Richard Zowalla created OPENJPA-3061:
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Summary: MariaDB: writing a Reader into a CLOB fails with
ArrayIndexOutOfBoundsException
Key: OPENJPA-3061
URL: https://issues.apache.org/jira/browse/OPENJPA-3061
Project: OpenJPA
Issue Type: Bug
Components: jdbc
Reporter: Richard Zowalla
Assignee: Richard Zowalla
Fix For: 4.2.0
Writing a {{Reader}} into a CLOB field fails on MariaDB:
{noformat}
java.lang.ArrayIndexOutOfBoundsException: arraycopy: last destination index
8193 out of bounds for byte[8192]
at
org.mariadb.jdbc.MariaDbBlob$BlobOutputStream.write(MariaDbBlob.java:448)
at java.io.OutputStreamWriter.write(OutputStreamWriter.java:206)
at org.apache.openjpa.jdbc.sql.DBDictionary.copy(DBDictionary.java:5947)
at
org.apache.openjpa.jdbc.sql.DBDictionary.updateClob(DBDictionary.java:5911)
at
org.apache.openjpa.jdbc.meta.strats.LobFieldStrategy.customInsert(LobFieldStrategy.java:128)
{noformat}
{{DBDictionary.updateClob}} selects the row with an updatable result set, gets
the {{Clob}} and writes through {{Clob.setCharacterStream(1)}}. The writer
returned by MariaDB Connector/J 3.5.11 overruns its own buffer once more than 8
KB is written. Writing an {{InputStream}} into a BLOB works.
The LOB tests ({{AbstractLobTest}}, {{TestReaderLob}}, {{TestInputStreamLob}})
only run on MySQL and DB2, so this was not noticed. {{TestReaderLob}} fails on
MariaDB 12.3 with 12 errors when MariaDB is added to the supported databases.
Found while working on OPENJPA-3060.
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