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  1. ,
    Expert tip

    You need to add httpcore to your dependencies. Try adding version 4.3 or further.

  2. ,
    Expert tip

    A few things cause this exception:
    1) Check if you have all jars and if they're in the correct path.
    2) Your classpath might be broken, you can define it in the command line with java -cp yourClassPath or at your IDE if you're using one.

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via Sonatype JIRA by Joe Tom, 1 year ago
java.lang.ClassNotFoundException: LdapRealm	at java.lang.ClassLoader.findClass(ClassLoader.java:530)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	at com.google.inject.internal.BytecodeGen$BridgeClassLoader.classicLoadClass(BytecodeGen.java:331)	at com.google.inject.internal.BytecodeGen$BridgeClassLoader.loadClass(BytecodeGen.java:325)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at org.sonatype.nexus.security.internal.RealmManagerImpl.resolveRealms(RealmManagerImpl.java:212)	at org.sonatype.nexus.security.internal.RealmManagerImpl.installRealms(RealmManagerImpl.java:190)	at org.sonatype.nexus.security.internal.RealmManagerImpl.doStart(RealmManagerImpl.java:93)	at org.sonatype.nexus.common.stateguard.StateGuardLifecycleSupport.start(StateGuardLifecycleSupport.java:67)	at org.sonatype.nexus.security.internal.RealmManagerImpl$$EnhancerByGuice$$b5f6f1e0.CGLIB$start$11()	at org.sonatype.nexus.security.internal.RealmManagerImpl$$EnhancerByGuice$$b5f6f1e0$$FastClassByGuice$$6b159d10.invoke()	at com.google.inject.internal.cglib.proxy.$MethodProxy.invokeSuper(MethodProxy.java:228)	at com.google.inject.internal.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:75)	at org.sonatype.nexus.common.stateguard.MethodInvocationAction.run(MethodInvocationAction.java:39)	at org.sonatype.nexus.common.stateguard.StateGuard$TransitionImpl.run(StateGuard.java:191)	at org.sonatype.nexus.common.stateguard.TransitionsInterceptor.invoke(TransitionsInterceptor.java:56)	at com.google.inject.internal.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:75)	at com.google.inject.internal.InterceptorStackCallback.intercept(InterceptorStackCallback.java:55)	at org.sonatype.nexus.security.internal.RealmManagerImpl$$EnhancerByGuice$$b5f6f1e0.start()	at org.sonatype.nexus.security.internal.DefaultSecuritySystem.doStart(DefaultSecuritySystem.java:115)	at org.sonatype.goodies.lifecycle.LifecycleSupport.start(LifecycleSupport.java:104)	at org.sonatype.nexus.extender.NexusLifecycleManager.startComponent(NexusLifecycleManager.java:154)	at org.sonatype.nexus.extender.NexusLifecycleManager.to(NexusLifecycleManager.java:94)	at org.sonatype.nexus.extender.NexusContextListener.contextInitialized(NexusContextListener.java:152)	at org.sonatype.nexus.bootstrap.osgi.ListenerTracker.addingService(ListenerTracker.java:47)	at org.sonatype.nexus.bootstrap.osgi.ListenerTracker.addingService(ListenerTracker.java:1)	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:941)	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:870)	at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229)	at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:901)	at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:991)	at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:839)	at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:546)	at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4557)	at org.apache.felix.framework.Felix.registerService(Felix.java:3549)	at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:348)	at org.sonatype.nexus.extender.NexusBundleExtender.start(NexusBundleExtender.java:54)	at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:697)	at org.apache.felix.framework.Felix.activateBundle(Felix.java:2226)	at org.apache.felix.framework.Felix.startBundle(Felix.java:2144)	at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1371)	at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:308)	at java.lang.Thread.run(Thread.java:745)