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From "Mamta A. Satoor (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-1599) Clob.getSubString() throws NullPointerException when created by updatable result set
Date Tue, 30 Oct 2007 05:56:50 GMT

    [ https://issues.apache.org/jira/browse/DERBY-1599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12538671
] 

Mamta A. Satoor commented on DERBY-1599:
----------------------------------------

I tried the attached repro in trunk in *embedded mode* and got error there too but not a null
pointer exception

$ java org.apache.derbyTesting.functionTests.tests.lang.DERBY_1599_Repro
Exception in thread "main" java.sql.SQLException: Java exception: 'ASSERT FAILED: org.apache.derby.shared.common.sanity.AssertFailure'.
        at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:45)
        at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:88)
        at org.apache.derby.impl.jdbc.Util.javaException(Util.java:245)
        at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:403)
        at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(TransactionResourceImpl.java:346)
        at org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConnection.java:1574)
        at org.apache.derby.impl.jdbc.ConnectionChild.handleException(ConnectionChild.java:81)
        at org.apache.derby.impl.jdbc.EmbedResultSet.getClob(EmbedResultSet.java:4048)
        at org.apache.derbyTesting.functionTests.tests.lang.DERBY_1599_Repro.main(DERBY_1599_Repro.java:57)
Caused by: org.apache.derby.shared.common.sanity.AssertFailure: ASSERT FAILED
        at org.apache.derby.shared.common.sanity.SanityManager.ASSERT(SanityManager.java:98)
        at org.apache.derby.impl.jdbc.EmbedClob.<init>(EmbedClob.java:144)
        at org.apache.derby.impl.jdbc.EmbedResultSet.getClob(EmbedResultSet.java:4046)
        ... 1 more

> Clob.getSubString() throws NullPointerException when created by updatable result set
> ------------------------------------------------------------------------------------
>
>                 Key: DERBY-1599
>                 URL: https://issues.apache.org/jira/browse/DERBY-1599
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC, Network Client
>    Affects Versions: 10.1.3.1, 10.2.1.6
>            Reporter: Knut Anders Hatlen
>            Priority: Minor
>         Attachments: Repro.java
>
>
> If you create a clob value with one of the ResultSet.updateXXX methods that take a stream
or a reader, and retrieve that value with ResultSet.getClob(), a NullPointerException will
be thrown when getSubString() is called on the returned Clob object. This happens with the
network client driver, and it has been observed on Derby 10.1.3.1 and trunk.
> Exception in thread "main" java.lang.NullPointerException
>         at org.apache.derby.client.am.Clob.getSubStringX(Clob.java:229)
>         at org.apache.derby.client.am.Clob.getSubString(Clob.java:210)
>         at Repro.main(Repro.java:24)

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