Friday, June 29, 2012

mvn test: LocalJobRunner.java with java.lang.OutOfMemoryError

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When I run mvn test to unit test some hadoop related program, I got the following: java.lang.OutOfMemoryError: Java heap space     at org....
Thursday, June 28, 2012

maven shade plugin: Invalid signature file digest for Manifest main attributes

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If you get the following error message with maven shade plugin: Exception in thread "main" java.lang.SecurityException: Invalid ...
17 comments:
Sunday, June 24, 2012

Eclipse: fix plugin execution not covered by lifecycle configuration

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I recently used maven-jaxb2-plugin to generate java classes based on xml schemas (xsd).  I can run "mvn compile" on command line t...
Friday, June 8, 2012

Enable CORS support in REST services with Spring 3.1

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We are working on a web project, which has 2 components, UI and web services.  These 2 components are deployed to 2 different servers.  UI u...
12 comments:
Wednesday, May 30, 2012

log4j filter some text and don't log it

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Use org.apache.log4j.varia.StringMatchFilter to filter the text not to display.  Here is the example for log4j.xml: <?xml version=...
1 comment:
Wednesday, May 23, 2012

mac: no acceptable C compiler found in $PATH

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If you get the following error on mac: configure: error: no acceptable C compiler found in $PATH Here is the step to fix it: 1. download ...
Saturday, May 19, 2012

Enable Spring Jdbc Transaction with Annotation

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Spring 3.1 introduced a new annotation @EnableTransactionManagement .  With it, all xml configuration can be got rid of now.  Here is the ex...