jvm 1 | Waiting for plugin to finish shutting down: /home/oleh/workspace/plugin-Freemail/dist/Freemail.jar
jvm 1 | Exception in thread "Shutdown plugins" java.util.ConcurrentModificationException
jvm 1 | at java.util.HashMap$HashIterator.nextNode(HashMap.java:1445)
jvm 1 | at java.util.HashMap$KeyIterator.next(HashMap.java:1469)
jvm 1 | at freenet.pluginmanager.PluginManager.stop(PluginManager.java:267)
jvm 1 | at freenet.node.Node$47.realRun(Node.java:2500)
jvm 1 | at freenet.support.io.NativeThread.run(NativeThread.java:156)
Jun 16, 2019 18:26:01:377 (freenet.support.PooledExecutor$MyThread, Freemail OwnIdentity nickname fetcher(16), ERROR): Caught java.lang.IllegalStateException: zip file closed running job freenet.support.PooledExecutor$Job@509dbcd8
java.lang.IllegalStateException: zip file closed
at java.util.zip.ZipFile.ensureOpen(ZipFile.java:686)
at java.util.zip.ZipFile.getEntry(ZipFile.java:315)
at java.util.jar.JarFile.getEntry(JarFile.java:240)
at java.util.jar.JarFile.getJarEntry(JarFile.java:223)
at freenet.support.JarClassLoader.findClass(JarClassLoader.java:130)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.freenetproject.freemail.wot.ConcurrentWoTConnection$WoTConnectionImpl.getAllOwnIdentities(ConcurrentWoTConnection.java:185)
at org.freenetproject.freemail.wot.ConcurrentWoTConnection.getAllOwnIdentities(ConcurrentWoTConnection.java:55)
at org.freenetproject.freemail.FreemailPlugin$1.run(FreemailPlugin.java:101)
at freenet.support.PooledExecutor$MyThread.innerRun(PooledExecutor.java:249)
at freenet.support.PooledExecutor$MyThread.realRun(PooledExecutor.java:189)
at freenet.support.io.NativeThread.run(NativeThread.java:156)