When installing a new JIRA 7.1.0 instance from scratch and then try to install any add-on from the marketplace, the install fails and the following error is logged:
2016-02-12 13:32:17,471 UpmAsynchronousTaskManager:thread-2 WARN admin 812x6615x1 qcbkii 10.0.1.6 /rest/plugins/1.0/ [c.a.u.core.install.DefaultPluginInstallationService] com.atlassian.upm.spi.PluginInstallExcep
tion: Failed to install OBR jar artifact
com.atlassian.upm.spi.PluginInstallException: Failed to install OBR jar artifact
at com.atlassian.upm.core.install.ObrPluginInstallHandler.installPluginInternal(ObrPluginInstallHandler.java:188)
at com.atlassian.upm.core.install.AbstractPluginInstallHandler.installPlugin(AbstractPluginInstallHandler.java:64)
at com.atlassian.upm.core.install.DefaultPluginInstallationService.execute(DefaultPluginInstallationService.java:117)
at com.atlassian.upm.core.install.DefaultPluginInstallationService.install(DefaultPluginInstallationService.java:91)
at com.atlassian.upm.install.UpmPluginInstallationService.install(UpmPluginInstallationService.java:97)
at com.atlassian.upm.core.rest.resources.install.InstallTask.installFromFile(InstallTask.java:156)
at com.atlassian.upm.core.rest.resources.install.InstallFromFileTask.executeTask(InstallFromFileTask.java:37)
at com.atlassian.upm.core.rest.resources.install.InstallTask.run(InstallTask.java:81)
at com.atlassian.upm.core.async.AsynchronousTaskManager.executeTask(AsynchronousTaskManager.java:124)
at com.atlassian.upm.core.async.AsynchronousTaskManager$1.call(AsynchronousTaskManager.java:102)
at com.atlassian.upm.core.async.AsynchronousTaskManager$1.call(AsynchronousTaskManager.java:99)
at com.atlassian.sal.core.executor.ThreadLocalDelegateCallable.call(ThreadLocalDelegateCallable.java:42)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalStateException: Cannot scanForNewPlugins in state DELAYED
at com.google.common.base.Preconditions.checkState(Preconditions.java:197)
at com.atlassian.plugin.manager.DefaultPluginManager.scanForNewPlugins(DefaultPluginManager.java:854)
at com.atlassian.plugin.manager.DefaultPluginManager.installPlugins(DefaultPluginManager.java:821)
at com.atlassian.jira.plugin.JiraPluginManager.installPlugins(JiraPluginManager.java:168)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
...Restarting JIRA fixes it... Restarting JIRA before installing any add-on also prevents the error. I'm having the same error, no matter if I start a standalone instance using the SDK or if I download it from the web. Should I worry about it?
