ImpersonationHelper.java:52)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: com.atlassian.bamboo.repository.RepositoryException: sun.net.www.protocol.http.HttpURLConnection cannot be cast to javax.net.ssl.HttpsURLConnection
at com.atlassian.bamboo.executor.RetryingTaskExecutor.rerun(RetryingTaskExecutor.java:132)
at com.atlassian.bamboo.executor.RetryingTaskExecutor.runTask(RetryingTaskExecutor.java:88)
at com.atlassian.bamboo.executor.RetryingTaskExecutor.retry(RetryingTaskExecutor.java:191)
at com.atlassian.bamboo.executor.RetryingTaskExecutor.retry(RetryingTaskExecutor.java:176)
at com.atlassian.bamboo.v2.trigger.DefaultChangeDetectionManager.collectionChangesWithRetry(DefaultChangeDetectionManager.java:501)
at com.atlassian.bamboo.v2.trigger.DefaultChangeDetectionManager.collectChangesSinceLastBuildInternal(DefaultChangeDetectionManager.java:358)
... 33 more
Caused by: com.atlassian.bamboo.repository.RepositoryException: sun.net.www.protocol.http.HttpURLConnection cannot be cast to javax.net.ssl.HttpsURLConnection
at com.atlassian.bamboo.plugins.git.GitRepository.collectChangesSinceLastBuild(GitRepository.java:342)
at com.atlassian.bamboo.plugins.git.GitRepository.collectChangesSinceLastBuild(GitRepository.java:214)
at com.atlassian.bamboo.v2.trigger.DefaultChangeDetectionManager$2.call(DefaultChangeDetectionManager.java:506)
at com.atlassian.bamboo.v2.trigger.DefaultChangeDetectionManager$2.call(DefaultChangeDetectionManager.java:502)
at com.atlassian.bamboo.executor.RetryingTaskExecutor.rerun(RetryingTaskExecutor.java:108)
... 38 more
Caused by: java.lang.ClassCastException: sun.net.www.protocol.http.HttpURLConnection cannot be cast to javax.net.ssl.HttpsURLConnection
at org.eclipse.jgit.transport.http.JDKHttpConnection.configure(JDKHttpConnection.java:191)
at com.atlassian.bamboo.plugins.git.jgit.transport.http.AllTrustingHttpConnectionFactory.customizeConnection(AllTrustingHttpConnectionFactory.java:74)
at com.atlassian.bamboo.plugins.git.jgit.transport.http.AllTrustingHttpConnectionFactory.create(AllTrustingHttpConnectionFactory.java:65)
at org.eclipse.jgit.transport.TransportHttp.httpOpen(TransportHttp.java:544)
at org.eclipse.jgit.transport.TransportHttp.httpOpen(TransportHttp.java:529)
at org.eclipse.jgit.transport.TransportHttp.connect(TransportHttp.java:468)
at org.eclipse.jgit.transport.TransportHttp.openFetch(TransportHttp.java:309)
at com.atlassian.bamboo.plugins.git.JGitOperationHelper.withFetchConnection(JGitOperationHelper.java:928)
at com.atlassian.bamboo.plugins.git.JGitOperationHelper.obtainLatestRevision(JGitOperationHelper.java:439)
at com.atlassian.bamboo.plugins.git.JGitOperationHelper.access$100(JGitOperationHelper.java:71)
at com.atlassian.bamboo.plugins.git.JGitOperationHelper$4.doWithRepository(JGitOperationHelper.java:425)
at com.atlassian.bamboo.plugins.git.JGitOperationHelper$4.doWithRepository(JGitOperationHelper.java:420)
at com.atlassian.bamboo.plugins.git.JGitOperationHelper.withRepository(JGitOperationHelper.java:878)
at com.atlassian.bamboo.plugins.git.JGitOperationHelper.obtainLatestRevision(JGitOperationHelper.java:420)
at com.atlassian.bamboo.plugins.git.GitRepository.collectChangesSinceLastBuild(GitRepository.java:226)
... 42 moreCause
Occurs when native JGit is in use.
Workaround
This issue is related with the native git installation (Jgit) used by default by Bamboo.
To workaround this, install your own version of Git on the Bamboo server and define this Git binary in Bamboo as a capability.
This should get Bamboo off the bundled jgit version and resolve the issue.
Resolution
Please follow the issue below for a final resolution:
Updated on April 15, 2025
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