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http://opensource.atlassian.com/projects/hibernate/browse/HHH-2412?page=c...
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Ben Groeneveld commented on HHH-2412:
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We've not had much luck running Hibernate (generally 3.2.4.sp1.cp06) under JDK 1.6.
The problems can be difficult to detect, so an initial switch might appear to work. We
can recreate a number of errors, but pinpointing the exact issue has been difficult - but
a switch back to JDK 1.5 always resolves anomalies. We would see this error on one of our
systems - after the exception occurred the session factory goes bad and only a restart
allows continuation.
(1) SQL resulted in illegal operation, mismatched types, or incorrect cardinality.
[SQL0302] Conversion error on host variable or parameter *N.
On another application when we try to insert a record we get:
(2) [SQL0311] Length in a varying-length or LOB host variable not valid.
We're not using LOBs. With JDK 1.5 planned to sunset in October of 2009 we see an
urgent need for a 1.6 upgrade.
Hibernate 3 cannot be compiled under JDK 6
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Key: HHH-2412
URL:
http://opensource.atlassian.com/projects/hibernate/browse/HHH-2412
Project: Hibernate Core
Issue Type: Task
Components: core
Affects Versions: 3.2.1, 3.2.2
Environment: windows xp, JDK 6
Reporter: Ahmet A. Akin
Hibernate code cannot be compiled under JDK 6. Problems and possible solutions:
1- org.hibernate.jdbc.ResultSetWrapper implements ResultSet. But in Java 6, there are big
changes in Resultset interface, and maybe 20+ more methods needs to be implemented in the
ResultSetWrapper class. i would suggest eliminating this wrapper class once and for all,
because it is only used in one method (in ColumnNameCache, getIndexForColumnName method)
and i dont think there is a justification for using that wrapper class.
2- org.hibernate.lob.SerializableBlob needs to implement new Blob interface methods:
public void free() throws SQLException;
public InputStream getBinaryStream(long pos, long length) throws SQLException
But, if this class is publicly accesible or used by API's back compatibility issues
needs to be checked.
3- Same as number 2, org.hibernate.lob.BlobImpl class needs to implement new Blob
methods.
4- org.hibernate.lob.SerializableClob class needs to implent new Clob methods.
5- org.hibernate.lob.ClobImpl , same as 4.
In fact, Java 6 has a lot of JDBC improvements, maybe a java6 special extra package can
be created., but that is a whole different issue.
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