January 2010 - hibernate-issues - Jboss List Archives

[Hibernate-JIRA] Created: (HHH-4441) SessionImpl serialization violates java serialization spec

by Paul Ferraro (JIRA)

SessionImpl serialization violates java serialization spec ---------------------------------------------------------- Key: HHH-4441 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4441 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.5.0.Beta-1, 3.3.2 Reporter: Paul Ferraro Attachments: patch.txt The private serialization methods of org.hibernate.impl.SessionImpl must call default[Read|Write]Object() on the object input/output stream before any custom de/serialization logic. According to the Java serialization spec: http://java.sun.com/javase/6/docs/platform/serialization/spec/output.html... "The class's writeObject method, if implemented, is responsible for saving the state of the class. Either ObjectOutputStream's defaultWriteObject or writeFields method must be called once (and only once) before writing any optional data that will be needed by the corresponding readObject method to restore the state of the object; even if no optional data is written, defaultWriteObject or writeFields must still be invoked once. If defaultWriteObject or writeFields is not invoked once prior to the writing of optional data (if any), then the behavior of instance deserialization is undefined in cases where the ObjectInputStream cannot resolve the class which defined the writeObject method in question." http://java.sun.com/javase/6/docs/platform/serialization/spec/input.html#... "The readObject method of the class, if implemented, is responsible for restoring the state of the class. The values of every field of the object whether transient or not, static or not are set to the default value for the fields type. Either ObjectInputStream's defaultReadObject or readFields method must be called once (and only once) before reading any optional data written by the corresponding writeObject method; even if no optional data is read, defaultReadObject or readFields must still be invoked once." One consequence of this spec violation is that you cannot use JBoss Marshalling to serialize a session. For details, see: https://jira.jboss.org/jira/browse/JBMAR-67 Patch attached. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Created: (HHH-4443) Allow generic handling of any Hibernate type for post-insert generated identifiers

by Steve Ebersole (JIRA)

Allow generic handling of any Hibernate type for post-insert generated identifiers ---------------------------------------------------------------------------------- Key: HHH-4443 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4443 Project: Hibernate Core Issue Type: Improvement Components: core Reporter: Steve Ebersole Assignee: Steve Ebersole Fix For: 3.5 See HB-92 for the original request. Much of the discussion unfortunately occurred in a private email thread with the original requester, but here is the proposed solution: Steve Ebersole <steve(a)hibernate.org> wrote: The "more correct" solution is along the lines a contract to allow the type to handle this like you said. I'm thinking something like an optional interface for the type to publish that fact: public interface ResultSetIdentifierConsumer { public Serializable consumeIdentifier(ResultSet resultSet); } then IdentifierGeneratorFactory (called IdentifierGeneratorHelper now btw) can say: public static Serializable get(ResultSet rs, Type type) ... { if ( type instanceof ResultSetIdentifierConsumer ) { return ( ( ResultSetIdentifierConsumer ) type ).consumeIdentifier( rs ); } Class clazz = type.getReturnedClass(); if ( clazz == Long.class ) { return new Long( rs.getLong( 1 ) ); } else if ( clazz == Integer.class ) { return new Integer( rs.getInt( 1 ) ); } else if ( clazz == Short.class ) { return new Short( rs.getShort( 1 ) ); } else if ( clazz == String.class ) { return rs.getString( 1 ); } else { throw ... } } and you can define a type : public class MyCustomLongIdType ... implements ResultSetIdentifierConsumer ... { public Serializable consumeIdentifier(ResultSet resultSet) { return new MyCustomLongId( resultSet.getLong( 1 ) ); } ... } -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 8 months

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[Hibernate-JIRA] Created: (HHH-3006) ConcurrentModificationException in AbstractBatcher results in infinite loop

by Stefan Hauk (JIRA)

ConcurrentModificationException in AbstractBatcher results in infinite loop --------------------------------------------------------------------------- Key: HHH-3006 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3006 Project: Hibernate3 Issue Type: Bug Components: core Affects Versions: 3.2.5, 3.2.4.sp1, 3.2.4, 3.2.3 Environment: Hibernate 3.2.5.ga MySQL 5.0.42 Reporter: Stefan Hauk Priority: Minor Here is a piece of code from org.hibernate.jdbc.AbstractBatcher's closeStatements() method: Iterator iter = resultSetsToClose.iterator(); while ( iter.hasNext() ) { try { logCloseResults(); ( (ResultSet) iter.next() ).close(); } catch (SQLException e) { // no big deal log.warn("Could not close a JDBC result set", e); } catch (Throwable e) { // sybase driver (jConnect) throwing NPE here in certain cases log.warn("Could not close a JDBC result set", e); } } resultSetsToClose.clear(); In case there is a ConcurrentModificationException thrown when iterating over the resultSetsToClose HashSet the exception will be caught by the catch(Throwable) clause. However, the iteration may continue infinitely because of the corrupted HashSet. This pegs one CPU and logs the following stack trace over and over again: 28/11 20:16:50 WARN AbstractBatcher [resin-tcp-connection-myserver:6001-15] Could not close a JDBC result set java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(HashMap.java:841) at java.util.HashMap$KeyIterator.next(HashMap.java:877) at org.hibernate.jdbc.AbstractBatcher.closeStatements(AbstractBatcher.java:314) at org.hibernate.jdbc.ConnectionManager.cleanup(ConnectionManager.java:382) at org.hibernate.jdbc.ConnectionManager.close(ConnectionManager.java:324) at org.hibernate.impl.SessionImpl.close(SessionImpl.java:298) at org.springframework.orm.hibernate3.SessionFactoryUtils.closeSession(SessionFactoryUtils.java:774) at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.closeSession(OpenSessionInViewFilter.java:252) at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:183) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70) at com.caucho.server.cache.CacheFilterChain.doFilter(CacheFilterChain.java:188) at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:178) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.hmux.HmuxRequest.handleRequest(HmuxRequest.java:419) at com.caucho.server.port.TcpConnection.run(TcpConnection.java:389) at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:492) at com.caucho.util.ThreadPool.run(ThreadPool.java:425) at java.lang.Thread.run(Thread.java:595) The catch(Throwable) block was added in Hibernate 3.2.3 if I saw that correctly. Apparently the reason was to catch a NPE thrown by a sybase driver here, but catching Throwable catches more than that and produces this side-effect. Now I do realize that the ConcurrentModificationException might be caused by not using Hibernate in a correct way, but I haven't determined the cause for it yet. However, I do think that Hibernate should fail more gracefully than it currently does. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 8 months

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[Hibernate-JIRA] Created: (HHH-2708) attribute order-by don't devlared on hibernate-mapping-3.0.dtd

by Sunteya (JIRA)

attribute order-by don't devlared on hibernate-mapping-3.0.dtd -------------------------------------------------------------- Key: HHH-2708 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2708 Project: Hibernate3 Issue Type: Bug Affects Versions: 3.2.4.sp1 Reporter: Sunteya HHH-1414 bug already fixed order-by attribute on the <many-to-many/> element but the dtd file don't allow use order-by attribute. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 8 months

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[Hibernate-JIRA] Created: (ANN-719) Upload Hibernate-Annotations 3.3.1.GA to central maven repository

by Andreas Schildbach (JIRA)

Upload Hibernate-Annotations 3.3.1.GA to central maven repository ----------------------------------------------------------------- Key: ANN-719 URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-719 Project: Hibernate Annotations Issue Type: Improvement Affects Versions: 3.3.1.GA Reporter: Andreas Schildbach Could you upload Hibernate-Annotations 3.3.1.GA to the central maven repository? Would you also add the sources? -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 8 months

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[Hibernate-JIRA] Created: (HHH-2980) Error "org.hibernate.HibernateException: cannot simultaneously fetch multiple bags" not specific enough

by Dobes Vandermeer (JIRA)

Error "org.hibernate.HibernateException: cannot simultaneously fetch multiple bags" not specific enough ------------------------------------------------------------------------------------------------------- Key: HHH-2980 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2980 Project: Hibernate3 Issue Type: Improvement Affects Versions: 3.2.5 Reporter: Dobes Vandermeer When I get this exception: org.hibernate.HibernateException: cannot simultaneously fetch multiple bags I don't know what to do except google. Why not spruce it up a little to say something like: For class X, multiple collection fields are marked for eager fetching: a, b, c; this is not supported by Hibernate in releases after 3.2.x -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 8 months

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[Hibernate-JIRA] Created: (HHH-3191) QueryPlanCache cache size

by Julien Kirch (JIRA)

QueryPlanCache cache size ------------------------- Key: HHH-3191 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3191 Project: Hibernate3 Issue Type: Improvement Components: query-hql Affects Versions: 3.2.6 Environment: Hibernate 3.2.6, all platform Reporter: Julien Kirch On a large application with many (currently 696) named queries in hbm files we have a performance issue with the QueryPlanCache cache size: The SoftLimitMRUCache used in the QueryPlanCache use 128 hard references, the other being soft references, and this number is hardcoded. As we have much more querries in the application, we spend much time in recompiling the same queries when they are evicted from the cache. As the QueryPlanCache has a SessionFactoryImplementor as parameter, adding a new parameter to define the query cache plan size would be trivial; what's your opinion about this ? -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 8 months

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[Hibernate-JIRA] Created: (HHH-4627) Configurable Query Plan Cache

by Frank Daspro (JIRA)

Configurable Query Plan Cache ----------------------------- Key: HHH-4627 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4627 Project: Hibernate Core Issue Type: New Feature Components: query-hql Affects Versions: 3.2.2 Environment: Hibernate 3.22 GA, Oracle 10G database Reporter: Frank Daspro Our application heavily uses dynamic sql some of which are highly parameterised and with many permutations. Out of neccessity we also have a very large JVM heap space (12GB). As a result we end up with a very large memory utilisation for the Query Plan cache. From a recent memory dump it was noted the QueryPlanCache had 25000 entries and consuming 2.5GB of heap space. Our full Garbage collections end up taking longer than it would normally take with a smaller QueryPlanCache. I understand via a related issue (http://opensource.atlassian.com/projects/hibernate/browse/HHH-3191) there is a hard limit of 128 entries, and an endless soft limit which is only garbage collected during a full garbage collection. It would be nice if the following features could be added: 1) Configuration options to specify the hard and soft limits (with a 0 to disable or similar). 2) Configurable at the query level such that specific queries can be excluded from the the QueryPlanCache. eg. something like hibernateQuery.setParsedHQLCacheable(false). -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 8 months

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[Hibernate-JIRA] Created: (HHH-2431) QueryPlanCache grows without bound. Eventually gets OutOfMemoryException

by Eric Goff (JIRA)

QueryPlanCache grows without bound. Eventually gets OutOfMemoryException -------------------------------------------------------------------------- Key: HHH-2431 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2431 Project: Hibernate3 Type: Bug Components: core Versions: 3.2.2 Environment: all versions, all platforms Reporter: Eric Goff Every time you execute a query, and that query does not match any existing queries in the QueryPlanCache, that query is *always* added to the Query Plan Cache, along with a lot of various antlr stuff. There seems to be no way to control it. Minimally, there should be some sort of heap of query plans where the least used query plan is ejected when the cache reaches it max size. The cache size should, of course, be user configurable. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 8 months

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[Hibernate-JIRA] Created: (HBX-1000) Problem with PostgreSQL using uppercase letters in tables

by Ruediger Engelberger (JIRA)

Problem with PostgreSQL using uppercase letters in tables --------------------------------------------------------- Key: HBX-1000 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-1000 Project: Hibernate Tools Issue Type: Bug Components: reverse-engineer Affects Versions: 3.2.beta11 Environment: Hibernate 3.2.5.ga, Hibernate Tools 3.2.0 beta9a, PostgreSql 8.2, postgresql-8.2-506.jdbc3.jar, Eclipse 3.3.0, all running on Windows XP at the moment (including PostgreSql) Reporter: Ruediger Engelberger I have problems using Hibernate tools when using upper case letters in a PostgreSQL database. I can configure Hibernate Tools for my local PostgreSql installation without any problems. I can access the table structure in the view Hibernate Configurations and do reverse engineering by creating XML mappings and beans. No problem. But when I'm using upper case characters in table names Hibernate Tools can't access the table structures any more. Hibernate Configuration shows the tables, but when I want to see the columns, it doesn't show anything. Reverse engineering also doesn't work any more. So, the following works: TABLE cms_clusterMessage pk_clustermessageid fk_clusternodeid messagetype messagedetail The following doesn't work: TABLE cms_clusterMessage PK_ClusterMessageId FK_ClusterNodeId MessageType MessageDetail I tried to use different JDBC drivers because I thought it could be a bug of the driver. But it wasn't. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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hibernate-issues January 2010