Question

I am getting the following error on initialization of my webapp. Has anyone seen this one before?

This occurs where spring is attempting to load SimpleUrlHandlerMapping

Caused by: java.lang.NoSuchFieldError: NULL
    at org.springframework.expression.TypedValue.<clinit>(TypedValue.java:32)
    at org.springframework.expression.spel.support.StandardEvaluationContext.setRootObject(StandardEvaluationContext.java:85)
    at org.springframework.expression.spel.support.StandardEvaluationContext.<init>(StandardEvaluationContext.java:74)
    at org.springframework.context.expression.StandardBeanExpressionResolver.evaluate(StandardBeanExpressionResolver.java:124)
    at org.springframework.beans.factory.support.AbstractBeanFactory.evaluateBeanDefinitionString(AbstractBeanFactory.java:1299)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.evaluate(BeanDefinitionValueResolver.java:210)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:182)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1360)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)

here’s the contents of my lib directory:

thom@motion:~/workspace/gxt-ui/war/WEB-INF/lib$ ls -l
total 8228
-rw-rw-r-- 1 thom thom 5434137 2012-01-11 21:59 gwt-servlet.jar
-rw-rw-r-- 1 thom thom  589253 2012-02-17 13:48 org.springframework.beans-3.1.0.RELEASE.jar
-rw-rw-r-- 1 thom thom  829601 2012-02-17 13:46 org.springframework.context-3.1.0.RELEASE.jar
-rw-rw-r-- 1 thom thom  442400 2012-02-17 13:50 org.springframework.core-3.1.0.RELEASE.jar
-rw-rw-r-- 1 thom thom  540819 2012-02-17 14:01 org.springframework.web-3.1.0.RELEASE.jar
-rw-rw-r-- 1 thom thom  572266 2012-02-13 10:49 org.springframework.web.servlet-3.1.0.RELEASE.jar

Answer 1

Turns out the problem was that I was missing one of the Spring libraries being used by the application and it was throwing a bad exception. In my case, the missing library was: org.springframework.expression-3.1.0.RELEASE.jar.

Thanks for the help.