-----Original Message-----
From: Daniel Mikusa [mailto:dmik...@vmware.com] 

>Maybe try adding the JVM option "-verbose:class" to "bin/setenv.sh".  This 
>option will cause the JVM to log when a class is loaded and from where it was 
>loaded.
>Dan

The following class load output excerpt results when I request a jsp from app1 
(wtpwebapps/PromotionCodes/) after both app2 (wtpwebapps/OsirisTest) and app1 
have been loaded in Tomcat startup. 

After the load of javax.el.ExpressionFactory, various loads from app2 
(wtpwebapps/OsirisTest/WEB-INF/lib/jsp-2.1-6.1.14.jar) occur.

<snip preceding context>

[Loaded javax.el.ExpressionFactory from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded org.apache.jasper.runtime.JspApplicationContextImpl from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/OsirisTest/WEB-INF/lib/jsp-2.1-6.1.14.jar]
[Loaded javax.el.ELContext from file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded org.apache.jasper.runtime.ELContextImpl from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/OsirisTest/WEB-INF/lib/jsp-2.1-6.1.14.jar]
[Loaded javax.el.ELException from file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded javax.el.ExpressionFactory$CacheValue from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded javax.el.ExpressionFactory$CacheKey from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded org.apache.el.ExpressionFactoryImpl from 
file:/C:/apache-tomcat-7.0.27/lib/jasper-el.jar]
[Loaded javax.el.ValueExpression from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded org.apache.el.ValueExpressionLiteral from 
file:/C:/apache-tomcat-7.0.27/lib/jasper-el.jar]
[Loaded org.apache.jasper.runtime.ProtectedFunctionMapper from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/OsirisTest/WEB-INF/lib/jsp-2.1-6.1.14.jar]
[Loaded javax.el.ELResolver from file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded javax.servlet.jsp.el.ImplicitObjectELResolver from 
file:/C:/apache-tomcat-7.0.27/lib/jsp-api.jar]
[Loaded javax.el.MapELResolver from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded javax.el.ResourceBundleELResolver from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded javax.el.ListELResolver from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded javax.el.ArrayELResolver from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded javax.el.BeanELResolver from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded javax.servlet.jsp.el.ScopedAttributeELResolver from 
file:/C:/apache-tomcat-7.0.27/lib/jsp-api.jar]
[Loaded javax.el.CompositeELResolver from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded javax.servlet.jsp.JspWriter from 
file:/C:/apache-tomcat-7.0.27/lib/jsp-api.jar]
[Loaded org.apache.jasper.runtime.JspWriterImpl from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/OsirisTest/WEB-INF/lib/jsp-2.1-6.1.14.jar]
[Loaded javax.servlet.jsp.tagext.BodyContent from 
file:/C:/apache-tomcat-7.0.27/lib/jsp-api.jar]
[Loaded org.apache.jasper.runtime.BodyContentImpl from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/OsirisTest/WEB-INF/lib/jsp-2.1-6.1.14.jar]
[Loaded javax.servlet.jsp.el.VariableResolver from 
file:/C:/apache-tomcat-7.0.27/lib/jsp-api.jar]
[Loaded javax.el.VariableMapper from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded org.apache.jasper.runtime.VariableMapperImpl from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/OsirisTest/WEB-INF/lib/jsp-2.1-6.1.14.jar]
[Loaded javax.servlet.jsp.el.ExpressionEvaluator from 
file:/C:/apache-tomcat-7.0.27/lib/jsp-api.jar]
[Loaded org.apache.jasper.runtime.ExpressionEvaluatorImpl from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/OsirisTest/WEB-INF/lib/jsp-2.1-6.1.14.jar]
[Loaded org.apache.jasper.security.SecurityUtil from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/OsirisTest/WEB-INF/lib/jsp-2.1-6.1.14.jar]
[Loaded javax.servlet.jsp.tagext.TryCatchFinally from 
file:/C:/apache-tomcat-7.0.27/lib/jsp-api.jar]
[Loaded javax.servlet.jsp.tagext.IterationTag from 
file:/C:/apache-tomcat-7.0.27/lib/jsp-api.jar]
[Loaded javax.servlet.jsp.tagext.TagSupport from 
file:/C:/apache-tomcat-7.0.27/lib/jsp-api.jar]
[Loaded org.springframework.web.servlet.tags.RequestContextAwareTag from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web.servlet-3.0.5.RELEASE.jar]
[Loaded org.springframework.web.servlet.tags.HtmlEscapingAwareTag from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web.servlet-3.0.5.RELEASE.jar]
[Loaded org.springframework.web.servlet.tags.MessageTag from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web.servlet-3.0.5.RELEASE.jar]
[Loaded org.springframework.web.servlet.support.JspAwareRequestContext from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web.servlet-3.0.5.RELEASE.jar]
[Loaded org.springframework.web.util.ExpressionEvaluationUtils from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web-3.0.5.RELEASE.jar]
[Loaded javax.servlet.jsp.el.ELException from 
file:/C:/apache-tomcat-7.0.27/lib/jsp-api.jar]
[Loaded javax.servlet.jsp.tagext.DynamicAttributes from 
file:/C:/apache-tomcat-7.0.27/lib/jsp-api.jar]
[Loaded org.springframework.web.servlet.tags.EditorAwareTag from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web.servlet-3.0.5.RELEASE.jar]
[Loaded org.springframework.web.servlet.tags.form.AbstractFormTag from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web.servlet-3.0.5.RELEASE.jar]
[Loaded 
org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web.servlet-3.0.5.RELEASE.jar]
[Loaded org.springframework.web.servlet.tags.form.AbstractHtmlElementTag from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web.servlet-3.0.5.RELEASE.jar]
[Loaded org.springframework.web.servlet.tags.form.FormTag from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web.servlet-3.0.5.RELEASE.jar]
[Loaded org.springframework.web.servlet.tags.form.TagWriter from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web.servlet-3.0.5.RELEASE.jar]
[Loaded org.springframework.web.servlet.support.BindStatus from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web.servlet-3.0.5.RELEASE.jar]
[Loaded org.springframework.web.servlet.tags.form.TagWriter$SafeWriter from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web.servlet-3.0.5.RELEASE.jar]
[Loaded org.springframework.web.servlet.tags.form.TagWriter$TagStateEntry from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web.servlet-3.0.5.RELEASE.jar]
[Loaded org.springframework.web.servlet.tags.form.ValueFormatter from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web.servlet-3.0.5.RELEASE.jar]
[Loaded org.springframework.web.util.HtmlUtils from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web-3.0.5.RELEASE.jar]
[Loaded org.springframework.web.util.HtmlCharacterEntityReferences from 
file:/C:/sandpit-28/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/PromotionCodes/WEB-INF/lib/org.springframework.web-3.0.5.RELEASE.jar]
[Loaded org.apache.jasper.runtime.JspWriterImpl from 
file:/C:/apache-tomcat-7.0.27/lib/jasper.jar]
[Loaded org.apache.jasper.runtime.BodyContentImpl from 
file:/C:/apache-tomcat-7.0.27/lib/jasper.jar]
[Loaded org.apache.jasper.el.ExpressionEvaluatorImpl from 
file:/C:/apache-tomcat-7.0.27/lib/jasper.jar]
[Loaded org.apache.jasper.el.ELContextImpl from 
file:/C:/apache-tomcat-7.0.27/lib/jasper.jar]
[Loaded org.apache.jasper.el.FunctionMapperImpl from 
file:/C:/apache-tomcat-7.0.27/lib/jasper.jar]
[Loaded javax.el.PropertyNotWritableException from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded javax.el.PropertyNotFoundException from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded javax.el.MethodNotFoundException from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded javax.el.BeanELResolver$ConcurrentCache from 
file:/C:/apache-tomcat-7.0.27/lib/el-api.jar]
[Loaded javax.servlet.jsp.SkipPageException from 
file:/C:/apache-tomcat-7.0.27/lib/jsp-api.jar]
13/08/2012 3:16:01 PM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.ClassCastException: org.apache.jasper.runtime.ELContextImpl cannot be 
cast to org.apache.jasper.el.ELContextImpl
        at 
org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:982)
        at 
org.apache.jsp.WEB_002dINF.views.promoCodeWelcome_jsp._jspService(promoCodeWelcome_jsp.java:171)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

<snip following code>

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