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  1. JBoss Enterprise Application Platform
  2. JBEAP-14616

[GSS](7.1.z) JBJCA-1371 - Deadlock for threads executing org.jboss.jca.adapters.jdbc.xa.XAManagedConnectionFactory.isEqual

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    • EAP 7.1.3

    Description

      Two or more threads hold one lock on an instance of java.util.Collections$SynchronizedMap and attempt to obtain a lock on a different instance (e.g. locks on 0x00000001d0d08bd8 and 0x00000001cea22628 in the example below)

      "thread-one" ...
      java.lang.Thread.State: BLOCKED (on object monitor)
      at java.util.Collections$SynchronizedMap.get(Collections.java:2584)

      • waiting to lock <0x00000001cea22628> (a java.util.Collections$SynchronizedMap)
        at java.util.AbstractMap.equals(AbstractMap.java:495)
        at java.util.Collections$SynchronizedMap.equals(Collections.java:2631)
      • locked <0x00000001d0d08bd8> (a java.util.Collections$SynchronizedMap)
        at org.jboss.jca.adapters.jdbc.xa.XAManagedConnectionFactory.isEqual(XAManagedConnectionFactory.java:563)
      • locked <0x00000001d0d08bd8> (a java.util.Collections$SynchronizedMap)
        at org.jboss.jca.adapters.jdbc.xa.XAManagedConnectionFactory.equals(XAManagedConnectionFactory.java:598)
        at org.jboss.jca.adapters.jdbc.BaseWrapperManagedConnectionFactory$SubjectActions.doCheck(BaseWrapperManagedConnectionFactory.java:1397)
        at org.jboss.jca.adapters.jdbc.BaseWrapperManagedConnectionFactory$SubjectActions.addMatchingProperties(BaseWrapperManagedConnectionFactory.java:1508)
        at org.jboss.jca.adapters.jdbc.BaseWrapperManagedConnectionFactory.getConnectionProperties(BaseWrapperManagedConnectionFactory.java:1135)
        at org.jboss.jca.adapters.jdbc.xa.XAManagedConnectionFactory.matchManagedConnections(XAManagedConnectionFactory.java:533)
        ...
        at org.jboss.jca.adapters.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:138)
        at org.jboss.as.connector.subsystems.datasources.WildFlyDataSource.getConnection(WildFlyDataSource.java:66)
        ...

      "thread-two" ...
      java.lang.Thread.State: BLOCKED (on object monitor)
      at java.util.Collections$SynchronizedMap.size(Collections.java:2572)

      • waiting to lock <0x00000001d0d08bd8> (a java.util.Collections$SynchronizedMap)
        at java.util.AbstractMap.equals(AbstractMap.java:482)
        at java.util.Collections$SynchronizedMap.equals(Collections.java:2631)
      • locked <0x00000001cea22628> (a java.util.Collections$SynchronizedMap)
        at org.jboss.jca.adapters.jdbc.xa.XAManagedConnectionFactory.isEqual(XAManagedConnectionFactory.java:563)
      • locked <0x00000001cea22628> (a java.util.Collections$SynchronizedMap)
        at org.jboss.jca.adapters.jdbc.xa.XAManagedConnectionFactory.equals(XAManagedConnectionFactory.java:598)
        ... [same stack as thread-one above] ...
        at org.jboss.jca.adapters.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:138)
        at org.jboss.as.connector.subsystems.datasources.WildFlyDataSource.getConnection(WildFlyDataSource.java:66)
        ...

      Attachments

        Issue Links

          blocks

          Bug - A problem that impairs or prevents the functions of the product. JBEAP-14519 [GSS](7.1.z) - WFLY-10181 Deadlock for threads executing org.jboss.jca.adapters.jdbc.xa.XAManagedConnectionFactory.isEqual (EAP Full)

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed
          clones

          Bug - A problem that impairs or prevents the functions of the product. WFLY-10181 Deadlock for threads executing org.jboss.jca.adapters.jdbc.xa.XAManagedConnectionFactory.isEqual (WFLY)

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed
          is cloned by

          Bug - A problem that impairs or prevents the functions of the product. JBJCA-1371 Deadlock for threads executing org.jboss.jca.adapters.jdbc.xa.XAManagedConnectionFactory.isEqual

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved
          is incorporated by

          Component Upgrade - A task tracking an update to a bundled component or revision of component upstream of the project. JBEAP-14438 [GSS](7.1.z) Upgrade Ironjacamar from 1.4.8 to 1.4.9

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed

          Activity

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              flaviarnn Flavia Rainone
              rhn-engineering-lgao Lin Gao
              Jiří Bílek Jiří Bílek (Inactive)
              Jiří Bílek Jiří Bílek (Inactive)
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