NPE in JBitSet
--------------
Key: DERBY-4549
URL: https://issues.apache.org/jira/browse/DERBY-4549
Project: Derby
Issue Type: Bug
Components: SQL
Affects Versions: 10.5.3.0
Reporter: Murat Knecht
A NPE occurs at org.apache.derby.iapi.util.JBitSet.or().
A NPE occured at the same location before:
http://issues.apache.org/jira/browse/DERBY-1574
The bug was confirmed by Bryan Pendleton to show in the HEAD as well:
http://mail-archives.apache.org/mod_mbox/db-derby-user/201002.mbox/%[email protected]%3e
To reproduce:
----------------------
CREATE TABLE ABC (ID int PRIMARY KEY NOT NULL);
CREATE TABLE DEF (ID int PRIMARY KEY NOT NULL);
SELECT *
FROM ABC t1
WHERE (SELECT DISTINCT t2.ID FROM DEF t2)
IN (SELECT t3.ID FROM DEF t3)
----------------------
Leads to
error message:
Error: DERBY SQL error: SQLCODE: -1, SQLSTATE: XJ001, SQLERRMC:
java.lang.NullPointerExceptionXJ001.U
SQLState: XJ001
ErrorCode: -1
Stacktrace:
java.lang.NullPointerException
at org.apache.derby.iapi.util.JBitSet.or(Unknown Source)
at org.apache.derby.impl.sql.compile.OptimizerImpl.<init>(Unknown
Source)
at org.apache.derby.impl.sql.compile.Level2OptimizerImpl.<init>(Unknown
Source)
at
org.apache.derby.impl.sql.compile.Level2OptimizerFactoryImpl.getOptimizerImpl(Unknown
Source)
at
org.apache.derby.impl.sql.compile.OptimizerFactoryImpl.getOptimizer(Unknown
Source)
at org.apache.derby.impl.sql.compile.ResultSetNode.getOptimizer(Unknown
Source)
at org.apache.derby.impl.sql.compile.SelectNode.optimize(Unknown Source)
at org.apache.derby.impl.sql.compile.SubqueryNode.optimize(Unknown
Source)
at org.apache.derby.impl.sql.compile.SubqueryList.optimize(Unknown
Source)
at org.apache.derby.impl.sql.compile.SelectNode.optimize(Unknown Source)
at
org.apache.derby.impl.sql.compile.DMLStatementNode.optimizeStatement(Unknown
Source)
at
org.apache.derby.impl.sql.compile.CursorNode.optimizeStatement(Unknown Source)
at org.apache.derby.impl.sql.GenericStatement.prepMinion(Unknown Source)
at org.apache.derby.impl.sql.GenericStatement.prepare(Unknown Source)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(Unknown
Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement.<init>(Unknown
Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement20.<init>(Unknown
Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement30.<init>(Unknown
Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement40.<init>(Unknown
Source)
at org.apache.derby.jdbc.Driver40.newEmbedPreparedStatement(Unknown
Source)
at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown
Source)
at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown
Source)
at org.apache.derby.impl.drda.DRDAStatement.prepare(Unknown Source)
at org.apache.derby.impl.drda.DRDAStatement.explicitPrepare(Unknown
Source)
at org.apache.derby.impl.drda.DRDAConnThread.parsePRPSQLSTT(Unknown
Source)
at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown
Source)
at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
Cleanup action completed
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