Good morning,
We are running into intermittent issues on our WebSphere 8.5 environment. The
server keeps crashing and we see no cause in our logs. With that said, admins
have seen the following error in our logs and I can’t make sense out of it.
07:48:51.632 ERROR [CVIENS | 10.79.49.41 | 5uRaDK6Hu4gj0ABIXyNTo76]
o.a.wicket.DefaultExceptionMapper [DefaultExceptionMapper.java:170] -
Unexpected error occurred
java.lang.ClassCastException:
gov.osc.ouf.web.components.document.search.DocumentSearchPanel$ClassificationsPanel$1
incompatible with org.apache.wicket.markup.html.form.FormComponent
at
de.agilecoders.wicket.core.markup.html.bootstrap.form.FormGroup.findFormComponents(FormGroup.java:255)
~[wicket-bootstrap-core-0.9.22.jar:0.9.22]
at
de.agilecoders.wicket.core.markup.html.bootstrap.form.FormGroup.onInitialize(FormGroup.java:175)
~[wicket-bootstrap-core-0.9.22.jar:0.9.22]
at
org.apache.wicket.Component.fireInitialize(Component.java:877)
~[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.MarkupContainer$3.component(MarkupContainer.java:967)
~[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.MarkupContainer$3.component(MarkupContainer.java:963)
~[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:144)
~[wicket-util-6.24.0.jar:6.24.0]
at
org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:162)
~[wicket-util-6.24.0.jar:6.24.0]
at
org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:162)
~[wicket-util-6.24.0.jar:6.24.0]
at
org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:162)
~[wicket-util-6.24.0.jar:6.24.0]
at
org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:123)
~[wicket-util-6.24.0.jar:6.24.0]
at
org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:192)
~[wicket-util-6.24.0.jar:6.24.0]
at
org.apache.wicket.MarkupContainer.visitChildren(MarkupContainer.java:875)
~[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.MarkupContainer.internalInitialize(MarkupContainer.java:962)
~[wicket-core-6.24.0.jar:6.24.0]
at org.apache.wicket.Page.isPageStateless(Page.java:463)
~[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.core.request.mapper.AbstractBookmarkableMapper.getPageInfo(AbstractBookmarkableMapper.java:465)
~[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.core.request.mapper.AbstractBookmarkableMapper.mapHandler(AbstractBookmarkableMapper.java:409)
~[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.core.request.mapper.MountedMapper.mapHandler(MountedMapper.java:395)
~[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.request.mapper.CompoundRequestMapper.mapHandler(CompoundRequestMapper.java:215)
~[wicket-request-6.24.0.jar:6.24.0]
at
org.apache.wicket.request.cycle.RequestCycle.mapUrlFor(RequestCycle.java:429)
[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:281)
~[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.core.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:175)
~[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:890)
~[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
~[wicket-request-6.24.0.jar:6.24.0]
at
org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:261)
[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:218)
[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:289)
[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:259)
[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:201)
[wicket-core-6.24.0.jar:6.24.0]
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:282)
[wicket-core-6.24.0.jar:6.24.0]
at
com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195)
[com.ibm.ws.webcontainer.jar:na]
at
com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91)
[com.ibm.ws.webcontainer.jar:na]
at
com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:967)
[com.ibm.ws.webcontainer.jar:na]
at
com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1107)
[com.ibm.ws.webcontainer.jar:na]
at
com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:4075)
[com.ibm.ws.webcontainer.jar:na]
at
com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)
[com.ibm.ws.webcontainer.jar:na]
at
com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:1019)
[com.ibm.ws.webcontainer.jar:na]
at
com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1817)
[com.ibm.ws.webcontainer.jar:na]
at
com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:213)
[com.ibm.ws.webcontainer.jar:na]
at
com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:463)
[com.ibm.ws.runtime.jar:na]
at
com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:530)
[com.ibm.ws.runtime.jar:na]
at
com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:316)
[com.ibm.ws.runtime.jar:na]
at
com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:88)
[com.ibm.ws.runtime.jar:na]
at
com.ibm.ws.ssl.channel.impl.SSLReadServiceContext$SSLReadCompletedCallback.complete(SSLReadServiceContext.java:1833)
[com.ibm.ws.runtime.jar:na]
at
com.ibm.ws.tcp.channel.impl.WorkQueueManager.requestComplete(WorkQueueManager.java:558)
[na:CCX.CF [o1800.01]]
at
com.ibm.ws.tcp.channel.impl.WorkQueueManager.attemptIO(WorkQueueManager.java:608)
[na:CCX.CF [o1800.01]]
at
com.ibm.ws.tcp.channel.impl.WorkQueueManager.workerRun(WorkQueueManager.java:985)
[na:CCX.CF [o1800.01]]
at
com.ibm.ws.tcp.channel.impl.WorkQueueManager$Worker.run(WorkQueueManager.java:1074)
[na:CCX.CF [o1800.01]]
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1892)
[com.ibm.ws.runtime.jar:na]
We are getting a ClassCastException on ClassificationPanel being incompatible
with FormComponent, however ClassificationPanel extends FormComponentPanel
class ClassificationsPanel extends
FormComponentPanel<SimpleImageSearchCriteria> {
...
}
I’m sure there’s a simple answer here but I’m not seeing it. It’s only
happening on WebSphere and are not seeing this behavior on test Jetty
environment. We are using Apache Wicket 6.24.0 and Wicket-Bootstrap 0.9.22. Any
insight would be appreciated.
Thank you
Eric H.
