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  1. JDK
  2. JDK-6896157

unsynchronized hashmap in com.sun.corba.se.impl.transport.SelectorImpl.createReaderThread

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    • b10
    • sparc
    • solaris_10
    • Verified

    Backports

      Description

        hreads consuming high cpu tracked down to unsynchronized hashmap
        usage in com.sun.corba.se.impl.transport.SelectorImpl.createReaderThread.

        ustomer make this change to their jdk 5.0 based jar file.
        It is reported that with customized changes as shown below (lines with
        keyword CSB), the issue is resolved.

        /*
        * @(#)SelectorImpl.java 1.22 09/04/01
        *
        * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
        * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
        */

        ...
        import java.util.Map; // Added this line CSB
        ...
        private Map readerThreads; // Used to be HashMap CSB
        ...
        readerThreads = (Map) java.util.Collections.synchronizedMap(new HashMap()); // Use synchronizedMap CSB

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-2189233 unsynchronized hashmap in com.sun.corba.se.impl.transport.SelectorImpl.createReaderThread

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-2190326 unsynchronized hashmap in com.sun.corba.se.impl.transport.SelectorImpl.createReaderThread

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-2190771 unsynchronized hashmap in com.sun.corba.se.impl.transport.SelectorImpl.createReaderThread

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-2185681 unsynchronized hashmap in com.sun.corba.se.impl.transport.SelectorImpl.createReaderThread

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-2190174 unsynchronized hashmap in com.sun.corba.se.impl.transport.SelectorImpl.createReaderThread

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-2191908 unsynchronized hashmap in com.sun.corba.se.impl.transport.SelectorImpl.createReaderThread

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-2185680 unsynchronized hashmap in com.sun.corba.se.impl.transport.SelectorImpl.createReaderThread

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Closed

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-2192869 unsynchronized hashmap in com.sun.corba.se.impl.transport.SelectorImpl.createReaderThread

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Closed

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                skoppar Sunita Koppar (Inactive)
                lkchow Lawrence Chow
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                  Updated:
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