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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-4888) ClassCastException when calling boolean meta-data functions with 10.7 client against 10.6 server
Date Fri, 05 Nov 2010 21:14:46 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4888?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Knut Anders Hatlen updated DERBY-4888:
--------------------------------------

    Attachment: test.diff

Attaching a test case that exposes the bug. When running the compatibility test with 10.6.1.0
server and 10.7 client, I get this error:

There was 1 error:
1) testJDBCDriver(org.apache.derbyTesting.functionTests.tests.junitTests.compatibility.JDBCDriverTest)java.lang.ClassCastException:
java.lang.Integer cannot be cast to java.lang.Boolean
	at org.apache.derby.client.am.DatabaseMetaData.getMetaDataInfoBoolean(DatabaseMetaData.java:2401)
	at org.apache.derby.client.am.DatabaseMetaData.storesLowerCaseIdentifiers(DatabaseMetaData.java:191)
	at org.apache.derbyTesting.functionTests.tests.junitTests.compatibility.JDBCDriverTest.derby_4888_test(JDBCDriverTest.java:383)
	at org.apache.derbyTesting.functionTests.tests.junitTests.compatibility.JDBCDriverTest.testJDBCDriver(JDBCDriverTest.java:257)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at org.apache.derbyTesting.functionTests.tests.junitTests.compatibility.CompatibilitySuite.main(CompatibilitySuite.java:147)

The test case passes with the suggested fix.

> ClassCastException when calling boolean meta-data functions with 10.7 client against
10.6 server
> ------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4888
>                 URL: https://issues.apache.org/jira/browse/DERBY-4888
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC, Network Client
>    Affects Versions: 10.7.1.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Knut Anders Hatlen
>         Attachments: boolean.diff, test.diff
>
>
> I noticed that DESCRIBE didn't work when I tried to connect to a 10.6 server with ij/client
driver at version 10.7.
> ij> describe t;
> JAVA ERROR: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Boolean
> java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Boolean
> 	at org.apache.derby.client.am.DatabaseMetaData.getMetaDataInfoBoolean(DatabaseMetaData.java:2401)
> 	at org.apache.derby.client.am.DatabaseMetaData.storesLowerCaseIdentifiers(DatabaseMetaData.java:191)
> 	at org.apache.derby.impl.tools.ij.ij.caIdentifier(ij.java:3040)
> 	at org.apache.derby.impl.tools.ij.ij.DescTableStatement(ij.java:1624)
> 	at org.apache.derby.impl.tools.ij.ij.ijStatement(ij.java:1121)
> 	at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(utilMain.java:341)
> 	at org.apache.derby.impl.tools.ij.utilMain.go(utilMain.java:261)
> 	at org.apache.derby.impl.tools.ij.Main.go(Main.java:229)
> 	at org.apache.derby.impl.tools.ij.Main.mainCore(Main.java:184)
> 	at org.apache.derby.impl.tools.ij.Main.main(Main.java:75)
> 	at org.apache.derby.tools.ij.main(ij.java:59)
> 	at org.apache.derby.iapi.tools.run.main(run.java:53)

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