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2020-07-11 14:18:29,465+1000 JIRA-Bootstrap ERROR [c.k.j.p.keplercf.admin.KCFLauncher] Cannot copy the JSP. Error was:java.io.FileNotFoundException: /opt/atlassian/redradish_jira/8.10.0/atlassian-jira/secure/popups/ksil_userpicker.jsp (Permission denied)
java.io.FileNotFoundException: /opt/atlassian/redradish_jira/8.10.0/atlassian-jira/secure/popups/ksil_userpicker.jsp (Permission denied)
at java.base/java.io.FileOutputStream.open0(Native Method)
at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298)
at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:237)
at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:187)
at com.keplerrominfo.jira.plugins.keplercf.admin.KCFLauncher.copyJSPFile(KCFLauncher.java:346)
at com.keplerrominfo.jira.plugins.keplercf.admin.KCFLauncher.launch(KCFLauncher.java:188)
at com.keplerrominfo.refapp.launcher.AbstractDependentPluginLauncher.tryToLaunch(AbstractDependentPluginLauncher.java:139)
at com.keplerrominfo.refapp.launcher.AbstractDependentPluginLauncher.handleEvent(AbstractDependentPluginLauncher.java:85)
at com.keplerrominfo.jira.plugins.keplercf.admin.KCFLauncher.onPluginEvent(KCFLauncher.java:215)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.atlassian.event.internal.SingleParameterMethodListenerInvoker.invoke(SingleParameterMethodListenerInvoker.java:42)
at com.atlassian.event.internal.AsynchronousAbleEventDispatcher.lambda$null$0(AsynchronousAbleEventDispatcher.java:37)
at com.atlassian.event.internal.AsynchronousAbleEventDispatcher.dispatch(AsynchronousAbleEventDispatcher.java:85)
at com.atlassian.event.internal.LockFreeEventPublisher$Publisher.dispatch(LockFreeEventPublisher.java:220)
at com.atlassian.event.internal.LockFreeEventPublisher.publish(LockFreeEventPublisher.java:96)
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2020-07-11 12:26:36,465+1000 UpmAsynchronousTaskManager:thread-2 ERROR jturner 736x198x1 1uhj4pl 127.0.0.1 /rest/plugins/1.0/updates/all [c.k.j.p.keplercf.admin.KCFLauncher] You must manually copy the ksil_userpicker.jsp file into the correct directory (read the manual). Destination path: JIRA-HOME/atlassian-jira/secure/popups/ksil_userpicker.jsp
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It appears this is caused by the SIL Engine plugin:
SIL Engine is a "library plugin", a dependency of other CPrime plugins, which I had experimented with in the past (Power Custom Fields, I think). The problem with "library plugins" is that they hang around even after the last plugin that used them is uninstalled. Thus; SIL Engine on my system.
SIL Engine is attempting to copy a JSP to JIRA's app directory, and failing due to permissions.
Digression: Permissions in your /opt/atlassian/Jira directory
The attempted copy failed ('Permission Denied'), and rightly so. JIRA (and any webapp) should absolutely not be allowed to write to its own installation directory. Back in 2009 I had not learned this. I was a volunteer administrator of https://jira.apache.org, and left the app directory writable, which contributed to the server being hacked:
Countless PHP hacks have been enabled to not following this rule, due to apps like Wordpress encouraging the anti-pattern of allowing the app to upgrade itself.
But what about ksil_userpicker.jsp?
There is nothing on the web about ksil_userpicker.jsp, so I contacted CPrime. Developer Radu Dumitriu replied:
That file was necessary because, at the time, Jira didn't have the ability to let us create a user picker panel (3.x). That's the solution we came with, so obviously it remained unchanged. We will change that when we'll publish a major version of the addon (hopefully).
So the answer to both your questions is 'history'
So it looks innocuous. Still, I think it best to ignore the error until usage actually demands this JSP's presence. If, like for me, SIL Engine is a relic, you would be best off uninstalling it.