java.lang.AbstractMethodError: org.eclipse.jetty.jaas.JAASLoginService.login(Ljava/lang/String;Ljava/lang/Object;)Lorg/eclipse/jetty/server/UserIdentity;
        at org.eclipse.jetty.security.authentication.LoginAuthenticator.login(LoginAuthenticator.java:61)[jetty-all-9.2.13.v20150730.jar:9.2.13.v20150730]
        at org.eclipse.jetty.security.authentication.BasicAuthenticator.validateRequest(BasicAuthenticator.java:92)[jetty-all-9.2.13.v20150730.jar:9.2.13.v20150730]
        at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:512)[jetty-all-9.2.13.v20150730.jar:9.2.13.v20150730]
        at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)[jetty-all-9.2.13.v20150730.jar:9.2.13.v20150730]
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)[jetty-all-9.2.13.v20150730.jar:9.2.13.v20150730]
        at org.eclipse.jetty.server.Server.handle(Server.java:499)[jetty-all-9.2.13.v20150730.jar:9.2.13.v20150730]
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)[jetty-all-9.2.13.v20150730.jar:9.2.13.v20150730]
        at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)[jetty-all-9.2.13.v20150730.jar:9.2.13.v20150730]
        at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)[jetty-all-9.2.13.v20150730.jar:9.2.13.v20150730]
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)[jetty-all-9.2.13.v20150730.jar:9.2.13.v20150730]
        at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)[jetty-all-9.2.13.v20150730.jar:9.2.13.v20150730]
        at java.lang.Thread.run(Thread.java:745)[:1.8.0_101]

LDAPLogin {
  org.apache.activemq.jaas.LDAPLoginModule required
    debug=true
    initialContextFactory=com.sun.jndi.ldap.LdapCtxFactory
    connectionURL="ldap://ldap.forumsys.com:389"
    connectionUsername="cn=read-only-admin,dc=example,dc=com"
    connectionPassword=password
    connectionProtocol=""
    authentication=simple
    userBase="dc=example,dc=com"
    userSearchMatching="(uid={0})"
    userSearchSubtree=false
    roleBase="dc=example,dc=com"
    roleName=ou
    roleSearchMatching="(ou=scientists)"
    roleSearchSubtree=false
    ;
};

<bean id="ldapLoginService" class="org.eclipse.jetty.jaas.JAASLoginService">
        <property name="name" value="LdapRealm" />
        <property name="loginModuleName" value="LDAPLogin" />
        <property name="roleClassNames" value="org.eclipse.jetty.jaas.JAASRole" />
        <property name="identityService" ref="identityService" />
    </bean>

<bean id="securityConstraint" class="org.eclipse.jetty.util.security.Constraint">
        <property name="name" value="BASIC" />
        <property name="roles" value="scientists" />

        <property name="authenticate" value="true" />
    </bean>

<bean id="securityHandler" class="org.eclipse.jetty.security.ConstraintSecurityHandler">
        <property name="loginService" ref="ldapLoginService" />
        <property name="identityService" ref="identityService" />
        <property name="realmName" value="LdapRealm" />
        <property name="authenticator">
            <bean class="org.eclipse.jetty.security.authentication.BasicAuthenticator" />
        </property>
        <property name="constraintMappings">
            <list>
                <ref bean="adminSecurityConstraintMapping" />
                <ref bean="securityConstraintMapping" />
            </list>
        </property>
        <property name="handler" ref="secHandlerCollection" />
    </bean>