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https://issues.apache.org/jira/browse/WOOKIE-145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12888885#action_12888885
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Scott Wilson commented on WOOKIE-145:
-------------------------------------
OK, that makes sense. I also tried the same using the old HIbernate code and
that worked fine and I couldn't replicate the error - I can only presume this
is being taken care of at a lower level, either by C3PO or Hibernate.
Certainly the user should expect this to be handled more elegantly. As far as
the user is concerned the Widget just tried to set a preference - they don't
care whether its the first time the preference is set or a subsequent operation
as its an implementation detail whether that is an INSERT or an UPDATE.
The question is where to handle this - can it be dealt with in the JPA
configuration, or the JPA implementation, or does it need fixing higher up the
stack in the Properties Controller itself?
> JPA error when Widget sets preference values
> ---------------------------------------------
>
> Key: WOOKIE-145
> URL: https://issues.apache.org/jira/browse/WOOKIE-145
> Project: Wookie
> Issue Type: Bug
> Components: Server
> Reporter: Scott Wilson
> Priority: Blocker
> Fix For: 0.8.1
>
>
> The JPA/JCR branch has a problem in the implementation of Preferences, where
> setting a preference within a widget causes a 500 error.
> To reproduce, run Wookie and open a demo widget for WookieWiki or any other
> widget using preferences.
> Here is the stack trace:
> [java] <openjpa-2.0.0-r422266:935683 fatal store error>
> org.apache.openjpa.persistence.RollbackException: The transaction has been
> rolled back. See the nested exceptions for details on the errors that
> occurred.
> [java] FailedObject:
> org.apache.wookie.beans.jpa.impl.preferencei...@27da9eda
> [java] at
> org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:583)
> [java] at
> org.apache.wookie.beans.jpa.JPAPersistenceManager.commit(JPAPersistenceManager.java:361)
> [java] at
> org.apache.wookie.server.MainFilter.doFilter(MainFilter.java:45)
> [java] at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1089)
> [java] at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)
> [java] at
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> [java] at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
> [java] at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
> [java] at
> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
> [java] at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
> [java] at org.mortbay.jetty.Server.handle(Server.java:285)
> [java] at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:502)
> [java] at
> org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:835)
> [java] at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:641)
> [java] at
> org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:202)
> [java] at
> org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:378)
> [java] at
> org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:226)
> [java] at
> org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)
> [java] Caused by: <openjpa-2.0.0-r422266:935683 fatal store error>
> org.apache.openjpa.persistence.EntityExistsException: The transaction has
> been rolled back. See the nested exceptions for details on the errors that
> occurred.
> [java] FailedObject:
> org.apache.wookie.beans.jpa.impl.preferencei...@27da9eda
> [java] at
> org.apache.openjpa.kernel.BrokerImpl.newFlushException(BrokerImpl.java:2302)
> [java] at
> org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:2139)
> [java] at
> org.apache.openjpa.kernel.BrokerImpl.flushSafe(BrokerImpl.java:2037)
> [java] at
> org.apache.openjpa.kernel.BrokerImpl.beforeCompletion(BrokerImpl.java:1955)
> [java] at
> org.apache.openjpa.kernel.LocalManagedRuntime.commit(LocalManagedRuntime.java:81)
> [java] at
> org.apache.openjpa.kernel.BrokerImpl.commit(BrokerImpl.java:1479)
> [java] at
> org.apache.openjpa.kernel.DelegatingBroker.commit(DelegatingBroker.java:925)
> [java] at
> org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:559)
> [java] ... 17 more
> [java] Caused by: <openjpa-2.0.0-r422266:935683 fatal store error>
> org.apache.openjpa.persistence.EntityExistsException: The statement was
> aborted because it would have caused a duplicate key value in a unique or
> primary key constraint or unique index identified by 'UNPREFERENCE1' defined
> on 'PREFERENCE'. {prepstmnt 1145321369 INSERT INTO JAVA.Preference (ID,
> JPA_VERSION, WIDGET_INSTANCE_ID, DKEY, DVALUE, READONLY) VALUES (?, ?, ?, ?,
> ?, ?) [params=(int) 782, (int) 1, (int) 720, (String) currentPage, (Reader)
> java.io.stringrea...@6c07125, (String) ]} [code=20000, state=23505]
> [java] FailedObject:
> org.apache.wookie.beans.jpa.impl.preferencei...@27da9eda
> [java] at
> org.apache.openjpa.jdbc.sql.DBDictionary.narrow(DBDictionary.java:4812)
> [java] at
> org.apache.openjpa.jdbc.sql.DBDictionary.newStoreException(DBDictionary.java:4787)
> [java] at
> org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:136)
> [java] at
> org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:78)
> [java] at
> org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushAndUpdate(PreparedStatementManagerImpl.java:143)
> [java] at
> org.apache.openjpa.jdbc.kernel.BatchingPreparedStatementManagerImpl.flushAndUpdate(BatchingPreparedStatementManagerImpl.java:81)
> [java] at
> org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushInternal(PreparedStatementManagerImpl.java:99)
> [java] at
> org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flush(PreparedStatementManagerImpl.java:87)
> [java] at
> org.apache.openjpa.jdbc.kernel.ConstraintUpdateManager.flush(ConstraintUpdateManager.java:550)
> [java] at
> org.apache.openjpa.jdbc.kernel.ConstraintUpdateManager.flush(ConstraintUpdateManager.java:106)
> [java] at
> org.apache.openjpa.jdbc.kernel.BatchingConstraintUpdateManager.flush(BatchingConstraintUpdateManager.java:59)
> [java] at
> org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:103)
> [java] at
> org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:76)
> [java] at
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager.flush(JDBCStoreManager.java:751)
> [java] at
> org.apache.openjpa.kernel.DelegatingStoreManager.flush(DelegatingStoreManager.java:131)
> [java] at
> org.apache.openjpa.datacache.DataCacheStoreManager.flush(DataCacheStoreManager.java:540)
> [java] at
> org.apache.openjpa.kernel.DelegatingStoreManager.flush(DelegatingStoreManager.java:131)
> [java] ... 24 more
> [java] Caused by: org.apache.openjpa.lib.jdbc.ReportingSQLException: The
> statement was aborted because it would have caused a duplicate key value in a
> unique or primary key constraint or unique index identified by
> 'UNPREFERENCE1' defined on 'PREFERENCE'. {prepstmnt 1145321369 INSERT INTO
> JAVA.Preference (ID, JPA_VERSION, WIDGET_INSTANCE_ID, DKEY, DVALUE, READONLY)
> VALUES (?, ?, ?, ?, ?, ?) [params=(int) 782, (int) 1, (int) 720, (String)
> currentPage, (Reader) java.io.stringrea...@6c07125, (String) ]} [code=20000,
> state=23505]
> [java] at
> org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator.wrap(LoggingConnectionDecorator.java:257)
> [java] at
> org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator.wrap(LoggingConnectionDecorator.java:233)
> [java] at
> org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator.access$1000(LoggingConnectionDecorator.java:70)
> [java] at
> org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator$LoggingConnection$LoggingPreparedStatement.executeUpdate(LoggingConnectionDecorator.java:1079)
> [java] at
> org.apache.openjpa.lib.jdbc.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:285)
> [java] at
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager$CancelPreparedStatement.executeUpdate(JDBCStoreManager.java:1722)
> [java] at
> org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.executeUpdate(PreparedStatementManagerImpl.java:267)
> [java] at
> org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushAndUpdate(PreparedStatementManagerImpl.java:118)
> [java] ... 36 more
> [java] 12:01:32,738 ERROR log:? -
> /wookie/dwr/call/plaincall/WidgetImpl.setPreferenceForKey.dwr
> [java] java.lang.RuntimeException
> [java] at
> org.apache.wookie.server.MainFilter.doFilter(MainFilter.java:50)
> [java] at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1089)
> [java] at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)
> [java] at
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> [java] at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
> [java] at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
> [java] at
> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
> [java] at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
> [java] at org.mortbay.jetty.Server.handle(Server.java:285)
> [java] at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:502)
> [java] at
> org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:835)
> [java] at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:641)
> [java] at
> org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:202)
> [java] at
> org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:378)
> [java] at
> org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:226)
> [java] at
> org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)
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