Denis Golovin created JBIDE-18451: ------------------------------------- Summary: JMX Navigator pollutes error log with NullPointerException on Update Timer Cancel event Key: JBIDE-18451 URL: https://issues.jboss.org/browse/JBIDE-18451 Project: Tools (JBoss Tools) Issue Type: Bug Components: jmx Affects Versions: 4.2.0.CR1 Environment: Fedora 20 x86_64, Java 7, Gnome 3 Reporter: Denis Golovin I see a lot of exceptions in JBDS log like one below: {code}java.lang.NullPointerException at org.jboss.tools.jmx.jvmmonitor.internal.tools.Tools.findHomeDirectoryToAddToClasspath(Tools.java:669) at org.jboss.tools.jmx.jvmmonitor.internal.tools.Tools.configureClassPathAndLibraryPath(Tools.java:691) at org.jboss.tools.jmx.jvmmonitor.internal.tools.Tools.<init>(Tools.java:77) at org.jboss.tools.jmx.jvmmonitor.internal.tools.Tools.getInstance(Tools.java:89) at org.jboss.tools.jmx.jvmmonitor.internal.tools.JvmAttachHandler.updatesActiveJvms(JvmAttachHandler.java:93) at org.jboss.tools.jmx.jvmmonitor.internal.tools.JvmAttachHandler$1.run(JvmAttachHandler.java:73) at java.util.TimerThread.mainLoop(Timer.java:555) at java.util.TimerThread.run(Timer.java:505){code} -- This message was sent by Atlassian JIRA (v6.3.1#6329)