NPE when shutting H2 down after integration tests run

[Sanjeev Gour]

We have been seeing this exception sometimes when the integration test run completes and an attempt is made to shutdown the H2. Has anyone seen this before and knows what could be going wrong?

org.h2.jdbc.JdbcSQLException: General error: "java.lang.NullPointerException"; SQL statement: SHUTDOWN [50000-162]
org.h2.jdbc.JdbcSQLException: General error: "java.lang.NullPointerException"; SQL statement:
SHUTDOWN [50000-162]
    at org.h2.message.DbException.getJdbcSQLException(DbException.java:329)
    at org.h2.message.DbException.get(DbException.java:158)
    at org.h2.message.DbException.convert(DbException.java:281)
    at org.h2.command.Command.executeUpdate(Command.java:230)
    at org.h2.jdbc.JdbcStatement.executeInternal(JdbcStatement.java:177)
    at org.h2.jdbc.JdbcStatement.execute(JdbcStatement.java:152)
    at com.ca.mfui.chorusR2.server.service.ServiceModuleForITTesting.shutdownDatabase(ServiceModuleForITTesting.java:231)
    at com.ca.mfui.chorusR2.server.service.IntegrationTstUI.shutdownDatabase(IntegrationTstUI.java:52)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:37)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:59)
    at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:120)
    at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:103)
    at org.apache.maven.surefire.Surefire.run(Surefire.java:169)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:350)
    at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1021)
Caused by: java.lang.NullPointerException
    at org.h2.table.RegularTable.removeRow(RegularTable.java:344)
    at org.h2.engine.UndoLogRecord.undo(UndoLogRecord.java:98)
    at org.h2.engine.Session.rollbackTo(Session.java:530)
    at org.h2.engine.Session.rollback(Session.java:507)
    at org.h2.command.dml.TransactionCommand.update(TransactionCommand.java:104)
    at org.h2.command.CommandContainer.update(CommandContainer.java:73)
    at org.h2.command.Command.executeUpdate(Command.java:226)
    ... 23 more