Eclipse Europa, Unable to bind common-collection.jar to web project

[Sagar Rohankar]

Hi Ranchers,

I'm using Quartz (Java Scheduling API) in my web app, Now some classes in Quartz, like JobDetail, depends upon the "commons-collection.jar" , Now when I add "external jar" in "build path" to my web app project, clean it and re build it... Its raised the same error, that its unable to find the commons-collection.jar, especially the exception is:

 SEVERE: Exception sending context initialized event to listener instance of 
class com.goldenembryo.gtplcart.GTPLContextListener
java.lang.NoClassDefFoundError: org/apache/commons/collections/SetUtils
	at org.quartz.JobDetail.<init>(JobDetail.java:85)
	at com.goldenembryo.gtplcart.GTPLContextListener.contextInitialized(GTPLContextListener.java:101)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3830)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4337)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:516)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:566)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.collections.SetUtils
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)   

I remove and re attched the tomcat installation , still no use..
I export the ".war" file for my same we app, in /lib directory there is NO "commons-collection.jar", Whats happening with Eclipse?

[omi sharma]

Try to put the common-collection.jar in web-inf/lib directory under the eclipse project dir.

[Sagar Rohankar]

omi sharma wrote:Try to put the common-collection.jar in web-inf/lib directory under the eclipse project dir.

Yes, that is something called "remedy" on this problem, I did the same and "manually" put the .jar file in WEB-INF/lib dir. But why this problem is coming? I tried to add as a "external" jar on build path, also tried to use "User Library " for that same jar file, but no use..