Greetings,

I am attempting to add KeyCloak authentication filter. Unfortunately, once the 
gs-sec-keycloak-2.19.0.jar file is added to WEB-INF/lib the Add New 
Authentication Filter button on the GeoServer Security/Authentication page 
fails silently with a 500 error. The full stack trace is included at the end of 
this email.

I discovered this first in our server environment comprised of:

  *   GeoServer 2.19.0
  *   gs-sec-keycloak-2.19.0.jar
  *   Tomcat 9.0.17
  *   OpenJDK 11.0.2_9
  *   RHEL 7
But, I am able to reproduce it exactly using the Platform independent binary:

  *   GeoServer 2.19.0
  *   gs-sec-keycloak-2.19.0.jar
  *   Jetty 9.4.36
  *   Oracle Corporation: 1.8.0_171 (Java HotSpot(TM) 64-Bit Server VM)
  *   MacOS 10.15.7

Is there a prerequisite JAR file required for the keycloak plugin to work? Any 
suggestions welcome. Thanks!

Here is the stack trace:
HTTP ERROR 500 javax.servlet.ServletException: 
org.springframework.web.util.NestedServletException: Handler dispatch failed; 
nested exception is java.lang.NoClassDefFoundError: 
org/keycloak/representations/adapters/config/AdapterConfig
URI:

/geoserver/web/wicket/bookmarkable/org.geoserver.security.web.auth.AuthenticationPage

STATUS:

500

MESSAGE:

javax.servlet.ServletException: 
org.springframework.web.util.NestedServletException: Handler dispatch failed; 
nested exception is java.lang.NoClassDefFoundError: 
org/keycloak/representations/adapters/config/AdapterConfig

SERVLET:

dispatcher

CAUSED BY:

javax.servlet.ServletException: 
org.springframework.web.util.NestedServletException: Handler dispatch failed; 
nested exception is java.lang.NoClassDefFoundError: 
org/keycloak/representations/adapters/config/AdapterConfig

CAUSED BY:

org.springframework.web.util.NestedServletException: Handler dispatch failed; 
nested exception is java.lang.NoClassDefFoundError: 
org/keycloak/representations/adapters/config/AdapterConfig

CAUSED BY:

java.lang.NoClassDefFoundError: 
org/keycloak/representations/adapters/config/AdapterConfig

CAUSED BY:

java.lang.ClassNotFoundException: 
org.keycloak.representations.adapters.config.AdapterConfig

Caused by:
javax.servlet.ServletException: 
org.springframework.web.util.NestedServletException: Handler dispatch failed; 
nested exception is java.lang.NoClassDefFoundError: 
org/keycloak/representations/adapters/config/AdapterConfig
        at 
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:162)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
        at org.eclipse.jetty.server.Server.handle(Server.java:516)
        at 
org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:388)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:633)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:380)
        at 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:273)
        at 
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
        at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
        at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)
        at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)
        at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)
        at 
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129)
        at 
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:375)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:773)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:905)
        at java.lang.Thread.run(Thread.java:748)
Caused by: org.springframework.web.util.NestedServletException: Handler 
dispatch failed; nested exception is java.lang.NoClassDefFoundError: 
org/keycloak/representations/adapters/config/AdapterConfig
        at 
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1055)
        at 
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
        at 
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
        at 
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
        at 
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
        at 
org.eclipse.jetty.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1452)
        at 
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:791)
        at 
org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1626)
        at 
org.geoserver.filters.ThreadLocalsCleanupFilter.doFilter(ThreadLocalsCleanupFilter.java:26)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:69)
        at 
org.geoserver.wms.animate.AnimatorFilter.doFilter(AnimatorFilter.java:70)
        at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:66)
        at 
org.geoserver.filters.SpringDelegatingFilter.doFilter(SpringDelegatingFilter.java:41)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at 
org.geoserver.platform.AdvancedDispatchFilter.doFilter(AdvancedDispatchFilter.java:37)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:70)
        at 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
        at 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:74)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:70)
        at 
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:74)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
        at 
org.geoserver.security.filter.GeoServerAnonymousAuthenticationFilter.doFilter(GeoServerAnonymousAuthenticationFilter.java:51)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:70)
        at 
org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:74)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
        at 
org.geoserver.security.filter.GeoServerUserNamePasswordAuthenticationFilter.doFilter(GeoServerUserNamePasswordAuthenticationFilter.java:122)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:70)
        at 
org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:158)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:74)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:70)
        at 
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
        at 
org.geoserver.security.filter.GeoServerSecurityContextPersistenceFilter$1.doFilter(GeoServerSecurityContextPersistenceFilter.java:52)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:74)
        at 
org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
        at 
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
        at 
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
        at 
org.geoserver.security.GeoServerSecurityFilterChainProxy.doFilter(GeoServerSecurityFilterChainProxy.java:142)
        at 
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358)
        at 
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at org.geoserver.filters.LoggingFilter.doFilter(LoggingFilter.java:101)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at 
org.geoserver.filters.XFrameOptionsFilter.doFilter(XFrameOptionsFilter.java:77)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at org.geoserver.filters.GZIPFilter.doFilter(GZIPFilter.java:47)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at 
org.geoserver.filters.SessionDebugFilter.doFilter(SessionDebugFilter.java:46)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at 
org.geoserver.filters.FlushSafeFilter.doFilter(FlushSafeFilter.java:42)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at 
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
        at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
        at 
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:201)
        at 
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:548)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
        at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:602)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1435)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1350)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
        at 
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:191)
        at 
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146)
        ... 17 more
Caused by: java.lang.NoClassDefFoundError: 
org/keycloak/representations/adapters/config/AdapterConfig
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
        at java.lang.Class.getDeclaredMethod(Class.java:2128)
        at 
java.io.ObjectStreamClass.getPrivateMethod(ObjectStreamClass.java:1575)
        at java.io.ObjectStreamClass.access$1700(ObjectStreamClass.java:79)
        at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:508)
        at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:482)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.io.ObjectStreamClass.<init>(ObjectStreamClass.java:482)
        at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:379)
        at java.io.ObjectOutputStream.writeClass(ObjectOutputStream.java:1213)
        at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1120)
        at 
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
        at 
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
        at 
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
        at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348)
        at java.util.ArrayList.writeObject(ArrayList.java:766)
        at sun.reflect.GeneratedMethodAccessor210.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:1128)
        at 
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496)
        at 
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
        at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
        at 
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
        at 
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
        at 
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
        at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
        at 
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
        at 
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
        at 
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
        at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
        at 
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
        at 
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
        at 
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
        at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348)
        at java.util.ArrayList.writeObject(ArrayList.java:766)
        at sun.reflect.GeneratedMethodAccessor210.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:1128)
        at 
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496)
        at 
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
        at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
        at 
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
        at 
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
        at 
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
        at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348)
        at 
org.apache.wicket.serialize.java.JavaSerializer$SerializationCheckerObjectOutputStream.writeObjectOverride(JavaSerializer.java:256)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344)
        at 
org.apache.wicket.serialize.java.JavaSerializer.serialize(JavaSerializer.java:78)
        at 
org.apache.wicket.pageStore.AbstractPageStore.serializePage(AbstractPageStore.java:133)
        at 
org.apache.wicket.pageStore.DefaultPageStore.createSerializedPage(DefaultPageStore.java:281)
        at 
org.apache.wicket.pageStore.DefaultPageStore.storePage(DefaultPageStore.java:61)
        at 
org.apache.wicket.page.PageStoreManager$PersistentRequestAdapter.storeTouchedPages(PageStoreManager.java:413)
        at 
org.apache.wicket.page.RequestAdapter.commitRequest(RequestAdapter.java:193)
        at 
org.apache.wicket.page.AbstractPageManager.commitRequest(AbstractPageManager.java:76)
        at 
org.apache.wicket.page.PageManagerDecorator.commitRequest(PageManagerDecorator.java:74)
        at 
org.apache.wicket.page.PageAccessSynchronizer$2.commitRequest(PageAccessSynchronizer.java:270)
        at org.apache.wicket.Application$3.onDetach(Application.java:1789)
        at 
org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:105)
        at 
org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:101)
        at 
org.apache.wicket.util.listener.ListenerCollection$1.notify(ListenerCollection.java:120)
        at 
org.apache.wicket.util.listener.ListenerCollection.reversedNotify(ListenerCollection.java:144)
        at 
org.apache.wicket.util.listener.ListenerCollection.reversedNotifyIgnoringExceptions(ListenerCollection.java:113)
        at 
org.apache.wicket.request.cycle.RequestCycleListenerCollection.onDetach(RequestCycleListenerCollection.java:100)
        at 
org.apache.wicket.request.cycle.RequestCycle.onDetach(RequestCycle.java:649)
        at 
org.apache.wicket.request.cycle.RequestCycle.detach(RequestCycle.java:594)
        at 
org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:297)
        at 
org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:261)
        at 
org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:203)
        at 
org.apache.wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:137)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
        at 
org.springframework.web.servlet.mvc.ServletWrappingController.handleRequestInternal(ServletWrappingController.java:166)
        at 
org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:177)
        at 
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52)
        at 
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
        ... 111 more
Caused by: java.lang.ClassNotFoundException: 
org.keycloak.representations.adapters.config.AdapterConfig
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        at 
org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:544)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 192 more




Peter Spry


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