"No ClassLoaders found for" exception
-------------------------------------
Key: TAPESTRY-1951
URL: https://issues.apache.org/jira/browse/TAPESTRY-1951
Project: Tapestry
Issue Type: Bug
Environment: using 5.0.7-SNAPSHOT, deployed on jboss
Reporter: Joachim Van der Auwera
Fix For: 5.0.7
I have a component which contains the following
{code}
@Parameter( required = true, defaultPrefix = "prop" )
private ListGetter<Competency> selector;
public ListGetter<Competency> getSelector()
{
//return selector;
// for now, allways return "all"
return new ListGetter<Competency>()
{
public List<Competency> getList()
{
CompetencySelectorEJB sel = EquandaGlobal.getCompetencySelector();
List<Competency> list = null;
try
{
list = sel.selectEquandaAll();
}
catch ( EquandaPersistenceException ee )
{
log.error( ee, ee );
}
sel.remove();
return list;
}
};
}
{code}
When this is used, an exception is raised
{code}
2007-12-02 21:58:24,026 ERROR [be.synergetics.ca.t5gui.pages.CompetencyAll]
Render queue error in SetupRender[CompetencyAll:competencyselect.grid]: Failure
reading parameter source of component CompetencyAll:competencyselect.grid: No
ClassLoaders found for: be.synergetics.ca.t5gui.ListGetter
org.apache.tapestry.ioc.internal.util.TapestryException: Failure reading
parameter source of component CompetencyAll:competencyselect.grid: No
ClassLoaders found for: be.synergetics.ca.t5gui.ListGetter [at
classpath:be/synergetics/ca/t5gui/components/CompetencySelect.tml, line 3,
column 62]
at
org.apache.tapestry.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:901)
at
org.apache.tapestry.internal.structure.ComponentPageElementImpl.access$100(ComponentPageElementImpl.java:56)
at
org.apache.tapestry.internal.structure.ComponentPageElementImpl$12.render(ComponentPageElementImpl.java:470)
at
org.apache.tapestry.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:58)
at
org.apache.tapestry.internal.services.PageRenderQueueImpl.render(PageRenderQueueImpl.java:51)
at
$PageRenderQueue_1169ca6f5a4.render($PageRenderQueue_1169ca6f5a4.java)
at
$PageRenderQueue_1169ca6f5a0.render($PageRenderQueue_1169ca6f5a0.java)
at
org.apache.tapestry.internal.services.PageMarkupRendererImpl$1.renderMarkup(PageMarkupRendererImpl.java:47)
at
org.apache.tapestry.services.TapestryModule$20.renderMarkup(TapestryModule.java:1375)
at
$MarkupRenderer_1169ca6f5a2.renderMarkup($MarkupRenderer_1169ca6f5a2.java)
at
org.apache.tapestry.services.TapestryModule$19.renderMarkup(TapestryModule.java:1356)
at
$MarkupRenderer_1169ca6f5a2.renderMarkup($MarkupRenderer_1169ca6f5a2.java)
at
org.apache.tapestry.services.TapestryModule$18.renderMarkup(TapestryModule.java:1338)
at
$MarkupRenderer_1169ca6f5a2.renderMarkup($MarkupRenderer_1169ca6f5a2.java)
at
org.apache.tapestry.services.TapestryModule$17.renderMarkup(TapestryModule.java:1320)
at
$MarkupRenderer_1169ca6f5a2.renderMarkup($MarkupRenderer_1169ca6f5a2.java)
at
org.apache.tapestry.internal.services.PageMarkupRendererImpl.renderPageMarkup(PageMarkupRendererImpl.java:64)
at
$PageMarkupRenderer_1169ca6f59e.renderPageMarkup($PageMarkupRenderer_1169ca6f59e.java)
at
org.apache.tapestry.internal.services.PageResponseRendererImpl.renderPageResponse(PageResponseRendererImpl.java:56)
at
$PageResponseRenderer_1169ca6f547.renderPageResponse($PageResponseRenderer_1169ca6f547.java)
at
org.apache.tapestry.internal.services.PageRenderRequestHandlerImpl.handle(PageRenderRequestHandlerImpl.java:85)
at
$PageRenderRequestHandler_1169ca6f544.handle($PageRenderRequestHandler_1169ca6f544.java)
at
org.apache.tapestry.internal.services.PageRenderDispatcher.dispatch(PageRenderDispatcher.java:66)
at $Dispatcher_1169ca6f546.dispatch($Dispatcher_1169ca6f546.java)
at $Dispatcher_1169ca6f53a.dispatch($Dispatcher_1169ca6f53a.java)
at
org.apache.tapestry.services.TapestryModule$12.service(TapestryModule.java:932)
at
be.synergetics.ca.t5gui.services.AppModule$1.service(AppModule.java:98)
at $RequestFilter_1169ca6f539.service($RequestFilter_1169ca6f539.java)
at $RequestHandler_1169ca6f53b.service($RequestHandler_1169ca6f53b.java)
at
org.apache.tapestry.internal.services.LocalizationFilter.service(LocalizationFilter.java:43)
at $RequestHandler_1169ca6f53b.service($RequestHandler_1169ca6f53b.java)
at
org.apache.tapestry.services.TapestryModule$2.service(TapestryModule.java:521)
at $RequestHandler_1169ca6f53b.service($RequestHandler_1169ca6f53b.java)
at
org.apache.tapestry.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:79)
at $RequestHandler_1169ca6f53b.service($RequestHandler_1169ca6f53b.java)
at
org.apache.tapestry.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:94)
at
org.apache.tapestry.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:85)
at
org.apache.tapestry.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:77)
at
org.apache.tapestry.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:107)
at $RequestHandler_1169ca6f53b.service($RequestHandler_1169ca6f53b.java)
at $RequestHandler_1169ca6f533.service($RequestHandler_1169ca6f533.java)
at
org.apache.tapestry.services.TapestryModule$11.service(TapestryModule.java:915)
at
$HttpServletRequestHandler_1169ca6f532.service($HttpServletRequestHandler_1169ca6f532.java)
at org.apache.tapestry.TapestryFilter.doFilter(TapestryFilter.java:164)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
at java.lang.Thread.run(Thread.java:595)
Caused by: org.apache.tapestry.ioc.internal.util.TapestryException: Failure
reading parameter source of component CompetencyAll:competencyselect.grid: No
ClassLoaders found for: be.synergetics.ca.t5gui.ListGetter [at
classpath:be/synergetics/ca/t5gui/components/CompetencySelect.tml, line 3,
column 62]
at
org.apache.tapestry.internal.structure.InternalComponentResourcesImpl.readParameter(InternalComponentResourcesImpl.java:204)
at
org.apache.tapestry.corelib.components.Grid._$read_parameter_source(Grid.java)
at
org.apache.tapestry.corelib.components.Grid.setupDataSource(Grid.java:238)
at
org.apache.tapestry.corelib.components.Grid.setupRender(Grid.java:231)
at org.apache.tapestry.corelib.components.Grid.setupRender(Grid.java)
at
org.apache.tapestry.internal.structure.ComponentPageElementImpl$12$1.run(ComponentPageElementImpl.java:466)
at
org.apache.tapestry.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:891)
... 61 more
Caused by: org.apache.tapestry.ioc.internal.util.TapestryException: No
ClassLoaders found for: be.synergetics.ca.t5gui.ListGetter [at
classpath:be/synergetics/ca/t5gui/components/CompetencySelect.tml, line 3,
column 62]
at
org.apache.tapestry.internal.bindings.PropBinding.get(PropBinding.java:58)
at
org.apache.tapestry.internal.structure.InternalComponentResourcesImpl.readParameter(InternalComponentResourcesImpl.java:198)
... 67 more
Caused by: java.lang.RuntimeException: No ClassLoaders found for:
be.synergetics.ca.t5gui.ListGetter
at javassist.runtime.Desc.getClassType(Desc.java:153)
at javassist.runtime.Desc.getType(Desc.java:119)
at javassist.runtime.Desc.getType(Desc.java:75)
at
be.synergetics.ca.t5gui.components.CompetencySelect._$read_parameter_selector(CompetencySelect.java)
at
be.synergetics.ca.t5gui.components.CompetencySelect.getSelector(CompetencySelect.java:44)
at
be.synergetics.ca.t5gui.components.CompetencySelect.getRows(CompetencySelect.java:68)
at $PropertyConduit_1169ca6f567.get($PropertyConduit_1169ca6f567.java)
at
org.apache.tapestry.internal.bindings.PropBinding.get(PropBinding.java:54)
... 68 more
2007-12-02 21:58:24,031 INFO
[be.synergetics.ca.t5gui.services.AppModule.TimingFilter] Request time: 2931 ms
2007-12-02 21:58:24,032 ERROR
[org.apache.tapestry.services.TapestryModule.RequestExceptionHandler]
Processing of request failed with uncaught exception: Failure reading parameter
source of component CompetencyAll:competencyselect.grid: No ClassLoaders found
for: be.synergetics.ca.t5gui.ListGetter
org.apache.tapestry.ioc.internal.util.TapestryException: Failure reading
parameter source of component CompetencyAll:competencyselect.grid: No
ClassLoaders found for: be.synergetics.ca.t5gui.ListGetter [at
classpath:be/synergetics/ca/t5gui/components/CompetencySelect.tml, line 3,
column 62]
at
org.apache.tapestry.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:901)
at
org.apache.tapestry.internal.structure.ComponentPageElementImpl.access$100(ComponentPageElementImpl.java:56)
at
org.apache.tapestry.internal.structure.ComponentPageElementImpl$12.render(ComponentPageElementImpl.java:470)
at
org.apache.tapestry.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:58)
at
org.apache.tapestry.internal.services.PageRenderQueueImpl.render(PageRenderQueueImpl.java:51)
at
$PageRenderQueue_1169ca6f5a4.render($PageRenderQueue_1169ca6f5a4.java)
at
$PageRenderQueue_1169ca6f5a0.render($PageRenderQueue_1169ca6f5a0.java)
at
org.apache.tapestry.internal.services.PageMarkupRendererImpl$1.renderMarkup(PageMarkupRendererImpl.java:47)
at
org.apache.tapestry.services.TapestryModule$20.renderMarkup(TapestryModule.java:1375)
at
$MarkupRenderer_1169ca6f5a2.renderMarkup($MarkupRenderer_1169ca6f5a2.java)
at
org.apache.tapestry.services.TapestryModule$19.renderMarkup(TapestryModule.java:1356)
at
$MarkupRenderer_1169ca6f5a2.renderMarkup($MarkupRenderer_1169ca6f5a2.java)
at
org.apache.tapestry.services.TapestryModule$18.renderMarkup(TapestryModule.java:1338)
at
$MarkupRenderer_1169ca6f5a2.renderMarkup($MarkupRenderer_1169ca6f5a2.java)
at
org.apache.tapestry.services.TapestryModule$17.renderMarkup(TapestryModule.java:1320)
at
$MarkupRenderer_1169ca6f5a2.renderMarkup($MarkupRenderer_1169ca6f5a2.java)
at
org.apache.tapestry.internal.services.PageMarkupRendererImpl.renderPageMarkup(PageMarkupRendererImpl.java:64)
at
$PageMarkupRenderer_1169ca6f59e.renderPageMarkup($PageMarkupRenderer_1169ca6f59e.java)
at
org.apache.tapestry.internal.services.PageResponseRendererImpl.renderPageResponse(PageResponseRendererImpl.java:56)
at
$PageResponseRenderer_1169ca6f547.renderPageResponse($PageResponseRenderer_1169ca6f547.java)
at
org.apache.tapestry.internal.services.PageRenderRequestHandlerImpl.handle(PageRenderRequestHandlerImpl.java:85)
at
$PageRenderRequestHandler_1169ca6f544.handle($PageRenderRequestHandler_1169ca6f544.java)
at
org.apache.tapestry.internal.services.PageRenderDispatcher.dispatch(PageRenderDispatcher.java:66)
at $Dispatcher_1169ca6f546.dispatch($Dispatcher_1169ca6f546.java)
at $Dispatcher_1169ca6f53a.dispatch($Dispatcher_1169ca6f53a.java)
at
org.apache.tapestry.services.TapestryModule$12.service(TapestryModule.java:932)
at
be.synergetics.ca.t5gui.services.AppModule$1.service(AppModule.java:98)
at $RequestFilter_1169ca6f539.service($RequestFilter_1169ca6f539.java)
at $RequestHandler_1169ca6f53b.service($RequestHandler_1169ca6f53b.java)
at
org.apache.tapestry.internal.services.LocalizationFilter.service(LocalizationFilter.java:43)
at $RequestHandler_1169ca6f53b.service($RequestHandler_1169ca6f53b.java)
at
org.apache.tapestry.services.TapestryModule$2.service(TapestryModule.java:521)
at $RequestHandler_1169ca6f53b.service($RequestHandler_1169ca6f53b.java)
at
org.apache.tapestry.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:79)
at $RequestHandler_1169ca6f53b.service($RequestHandler_1169ca6f53b.java)
at
org.apache.tapestry.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:94)
at
org.apache.tapestry.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:85)
at
org.apache.tapestry.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:77)
at
org.apache.tapestry.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:107)
at $RequestHandler_1169ca6f53b.service($RequestHandler_1169ca6f53b.java)
at $RequestHandler_1169ca6f533.service($RequestHandler_1169ca6f533.java)
at
org.apache.tapestry.services.TapestryModule$11.service(TapestryModule.java:915)
at
$HttpServletRequestHandler_1169ca6f532.service($HttpServletRequestHandler_1169ca6f532.java)
at org.apache.tapestry.TapestryFilter.doFilter(TapestryFilter.java:164)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
at java.lang.Thread.run(Thread.java:595)
Caused by: org.apache.tapestry.ioc.internal.util.TapestryException: Failure
reading parameter source of component CompetencyAll:competencyselect.grid: No
ClassLoaders found for: be.synergetics.ca.t5gui.ListGetter [at
classpath:be/synergetics/ca/t5gui/components/CompetencySelect.tml, line 3,
column 62]
at
org.apache.tapestry.internal.structure.InternalComponentResourcesImpl.readParameter(InternalComponentResourcesImpl.java:204)
at
org.apache.tapestry.corelib.components.Grid._$read_parameter_source(Grid.java)
at
org.apache.tapestry.corelib.components.Grid.setupDataSource(Grid.java:238)
at
org.apache.tapestry.corelib.components.Grid.setupRender(Grid.java:231)
at org.apache.tapestry.corelib.components.Grid.setupRender(Grid.java)
at
org.apache.tapestry.internal.structure.ComponentPageElementImpl$12$1.run(ComponentPageElementImpl.java:466)
at
org.apache.tapestry.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:891)
... 61 more
Caused by: org.apache.tapestry.ioc.internal.util.TapestryException: No
ClassLoaders found for: be.synergetics.ca.t5gui.ListGetter [at
classpath:be/synergetics/ca/t5gui/components/CompetencySelect.tml, line 3,
column 62]
at
org.apache.tapestry.internal.bindings.PropBinding.get(PropBinding.java:58)
at
org.apache.tapestry.internal.structure.InternalComponentResourcesImpl.readParameter(InternalComponentResourcesImpl.java:198)
... 67 more
Caused by: java.lang.RuntimeException: No ClassLoaders found for:
be.synergetics.ca.t5gui.ListGetter
at javassist.runtime.Desc.getClassType(Desc.java:153)
at javassist.runtime.Desc.getType(Desc.java:119)
at javassist.runtime.Desc.getType(Desc.java:75)
at
be.synergetics.ca.t5gui.components.CompetencySelect._$read_parameter_selector(CompetencySelect.java)
at
be.synergetics.ca.t5gui.components.CompetencySelect.getSelector(CompetencySelect.java:44)
at
be.synergetics.ca.t5gui.components.CompetencySelect.getRows(CompetencySelect.java:68)
at $PropertyConduit_1169ca6f567.get($PropertyConduit_1169ca6f567.java)
at
org.apache.tapestry.internal.bindings.PropBinding.get(PropBinding.java:54)
... 68 more
{code}
If I however replace the code by the following, it works
{code}
@Parameter( required = true, defaultPrefix = "prop" )
private ListGetter<Competency> selector;
public ListGetter<Competency> getSelector()
{
return selector;
}
{code}
The ListGetter is a simple interface class, and this is deployed on jboss 4.2.2
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