Re: NullPointerException thrown by Charset.availableCharsets (with jconn4.jar in classpath)

Hi Julien,

This problem looks to be an exact match to a reported bug in the jConnect for JDBC 7.07 driver, Change Request 704044.

Exception in thread "main" java.lang.NullPointerException

at

java.nio.charset.Charset.put(Unknown Source)

at

java.nio.charset.Charset.access$300(Unknown Source)

at

java.nio.charset.Charset$4.run(Unknown Source)

at

java.security.AccessController.doPrivileged(Native Method)

at

java.nio.charset.Charset.availableCharsets(Unknown Source)

at

CharSetTest.testCharSet(CharSetTest.java:18)

at

CharSetTest.main(CharSetTest.java:14)

This problem was fixed in April of 2012, so I would guess that your version of the driver is a build that pre-dates this fix.  You can verify your build of the driver using:

java -jar jconn4.jar

If you use the current released build of the jConnect driver this problem will be resolved as Paul indicates above.

Cheers,

-Ken