matlabpool error after java update

Question

James Barrett 2013-2-20

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https://ww2.mathworks.cn/matlabcentral/answers/64235-matlabpool-error-after-java-update

Dear all, I've encountered the following error after updating Java on my MacBook Pro this afternoon. The error:

>> matlabpool
Error using matlabpool (line 134)
Java exception occurred:
java.lang.NullPointerException
  at java.util.logging.Logger.demandLogger(Logger.java:286)
  at java.util.logging.Logger.getLogger(Logger.java:321)

And the information from Apple regarding the update:

"Java for OS X 2013-001 delivers improved security, reliability, and compatibility by updating Java SE 6 to 1.6.0_41.

On systems that have not already installed Java for OS X 2012-006, this update disables the Java SE 6 applet plug-in. To use applets on a web page, click on the region labeled “Missing plug-in” to download the latest version of the Java applet plug-in from Oracle.

Please quit any web browsers and Java applications before installing this update."

Everything was working fine before this. Many thanks, James.

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Daniel Golden 2013-2-22

编辑：Daniel Golden 2013-2-22

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I have the same problem running Matlab R2012a on Mac OS X 10.7.5 on an early 2012 iMac. Here's the first few lines of my Matlab "ver" command output:

>> ver                                                                                                                                        
--------------------------------------------------------------------------------------------------------
MATLAB Version: 7.14.0.739 (R2012a)
MATLAB License Number: ••••••
Operating System: Mac OS X  Version: 10.7.5 Build: 11G63 
Java Version: Java 1.6.0_41-b02-445-11M4107 with Apple Inc. Java HotSpot(TM) 64-Bit Server VM mixed mode
--------------------------------------------------------------------------------------------------------