2014-02-14 18:13 GMT+04:00 JB MORLA <jbmo...@gmail.com>:
> Maybe you added a .jar file to the build path and there is a conflict with
> the jars already present in Eclipse and Tomcat.
> My solution was to remove the jars.
+1.
> On Thu, Feb 13, 2014 at 10:27 PM, Dave Kennedy <davek1...@gmail.com> wrote:
>
>> Env:
>> Windows 7
>> Java: jdk1.7.0_51
>> STS 3.4.0.RELEASE (Based on Eclipse 4.3.1)
>> Tomcat: apache-tomcat-7.0.50
>>
>>
>> INFO: Starting Servlet Engine: Apache Tomcat/7.0.50
>> Feb 13, 2014 1:17:22 PM org.apache.catalina.core.ContainerBase
>> startInternal
>> SEVERE: A child container failed during start
>> java.util.concurrent.ExecutionException:
>> java.lang.ExceptionInInitializerError
>> at java.util.concurrent.FutureTask.report(FutureTask.java:122)
>> at java.util.concurrent.FutureTask.get(FutureTask.java:188)
>> at
>>
>> org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
>> at
>> org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:801)
>> at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
>> at
>>
>> org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
>> at
>>
>> org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
>> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
>> at
>>
>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>> at
>>
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>> at java.lang.Thread.run(Thread.java:744)
>> Caused by: java.lang.ExceptionInInitializerError
>> at
>>
>> org.apache.catalina.startup.ContextConfig.createWebXmlDigester(ContextConfig.java:522)
>> at
>> org.apache.catalina.startup.ContextConfig.init(ContextConfig.java:843)
A NPE there in 7.0.50 happens when one of {servlet-api.jar,
jsp-api.jar} files is not found (as has been discussed previously on
this mailing list).
You may want to try 7.0.52 that is currently being voted on dev@.
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