Hi Guys
I've seen this a few times in training today on AEM6.0
A student duplicates a .java file under /apps, and the ClassLoader starts throwing errors. You delete the file, but the errors keep occurring until you restart AEM.
The rendered page replaces the design reference with a link to /etc/designs/null.css (which obviously fails)
Log messages and Class loader error shown below:
Is this a bug?
27.08.2014 10:23:17.369 *INFO* [0:0:0:0:0:0:0:1 [1409098997367] GET /content/training-site/en/null.css HTTP/1.1] org.apache.sling.engine.impl.SlingRequestProcessorImpl service: Resource /content/training-site/en/null.css not found
27.08.2014 10:23:17.862 *WARN* [0:0:0:0:0:0:0:1 [1409098997690] GET /libs/wcm/core/content/components.1409098997561.html HTTP/1.1] org.apache.jackrabbit.oak.plugins.index.property.strategy.ContentMirrorStoreStrategy Traversed 1000 nodes using index jcr:primaryType with filter Filter(query=select [jcr:path], [jcr:score], * from [cq:Component] as a where isdescendantnode(a, '/') /* xpath: /jcr:root//element(*, cq:Component) */, path=//*)
27.08.2014 10:23:17.918 *INFO* [0:0:0:0:0:0:0:1 [1409098997690] GET /libs/wcm/core/content/components.1409098997561.html HTTP/1.1] com.day.cq.wcm.core.impl.components.ComponentCacheImpl Loaded 1056 components in 225ms
27.08.2014 10:23:18.621 *INFO* [0:0:0:0:0:0:0:1 [1409098997690] GET /libs/wcm/core/content/components.1409098997561.html HTTP/1.1] com.day.cq.wcm.core.impl.components.ComponentServlet provided components.
27.08.2014 10:23:51.831 *INFO* [pool-5-thread-2] com.day.cq.wcm.core.impl.components.ComponentCacheImpl Detecting component change. invalidating cache.
27.08.2014 10:23:56.877 *ERROR* [0:0:0:0:0:0:0:1 [1409099036498] GET /content/training-site/en/products.html HTTP/1.1] org.apache.sling.commons.classloader.impl.ClassLoaderFacade Dynamic class loader has already been deactivated.
org.apache.sling.commons.classloader.impl.ClassLoaderFacade$StackTraceProbe: Dynamic class loader has already been deactivated.
at org.apache.sling.commons.classloader.impl.ClassLoaderFacade.checkManagerActive(ClassLoaderFacade.java:69)
at org.apache.sling.commons.classloader.impl.ClassLoaderFacade.loadClass(ClassLoaderFacade.java:133)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at apps.training.components.topnav.SightlyJava_topnav.render(SightlyJava_topnav.java:27)
at io.sightly.java.api.BaseRenderUnit.render(BaseRenderUnit.java:39)
at io.sightly.java.engine.SightlyScriptEngine.evaluateScript(SightlyScriptEngine.java:106)
at io.sightly.java.engine.SightlyScriptEngine.eval(SightlyScriptEngine.java:91)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:463)
at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:511)
at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:45)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:64)
at com.day.cq.wcm.core.impl.WCMDeveloperModeFilter.doFilterWithErrorHandling(WCMDeveloperModeFilter.java:145)
at com.day.cq.wcm.core.impl.WCMDeveloperModeFilter.doFilter(WCMDeveloperModeFilter.java:113)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilterWithErrorHandling(WCMDebugFilter.java:182)
at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:149)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at com.day.cq.wcm.core.impl.WCMComponentFilter.doFilter(WCMComponentFilter.java:252)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at com.day.cq.personalization.impl.TargetComponentFilter.doFilter(TargetComponentFilter.java:96)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processComponent(SlingRequestProcessorImpl.java:284)
at org.apache.sling.engine.impl.SlingRequestProcessorImpl.dispatchRequest(SlingRequestProcessorImpl.java:324)
at org.apache.sling.engine.impl.request.SlingRequestDispatcher.dispatch(SlingRequestDispatcher.java:216)
at org.apache.sling.engine.impl.request.SlingRequestDispatcher.include(SlingRequestDispatcher.java:103)
at com.day.cq.wcm.core.impl.WCMComponentFilter$ForwardRequestDispatcher.include(WCMComponentFilter.java:431)
at com.adobe.cq.sightly.WCMScriptHelper.includeResource(WCMScriptHelper.java:127)
at com.adobe.cq.sightly.WCMScriptHelper.includeResource(WCMScriptHelper.java:82)
at com.adobe.cq.sightly.internal.extensions.ResourceExtension$1.provideResource(ResourceExtension.java:111)
at com.adobe.cq.sightly.internal.extensions.ResourceExtension$1.call(ResourceExtension.java:93)
at io.sightly.java.runtime.common.SightlyRuntimeImpl.call(SightlyRuntimeImpl.java:51)
at apps.training.components.page_content.SightlyJava_header.render(SightlyJava_header.java:25)
at io.sightly.java.api.BaseRenderUnit.render(BaseRenderUnit.java:39)
at io.sightly.java.engine.SightlyScriptEngine.evaluateScript(SightlyScriptEngine.java:106)
at io.sightly.java.engine.SightlyScriptEngine.eval(SightlyScriptEngine.java:91)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:463)
at com.adobe.cq.sightly.WCMScriptHelper.includeScript(WCMScriptHelper.java:166)
at com.adobe.cq.sightly.internal.extensions.IncludeExtension$1.call(IncludeExtension.java:72)
at io.sightly.java.runtime.common.SightlyRuntimeImpl.call(SightlyRuntimeImpl.java:51)
at apps.training.components.page_content.SightlyJava_body.render(SightlyJava_body.java:25)
at io.sightly.java.api.BaseRenderUnit.render(BaseRenderUnit.java:39)
at io.sightly.java.engine.SightlyScriptEngine.evaluateScript(SightlyScriptEngine.java:106)
at io.sightly.java.engine.SightlyScriptEngine.eval(SightlyScriptEngine.java:91)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:463)
at com.adobe.cq.sightly.WCMScriptHelper.includeScript(WCMScriptHelper.java:166)
at com.adobe.cq.sightly.internal.extensions.IncludeExtension$1.call(IncludeExtension.java:72)
at io.sightly.java.runtime.common.SightlyRuntimeImpl.call(SightlyRuntimeImpl.java:51)
at libs.wcm.foundation.components.page.SightlyJava_page.render(SightlyJava_page.java:30)
at io.sightly.java.api.BaseRenderUnit.render(BaseRenderUnit.java:39)
at io.sightly.java.engine.SightlyScriptEngine.evaluateScript(SightlyScriptEngine.java:106)
at io.sightly.java.engine.SightlyScriptEngine.eval(SightlyScriptEngine.java:91)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:463)
at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:511)
at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:45)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:64)
at com.day.cq.wcm.core.impl.WCMDeveloperModeFilter.doFilterWithErrorHandling(WCMDeveloperModeFilter.java:145)
at com.day.cq.wcm.core.impl.WCMDeveloperModeFilter.doFilter(WCMDeveloperModeFilter.java:113)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilterWithErrorHandling(WCMDebugFilter.java:182)
at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:149)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at com.day.cq.wcm.core.impl.WCMComponentFilter.doFilter(WCMComponentFilter.java:252)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at com.day.cq.personalization.impl.TargetComponentFilter.doFilter(TargetComponentFilter.java:96)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processComponent(SlingRequestProcessorImpl.java:284)
at org.apache.sling.engine.impl.SlingRequestProcessorImpl.dispatchRequest(SlingRequestProcessorImpl.java:324)
at org.apache.sling.engine.impl.request.SlingRequestDispatcher.dispatch(SlingRequestDispatcher.java:216)
at org.apache.sling.engine.impl.request.SlingRequestDispatcher.include(SlingRequestDispatcher.java:103)
at com.day.cq.wcm.core.impl.WCMComponentFilter$ForwardRequestDispatcher.include(WCMComponentFilter.java:431)
at org.apache.jsp.libs.foundation.components.primary.cq.Page.Page_jsp._jspService(Page_jsp.java:106)
at org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
