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  1. JGroups
  2. JGRP-1636

java.lang.ArrayIndexOutOfBoundsException when trying to accure lock

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    • Icon: Major Major
    • 3.4
    • 3.3
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      private Lock masterLock;
      ...

      public Node() throws Exception

      { this.channel = new JChannel(Node.class.getClassLoader().getResourceAsStream("udp.xml")); this.channel.setReceiver(this); this.channel.connect("master-cluster"); this.lockService = new LockService(this.channel); }

      ....
      private void getLock()

      { masterLock = lockService.getLock("master"); //Happens here masterLock.lock(); isMaster.set(true); LOG.info("I have become the master!"); }
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      private Lock masterLock; ... public Node() throws Exception { this.channel = new JChannel(Node.class.getClassLoader().getResourceAsStream("udp.xml")); this.channel.setReceiver(this); this.channel.connect("master-cluster"); this.lockService = new LockService(this.channel); } .... private void getLock() { masterLock = lockService.getLock("master"); //Happens here masterLock.lock(); isMaster.set(true); LOG.info("I have become the master!"); }

      Getting java.lang.ArrayIndexOutOfBoundsException
      java.lang.ArrayIndexOutOfBoundsException: -4
      at org.jgroups.protocols.Locking._getLock(Locking.java:355)
      at org.jgroups.protocols.Locking.handleLockRequest(Locking.java:424)

      that happens when lock_name.hashCode() < 0

      protected Lock _getLock(String lock_name)

      { int index=lock_name != null? lock_name.hashCode() % locks.length : 0; return locks[index]; }

            rhn-engineering-bban Bela Ban
            uzbssr Tim Tim (Inactive)
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              Created:
              Updated:
              Resolved: