[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2218) java.util.ConcurrentModificationException at org.hibernate.pretty.Printer.toString(Printer.java:90)
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http://opensource.atlassian.com/projects/hibernate/browse/HHH-2218?page=c...
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Max Rydahl Andersen commented on HHH-2218:
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so as probably have been mentioned on those cases and forum postings this occurs because
the session have been changed while the printing occurs.
That can happen for three reasons:
1) concurrent access from another thread
2) a bug in the printing that somehow causes initialization of properties (or you as the
user in methods that should not access the session)
You will need to present a *minimal* test case that shows this is a bug in hibernate.
java.util.ConcurrentModificationException at
org.hibernate.pretty.Printer.toString(Printer.java:90)
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Key: HHH-2218
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2218
Project: Hibernate3
Type: Bug
Components: core
Versions: 3.1.3
Environment: Hibernate 3.1.3, spring 2.1.8 on Jboss 4.0.2 with Oracle 10g
Reporter: rm
Similar issues have been logged since May 2005 and have been marked as 'Fixed' by
Gavin especially for Session.toString() related cases. However, I am also facing similar
issues in Printer.toString()...
The saving grace is that when I set the debug level to INFO, the problem goes away...
Am copy/pasting the relevent stacktrace...I have also debugged this on eclipse and the
exact location is the call to "new Printer(....)" in
AbstractFlushingEventListener.java
java.util.ConcurrentModificationException
10:07:28,421 INFO [STDOUT] at
java.util.HashMap$HashIterator.nextEntry(HashMap.java:787)
10:07:28,421 INFO [STDOUT] at java.util.HashMap$ValueIterator.next(HashMap.java:817)
10:07:28,421 INFO [STDOUT] at org.hibernate.pretty.Printer.toString(Printer.java:90)
10:07:28,421 INFO [STDOUT] at
org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:97)
10:07:28,421 INFO [STDOUT] at
org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:35)
10:07:28,421 INFO [STDOUT] at
org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:954)
10:07:28,421 INFO [STDOUT] at
org.hibernate.impl.SessionImpl.list(SessionImpl.java:1099)
10:07:28,421 INFO [STDOUT] at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
PS: This is my first attempt at logging issues at JIRA. Kindly point out any deficiencies
or irregularities in this attempt.
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