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  1. JBoss Enterprise Application Platform 4 and 5
  2. JBPAPP-10843

ConcurrentModificationException in JBoss Cache printCacheDetails

    Details

    • Affects:
      Release Notes
    • Release Notes Docs Status:
      Not Yet Documented
    • Docs QE Status:
      NEW

      Description

      printCacheDetails does not acquire locks on nodes, so can encounter a ConcurrentModificationException if another thread modifies the node while it's being read.

      java.util.ConcurrentModificationException
      at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
      at java.util.HashMap$EntryIterator.next(HashMap.java:834)
      at java.util.HashMap$EntryIterator.next(HashMap.java:832)
      at java.util.AbstractMap.toString(AbstractMap.java:485)
      at java.lang.String.valueOf(String.java:2826)
      at java.lang.StringBuilder.append(StringBuilder.java:115)
      at java.util.AbstractMap.toString(AbstractMap.java:490)
      at java.lang.String.valueOf(String.java:2826)
      at java.lang.StringBuilder.append(StringBuilder.java:115)
      at org.jboss.cache.UnversionedNode.printDetailsInMap(UnversionedNode.java:562)
      at org.jboss.cache.UnversionedNode.printDetails(UnversionedNode.java:313)
      at org.jboss.cache.UnversionedNode.printDetailsInMap(UnversionedNode.java:566)
      at org.jboss.cache.UnversionedNode.printDetails(UnversionedNode.java:313)
      at org.jboss.cache.UnversionedNode.printDetailsInMap(UnversionedNode.java:566)
      at org.jboss.cache.UnversionedNode.printDetails(UnversionedNode.java:313)
      at org.jboss.cache.DataContainerImpl.printDetails(DataContainerImpl.java:502)
      at org.jboss.cache.util.CachePrinter.printCacheDetails(CachePrinter.java:56)
      at org.jboss.cache.jmx.CacheJmxWrapper.printCacheDetails(CacheJmxWrapper.java:141)

      There do not currently appear to be any other side effects other than the printCacheDetails call throwing the ConcurrentModificationException.

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                • Assignee:
                  dereed Dennis Reed
                  Reporter:
                  dereed Dennis Reed
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                  • Created:
                    Updated:
                    Resolved: