java.lang.OutOfMemoryError: Java heap space." > Could anyone help me understand what is causing this problem and how to > remedy this problem? Copy of few lines from "output.log" file. > "Executing command: /opt/opennms/bin/runjava -r -- > -Dopennms.home=/opt/opennms -Xmx256m -jar > /opt/opennms/lib/opennms_bootstrap.jar start > Exception in thread "Timer-3411" java.util.ConcurrentModificationException >      at java.util.Hashtable$Enumerator.next(Hashtable.java:1020) >      at org.snmp4j.Snmp.close(Unknown Source) >      at > org.opennms.netmgt.snmp.snmp4j.Snmp4JWalker.close(Snmp4JWalker.java:223) >      at org.opennms.netmgt.snmp.SnmpWalker.finish(SnmpWalker.java:149) >      at > org.opennms.netmgt.snmp.SnmpWalker.handleTimeout(SnmpWalker.java:143) >      at > org.opennms.netmgt.snmp.snmp4j.Snmp4JWalker.access$1000(Snmp4JWalker.java:58) >      at > org.opennms.netmgt.snmp.snmp4j.Snmp4JWalker$Snmp4JResponseListener.onResponse(Snmp4JWalker.java:163) > at org.snmp4j.Snmp$PendingRequest.run(Unknown Source)

nabble.com | 6 months ago
tip
Your exception is missing from the Samebug knowledge base.
Here are the best solutions we found on the Internet.
Click on the to mark the helpful solution and get rewards for you help.
  1. 0

    OpenNMS - discuss - java.lang.OutOfMemoryError: Java heap space

    nabble.com | 6 months ago
    java.lang.OutOfMemoryError: Java heap space." > Could anyone help me understand what is causing this problem and how to > remedy this problem? Copy of few lines from "output.log" file. > "Executing command: /opt/opennms/bin/runjava -r -- > -Dopennms.home=/opt/opennms -Xmx256m -jar > /opt/opennms/lib/opennms_bootstrap.jar start > Exception in thread "Timer-3411" java.util.ConcurrentModificationException >      at java.util.Hashtable$Enumerator.next(Hashtable.java:1020) >      at org.snmp4j.Snmp.close(Unknown Source) >      at > org.opennms.netmgt.snmp.snmp4j.Snmp4JWalker.close(Snmp4JWalker.java:223) >      at org.opennms.netmgt.snmp.SnmpWalker.finish(SnmpWalker.java:149) >      at > org.opennms.netmgt.snmp.SnmpWalker.handleTimeout(SnmpWalker.java:143) >      at > org.opennms.netmgt.snmp.snmp4j.Snmp4JWalker.access$1000(Snmp4JWalker.java:58) >      at > org.opennms.netmgt.snmp.snmp4j.Snmp4JWalker$Snmp4JResponseListener.onResponse(Snmp4JWalker.java:163) > at org.snmp4j.Snmp$PendingRequest.run(Unknown Source)
  2. 0

    Improving select performace

    Google Groups | 4 years ago | Richard Kolb
    java.lang.OutOfMemoryError: Java heap space

    Root Cause Analysis

    1. java.lang.OutOfMemoryError

      Java heap space." > Could anyone help me understand what is causing this problem and how to > remedy this problem? Copy of few lines from "output.log" file. > "Executing command: /opt/opennms/bin/runjava -r -- > -Dopennms.home=/opt/opennms -Xmx256m -jar > /opt/opennms/lib/opennms_bootstrap.jar start > Exception in thread "Timer-3411" java.util.ConcurrentModificationException >      at java.util.Hashtable$Enumerator.next(Hashtable.java:1020) >      at org.snmp4j.Snmp.close(Unknown Source) >      at > org.opennms.netmgt.snmp.snmp4j.Snmp4JWalker.close(Snmp4JWalker.java:223) >      at org.opennms.netmgt.snmp.SnmpWalker.finish(SnmpWalker.java:149) >      at > org.opennms.netmgt.snmp.SnmpWalker.handleTimeout(SnmpWalker.java:143) >      at > org.opennms.netmgt.snmp.snmp4j.Snmp4JWalker.access$1000(Snmp4JWalker.java:58) >      at > org.opennms.netmgt.snmp.snmp4j.Snmp4JWalker$Snmp4JResponseListener.onResponse(Snmp4JWalker.java:163) > at org.snmp4j.Snmp$PendingRequest.run(Unknown Source)

      at java.util.TimerThread.mainLoop()
    2. Java RT
      TimerThread.run
      1. java.util.TimerThread.mainLoop(Timer.java:512)
      2. java.util.TimerThread.run(Timer.java:462)
      2 frames