[DERBY-4721] NullPointerException on StressMultiTest in language layer

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Cannot Reproduce
• Affects Version/s: 10.7.1.1
• Component/s: Test
• Bug behavior facts: Regression, Regression Test Failure
• Assignee: Unassigned
• Reporter: Mamta A. Satoor
• Created: 28/Jun/10 20:53
• Updated: 17/Jun/13 09:19
• Resolved: 05/Aug/10 22:13

Description

Saw NPE for testStressMulti on trunk(10.7 revision 956758) on a windows machine with ibm15. May be related to commit made for DERBY-4279, since it seems to have caused some other NPEs in StressMultiTest in the Tinderbox too.

The stack trace looks as follows
1) testStressMulti(org.apache.derbyTesting.functionTests.tests.multi.StressMultiTest)junit.framework.AssertionFailedError: Caused by:
java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.Util.javaException(Unknown Source)
at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedStatement.executeQuery(Unknown Source)
at org.apache.derbyTesting.functionTests.tests.multi.StressMultiTest$StressMultiRunnable.select(StressMultiTest.java:555)
at org.apache.derbyTesting.functionTests.tests.multi.StressMultiTest$StressMultiRunnable.run(StressMultiTest.java:429)
at java.lang.Thread.run(Thread.java:811)
Caused by: java.lang.NullPointerException
at org.apache.derby.impl.sql.GenericActivationHolder.<init>(Unknown Source)
at org.apache.derby.impl.sql.GenericPreparedStatement.getActivation(Unknown Source)
... 5 more

at org.apache.derbyTesting.functionTests.tests.multi.StressMultiTest.handleException(StressMultiTest.java:351)
at org.apache.derbyTesting.functionTests.tests.multi.StressMultiTest.access$200(StressMultiTest.java:70)
at org.apache.derbyTesting.functionTests.tests.multi.StressMultiTest$StressMultiRunnable.run(StressMultiTest.java:445)
at java.lang.Thread.run(Thread.java:811)
[ Show » ] Mamta A. Satoor added a comment - 22/Jun/10 07:24 PM Saw NPE for testStressMulti on trunk(10.7 revision 956758) on a windows machine with ibm15. The stack trace looks as follows 1) testStressMulti(org.apache.derbyTesting.functionTests.tests.multi.StressMultiTest)junit.framework.AssertionFailedError: Caused by: java.sql.SQLException: Java exception: ': java.lang.NullPointerException'. at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source) at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source) at org.apache.derby.impl.jdbc.Util.javaException(Unknown Source) at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source) at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source) at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source) at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source) at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source) at org.apache.derby.impl.jdbc.EmbedStatement.executeQuery(Unknown Source) at org.apache.derbyTesting.functionTests.tests.multi.StressMultiTest$StressMultiRunnable.select(StressMultiTest.java:555) at org.apache.derbyTesting.functionTests.tests.multi.StressMultiTest$StressMultiRunnable.run(StressMultiTest.java:429) at java.lang.Thread.run(Thread.java:811) Caused by: java.lang.NullPointerException at org.apache.derby.impl.sql.GenericActivationHolder.<init>(Unknown Source) at org.apache.derby.impl.sql.GenericPreparedStatement.getActivation(Unknown Source) ... 5 more at org.apache.derbyTesting.functionTests.tests.multi.StressMultiTest.handleException(StressMultiTest.java:351) at org.apache.derbyTesting.functionTests.tests.multi.StressMultiTest.access$200(StressMultiTest.java:70) at org.apache.derbyTesting.functionTests.tests.multi.StressMultiTest$StressMultiRunnable.run(StressMultiTest.java:445) at java.lang.Thread.run(Thread.java:811)

Issue Links

• is part of: DERBY-4279 Statement cache deadlock