[ 
https://issues.apache.org/jira/browse/SOLR-14525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17121453#comment-17121453
 ] 

Chris M. Hostetter commented on SOLR-14525:
-------------------------------------------

this change seems to be causing trivially reproducible failures in 
PackageManagerCLITest (regardless of seed) due to 
ConcurrentModificationException of an ArrayList ...

{noformat}
   [junit4]   2> 8061 ERROR (qtp1868832549-59) [n:127.0.0.1:45103_solr     ] 
o.a.s.a.AnnotatedApi Error executing command 
   [junit4]   2>           => java.lang.reflect.InvocationTargetException
   [junit4]   2>        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   [junit4]   2> java.lang.reflect.InvocationTargetException: null
   [junit4]   2>        at 
jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
   [junit4]   2>        at 
jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
 ~[?:?]
   [junit4]   2>        at 
jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 ~[?:?]
   [junit4]   2>        at java.lang.reflect.Method.invoke(Method.java:566) 
~[?:?]
   [junit4]   2>        at 
org.apache.solr.api.AnnotatedApi$Cmd.invoke(AnnotatedApi.java:250) ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.api.AnnotatedApi.call(AnnotatedApi.java:179) ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.api.V2HttpCall.handleAdmin(V2HttpCall.java:339) ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:809) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:562) ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:415)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:345)
 ~[java/:?]
   [junit4]   2>        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
 ~[jetty-servlet-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.apache.solr.client.solrj.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:166)
 ~[java/:?]
   [junit4]   2>        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604)
 ~[jetty-servlet-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:545) 
~[jetty-servlet-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
 ~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1610)
 ~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
 ~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1300)
 ~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
 ~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:485) 
~[jetty-servlet-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1580)
 ~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
 ~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1215)
 ~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) 
~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) 
~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:322)
 ~[jetty-rewrite-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:717) 
~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) 
~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.Server.handle(Server.java:500) 
~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383) 
~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:547) 
~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375) 
~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:273) 
~[jetty-server-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
 ~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) 
~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117) 
~[jetty-io-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
 ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
 ~[jetty-util-9.4.27.v20200227.jar:9.4.27.v20200227]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> Caused by: java.util.ConcurrentModificationException
   [junit4]   2>        at 
java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1042) ~[?:?]
   [junit4]   2>        at java.util.ArrayList$Itr.next(ArrayList.java:996) 
~[?:?]
   [junit4]   2>        at 
org.apache.solr.pkg.PackageListeners.invokeListeners(PackageListeners.java:77) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.pkg.PackageListeners.packagesUpdated(PackageListeners.java:69) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.pkg.PackageLoader.refreshPackageConf(PackageLoader.java:96) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.pkg.PackageAPI$Edit.add(PackageAPI.java:297) ~[java/:?]
   [junit4]   2>        ... 40 more

....

   [junit4]   2> 8174 INFO  
(TEST-PackageManagerCLITest.testPackageManager-seed#[6C21454A47A9D798]) [     ] 
o.a.s.SolrTestCaseJ4 ###Ending testPackageManager
   [junit4]   2> NOTE: reproduce with: ant test  
-Dtestcase=PackageManagerCLITest -Dtests.method=testPackageManager 
-Dtests.seed=6C21454A47A9D798 -Dtests.slow=true -Dtests.badapples=true 
-Dtests.locale=nb -Dtests.timezone=Asia/Pyongyang -Dtests.asserts=true 
-Dtests.file.encoding=US-ASCII
   [junit4] FAILURE 5.66s | PackageManagerCLITest.testPackageManager <<<
   [junit4]    > Throwable #1: java.lang.AssertionError: Non-zero status 
returned for: [-solrUrl, http://127.0.0.1:45103/solr, install, question-answer] 
expected:<0> but was:<1>
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([6C21454A47A9D798:6F8B0E2445470833]:0)
   [junit4]    >        at 
org.apache.solr.cloud.PackageManagerCLITest.run(PackageManagerCLITest.java:156)
   [junit4]    >        at 
org.apache.solr.cloud.PackageManagerCLITest.testPackageManager(PackageManagerCLITest.java:111)
   [junit4]    >        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   [junit4]    >        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   [junit4]    >        at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   [junit4]    >        at 
java.base/java.lang.reflect.Method.invoke(Method.java:566)
   [junit4]    >        at java.base/java.lang.Thread.run(Thread.java:834)


{noformat}

> For components loaded from packages SolrCoreAware, ResourceLoaderAware are 
> not honored
> --------------------------------------------------------------------------------------
>
>                 Key: SOLR-14525
>                 URL: https://issues.apache.org/jira/browse/SOLR-14525
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: packages
>            Reporter: Noble Paul
>            Assignee: Noble Paul
>            Priority: Major
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> inform() methods are not invoked if the plugins are loaded from packages



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