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https://issues.apache.org/jira/browse/DERBY-2498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12484928
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Myrna van Lunteren commented on DERBY-2498:
-------------------------------------------
ClientConnectionPoolDataSource also gives a NPE if the database set is
incorrect. I'll add a test to the converted checkDataSource.java
(DataSourceTest.java).
> NullPointerException on ClientDataSource.getConnection() when
> ds.setdatabaseName was invalid
> ---------------------------------------------------------------------------------------------
>
> Key: DERBY-2498
> URL: https://issues.apache.org/jira/browse/DERBY-2498
> Project: Derby
> Issue Type: Bug
> Components: Network Client
> Affects Versions: 10.3.0.0
> Reporter: Myrna van Lunteren
>
> The following code snippet:
> ClientDataSource ds =
> (ClientDataSource)JDBCDataSource.getDataSource();
> // invalid database string
> ds.setDatabaseName("jdbc:derby:wombat");
> ds.getConnection();
> results (with jdk14) in this stack trace:
> java.lang.NullPointerException
> at org.apache.derby.client.am.ProductLevel.<init>(ProductLevel.java:41)
> at
> org.apache.derby.client.net.NetDatabaseMetaData.<init>(NetDatabaseMetaData.java:40)
> at
> org.apache.derby.client.net.ClientJDBCObjectFactoryImpl.newNetDatabaseMetaData(ClientJDBCObjectFactoryImpl.java:276)
> at
> org.apache.derby.client.net.NetConnection.newDatabaseMetaData_(NetConnection.java:1144)
> at
> org.apache.derby.client.am.Connection.completeConnect(Connection.java:1803)
> at
> org.apache.derby.client.net.NetConnection.completeConnect(NetConnection.java:412)
> at
> org.apache.derby.client.net.NetConnection.initialize(NetConnection.java:297)
> at
> org.apache.derby.client.net.NetConnection.<init>(NetConnection.java:231)
> at
> org.apache.derby.client.net.ClientJDBCObjectFactoryImpl.newNetConnection(ClientJDBCObjectFactoryImpl.java:213)
> at
> org.apache.derby.jdbc.ClientDataSource.getConnection(ClientDataSource.java:186)
> at
> org.apache.derby.jdbc.ClientDataSource.getConnection(ClientDataSource.java:163)
> at
> org.apache.derbyTesting.functionTests.tests.jdbcapi.DataSourceTest.testJira95ds(DataSourceTest.java:808)
> This is a similar situation as described for EmbeddedDataSource in DERBY-95.
> This bug was found when converting the test for DERBY-95 to junit - the old
> test was explicitly creating an EmbeddedDataSource, so, this was never tested
> for Client (even when running with network server).
> Note, that the similar test for XADataSource, even for client, does not
> result in an NPE.
> I have not tested PooledDataSource, but it should be checked.
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