Debugging a BLOB issue on H2 (different issue than this) led me to try Derby,
which fails even earlier.
This is the same test as org.hibernate.ejb.test.lob.BlobTest, if someone could
run this on Derby, you should see the exception. I've copied the test 1:1 into
my environment and had the same exception.
The sql.BlobTypeDescriptor.STREAM_BINDING option is used by default for an @Lob
java.sql.Blob property. This option "unwraps" the value by calling
java.BlobTypeDescriptor.unwrap():
return (X) new BinaryStreamImpl( DataHelper.extractBytes(
value.getBinaryStream() ) );
This crashes on the call to value.getBinaryStream():
Caused by: java.sql.SQLException: You cannot invoke other
java.sql.Clob/java.sql.Blob methods after calling the free() method or after
the Blob/Clob's transaction has been committed or rolled back.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown
Source)
at org.apache.derby.impl.jdbc.EmbedConnection.newSQLException(Unknown
Source)
at org.apache.derby.impl.jdbc.ConnectionChild.newSQLException(Unknown
Source)
at org.apache.derby.impl.jdbc.EmbedBlob.checkValidity(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedBlob.getBinaryStream(Unknown Source)
at
org.hibernate.type.descriptor.java.BlobTypeDescriptor.unwrap(BlobTypeDescriptor.java:123)
Bug report?
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