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https://issues.apache.org/jira/browse/DERBY-4142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12717864#action_12717864
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Myrna van Lunteren commented on DERBY-4142:
-------------------------------------------

Thanks for reviewing the patch Mamta!

I've been trying to test a patched build with ibm 1.5. on iseries, but have run 
into trouble:
- OOM with suites.All. I've been running with -Xmx1024M -Xms1024M before and 
that worked in the past...Not sure what's going on now. A second run (with 
2048M) only got worse (sooner) OOM behavior and after that I had trouble 
getting rid of my processes
- apparent hang with derbyall:lang/wisconsin.java. I have stupidly deleted the 
original test dir, but judging from the suite's output files, no output was 
created after 3 1/2 hours. On rerun I let it go for 20 mins, but apart from the 
database getting booted (derby.log) nothing at all showed up in any of the 
output files (i.e. .tmp was empty). During the 10.5.1.1 test cycle this test 
took about 5 mins (and passed).

So, the original problem appears addressed (as I said, the 3 failing tests now 
pass), but I will investigate these behaviors, and run on another type of 
machine just to be safe.

> java.lang.VerifyError causing java.sql.SQLException: Cannot create an 
> instance of generated class ... in lang.GeneratedColumnsTest and 
> GeneratedColumnsPermsTest  on IBM iseries
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4142
>                 URL: https://issues.apache.org/jira/browse/DERBY-4142
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.5.1.1
>         Environment: IBM iseries (AS 400) with ibm 1.5 (build 1.5.0_13-b05)
>            Reporter: Myrna van Lunteren
>            Assignee: Myrna van Lunteren
>         Attachments: create.sql, d4142generated.java, decompile.out, 
> DERBY-4142.diff, derby.properties, repro.sql, runjodedecompile.out, verify.out
>
>
> This results in 22 errors.
> Here's the stack trace with an insane build:
> 1) 
> test_005_basicInsert(org.apache.derbyTesting.functionTests.tests.lang.GeneratedColumnsTest)java.sql.SQLException:
>  Cannot create an instance of generated class 
> org.apache.derby.exe.acd83d18d1x0120x62bdx2dffxffffb19003081.
>       at java.lang.Throwable.<init>(Throwable.java:196)
>       at java.lang.Exception.<init>(Exception.java:41)
>       at java.sql.SQLException.<init>(SQLException.java:40)
>       at org.apache.derby.impl.jdbc.EmbedSQLException.<init>(Unknown Source)
>       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.seeNextException(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.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.jdbc.Driver30.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.derbyTesting.functionTests.tests.lang.GeneratedColumnsHelper.chattyPrepare(GeneratedColumnsHelper.java:147)
>       at 
> org.apache.derbyTesting.functionTests.tests.lang.GeneratedColumnsHelper.goodStatement(GeneratedColumnsHelper.java:125)
>       at 
> org.apache.derbyTesting.functionTests.tests.lang.GeneratedColumnsTest.test_005_basicInsert(GeneratedColumnsTest.java:427)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>       at 
> org.apache.derbyTesting.junit.BaseTestCase.runBare(BaseTestCase.java:105)
>       at junit.extensions.TestDecorator.basicRun(TestDecorator.java:22)
>       at junit.extensions.TestSetup$1.protect(TestSetup.java:19)
>       at junit.extensions.TestSetup.run(TestSetup.java:23)
>       at 
> org.apache.derbyTesting.junit.BaseTestSetup.run(BaseTestSetup.java:57)
>       at junit.extensions.TestDecorator.basicRun(TestDecorator.java:22)
>       at junit.extensions.TestSetup$1.protect(TestSetup.java:19)
>       at junit.extensions.TestSetup.run(TestSetup.java:23)
> Caused by: java.sql.SQLException: Java exception: 
> 'org/apache/derby/exe/acd83d18d1x0120x62bdx2dffxffffb19003081 0000 0000 : 
> java.lang.VerifyError'.
>       at java.lang.Throwable.<init>(Throwable.java:196)
>       at java.lang.Exception.<init>(Exception.java:41)
>       at java.sql.SQLException.<init>(SQLException.java:40)
>       at org.apache.derby.impl.jdbc.EmbedSQLException.<init>(Unknown Source)
>       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)
>       ... 43 more
> Caused by: java.lang.VerifyError: 
> org/apache/derby/exe/acd83d18d1x0120x62bdx2dffxffffb19003081 0000 0000 
>       at java.lang.Throwable.<init>(Throwable.java:196)
>       at java.lang.Error.<init>(Error.java:49)
>       at java.lang.VerifyError.<init>(VerifyError.java:34)
>       at 
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
>       at 
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
>       at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
>       at 
> org.apache.derby.iapi.services.loader.ClassInfo.getNewInstance(Unknown Source)
>       at 
> org.apache.derby.impl.services.reflect.LoadedGeneratedClass.newInstance(Unknown
>  Source)
>       at 
> org.apache.derby.impl.services.reflect.ReflectGeneratedClass.newInstance(Unknown
>  Source)
>       at org.apache.derby.impl.sql.GenericActivationHolder.<init>(Unknown 
> Source)
>       at 
> org.apache.derby.impl.sql.GenericPreparedStatement.getActivation(Unknown 
> Source)
>       ... 39 more

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