## Actual behiavor
After successful migration from 4.1.1 to 4.3.1, it's not possible to open JSON Configuration in Gluu Admin interface. This was working in 4.1.1 version.
## Error message in Gui
Failed to load configuration from LDAP
## Log entry
Found following in /opt/gluu/jetty/identity/logs/oxtrust.log file:
```
2022-01-25 09:08:34,932 DEBUG [qtp1472465-355] [org.gluu.oxtrust.action.JsonConfigurationAction] (JsonConfigurationAction.java:110) - Loading oxauth-config.json and oxtrust-config.json
2022-01-25 09:08:34,963 ERROR [qtp1472465-355] [org.gluu.oxtrust.action.JsonConfigurationAction] (JsonConfigurationAction.java:136) - Failed to load configuration from LDAP
java.lang.NullPointerException: null
at org.gluu.oxtrust.action.JsonConfigurationAction.init(JsonConfigurationAction.java:118) ~[classes/:?]
at org.gluu.oxtrust.action.JsonConfigurationAction$Proxy$_$$_WeldSubclass.init$$super(Unknown Source) ~[classes/:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
at org.jboss.weld.interceptor.proxy.TerminalAroundInvokeInvocationContext.proceedInternal(TerminalAroundInvokeInvocationContext.java:51) ~[weld-core-impl-3.1.8.Final.jar:3.1.8.Final]
at org.jboss.weld.interceptor.proxy.AroundInvokeInvocationContext.proceed(AroundInvokeInvocationContext.java:78) ~[weld-core-impl-3.1.8.Final.jar:3.1.8.Final]
at org.gluu.service.security.SecurityInterceptor.invoke(SecurityInterceptor.java:55) ~[security-extension-cdi-4.3.1.Final.jar:?]
at jdk.internal.reflect.GeneratedMethodAccessor267.invoke(Unknown Source) ~[?:?]
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
at org.jboss.weld.interceptor.reader.SimpleInterceptorInvocation$SimpleMethodInvocation.invoke(SimpleInterceptorInvocation.java:73) ~[weld-core-impl-3.1.8.Final.jar:3.1.8.Final]
at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeAroundInvoke(InterceptorMethodHandler.java:84) ~[weld-core-impl-3.1.8.Final.jar:3.1.8.Final]
at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeInterception(InterceptorMethodHandler.java:72) ~[weld-core-impl-3.1.8.Final.jar:3.1.8.Final]
at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.invoke(InterceptorMethodHandler.java:56) ~[weld-core-impl-3.1.8.Final.jar:3.1.8.Final]
at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:79) ~[weld-core-impl-3.1.8.Final.jar:3.1.8.Final]
at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:68) ~[weld-core-impl-3.1.8.Final.jar:3.1.8.Final]
at org.gluu.oxtrust.action.JsonConfigurationAction$Proxy$_$$_WeldSubclass.init(Unknown Source) ~[classes/:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
at org.apache.el.parser.AstValue.invoke(AstValue.java:246) ~[org.mortbay.jasper.apache-el-8.5.70.jar:8.5.70]
at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:266) ~[org.mortbay.jasper.apache-el-8.5.70.jar:8.5.70]
at org.jboss.weld.module.web.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40) ~[weld-web-3.1.8.Final.jar:3.1.8.Final]
at org.jboss.weld.module.web.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50) ~[weld-web-3.1.8.Final.jar:3.1.8.Final]
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:65) ~[jakarta.faces-2.3.14.jar:2.3.14]
at com.sun.faces.application.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:66) ~[jakarta.faces-2.3.14.jar:2.3.14]
at com.sun.faces.application.ActionListenerImpl.getNavigationOutcome(ActionListenerImpl.java:82) ~[jakarta.faces-2.3.14.jar:2.3.14]
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:71) ~[jakarta.faces-2.3.14.jar:2.3.14]
at javax.faces.component.UIViewAction.broadcast(UIViewAction.java:548) ~[jakarta.faces-2.3.14.jar:2.3.14]
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:847) ~[jakarta.faces-2.3.14.jar:2.3.14]
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1396) ~[jakarta.faces-2.3.14.jar:2.3.14]
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:58) ~[jakarta.faces-2.3.14.jar:2.3.14]
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:76) ~[jakarta.faces-2.3.14.jar:2.3.14]
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:177) ~[jakarta.faces-2.3.14.jar:2.3.14]
at javax.faces.webapp.FacesServlet.executeLifecyle(FacesServlet.java:707) ~[jakarta.faces-2.3.14.jar:2.3.14]
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:451) ~[jakarta.faces-2.3.14.jar:2.3.14]
at org.eclipse.jetty.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1450) ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799) ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1631) ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.websocket.server.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:228) ~[websocket-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:548) ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:600) ~[jetty-security-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1434) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501) ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1349) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:234) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.Server.handle(Server.java:516) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:400) ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:645) [jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:392) [jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277) [jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) [jetty-io-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105) [jetty-io-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) [jetty-io-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338) [jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315) [jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173) [jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131) [jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:409) [jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883) [jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034) [jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at java.lang.Thread.run(Thread.java:829) [?:?]
```