请问java.lang.ClassCircularityError是什么错误？（急！！！）
17:22:22,812 ERROR [STDERR] java.lang.ClassCircularityError: java/sql/DriverMana
ger
17:22:22,859 ERROR [STDERR] at org.jboss.resource.adapter.jdbc.local.LocalMa
nagedConnectionFactory.isDriverLoadedForURL(LocalManagedConnectionFactory.java:4
60)
17:22:22,953 ERROR [STDERR] at org.jboss.resource.adapter.jdbc.local.LocalMa
nagedConnectionFactory.checkDriver(LocalManagedConnectionFactory.java:420)
17:22:23,000 ERROR [STDERR] at org.jboss.resource.adapter.jdbc.local.LocalMa
nagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.jav
a:130)
17:22:23,093 ERROR [STDERR] at org.jboss.resource.connectionmanager.Internal
ManagedConnectionPool.createConnection(InternalManagedConnectionPool.java:236)
17:22:23,156 ERROR [STDERR] at org.jboss.resource.connectionmanager.Internal
ManagedConnectionPool.getConnection(InternalManagedConnectionPool.java:101)
17:22:23,234 ERROR [STDERR] at org.jboss.resource.connectionmanager.Internal
ManagedConnectionPool.fillToMin(InternalManagedConnectionPool.java:202)
17:22:23,296 ERROR [STDERR] at org.jboss.resource.connectionmanager.PoolFill
er$1.run(PoolFiller.java:63)
17:22:23,359 ERROR [STDERR] at java.lang.Thread.run(Thread.java:534)
[解决办法]
JBOSS中这种错误我以前遇到过，有可能还会导致内存溢出。查资料说是JDK的BUG，计划到6.0版本修正，也不知道实现没有。
