[Hibernate-issues] [Hibernate-JIRA] Updated: (HHH-1804) Empty 'FetchingScrollableResultsImpl' throws SQLException

[Maarten W. (JIRA) <no...@at...>]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1804?page=all ]

Maarten Winkels updated HHH-1804:
---------------------------------

    Attachment: EmptyFetchJoinScrollTest.java

Testcase that shows the exception.

> Empty 'FetchingScrollableResultsImpl' throws SQLException
> ---------------------------------------------------------
>
>          Key: HHH-1804
>          URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1804
>      Project: Hibernate3
>         Type: Bug

>     Reporter: Maarten Winkels
>  Attachments: EmptyFetchJoinScrollTest.java
>
>
> When scrolling a HQL query with join fetch on a collection, that doesn't return any results, the following execption occurs:
> org.hibernate.exception.GenericJDBCException: could not perform sequential read of results (forward)
> 	at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103)
> 	at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91)
> 	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
> 	at org.hibernate.loader.Loader.loadSequentialRowsForward(Loader.java:386)
> 	at org.hibernate.impl.FetchingScrollableResultsImpl.next(FetchingScrollableResultsImpl.java:55)
> 	at org.hibernate.test.joinfetch.EmptyFetchJoinScrollTest.testFetchJoinEmptyScroll(EmptyFetchJoinScrollTest.java:21)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:585)
> 	at junit.framework.TestCase.runTest(TestCase.java:154)
> 	at org.hibernate.test.TestCase.runTest(TestCase.java:161)
> 	at junit.framework.TestCase.runBare(TestCase.java:127)
> 	at junit.framework.TestResult$1.protect(TestResult.java:106)
> 	at junit.framework.TestResult.runProtected(TestResult.java:124)
> 	at junit.framework.TestResult.run(TestResult.java:109)
> 	at junit.framework.TestCase.run(TestCase.java:118)
> 	at junit.framework.TestSuite.runTest(TestSuite.java:208)
> 	at junit.framework.TestSuite.run(TestSuite.java:203)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:478)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:344)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
> Caused by: java.sql.SQLException: No data is available
> 	at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
> 	at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
> 	at org.hsqldb.jdbc.jdbcResultSet.checkAvailable(Unknown Source)
> 	at org.hsqldb.jdbc.jdbcResultSet.getColumnInType(Unknown Source)
> 	at org.hsqldb.jdbc.jdbcResultSet.getString(Unknown Source)
> 	at org.hsqldb.jdbc.jdbcResultSet.getString(Unknown Source)
> 	at org.hibernate.type.StringType.get(StringType.java:18)
> 	at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:113)
> 	at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:102)
> 	at org.hibernate.loader.Loader.getKeyFromResultSet(Loader.java:1088)
> 	at org.hibernate.loader.Loader.loadSequentialRowsForward(Loader.java:375)
> 	... 18 more

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