java.rmi.RemoteException: Unable to connect to admin-server at given host: [localhost] and port: [4848].
Please check if this server is up and running and that the host and port provided are correct.
        at org.netbeans.modules.j2ee.sun.share.management.UtilMEJB.invokeServerForResource(UtilMEJB.java:172)
        at org.netbeans.modules.j2ee.sun.share.management.UtilMEJB.updateInvoke(UtilMEJB.java:144)
        at org.netbeans.modules.j2ee.sun.share.management.ServerMEJB.invoke(ServerMEJB.java:112)
        at org.netbeans.modules.j2ee.sun.api.restricted.ResourceUtils.isResourceUpdated(ResourceUtils.java:254)
        at org.netbeans.modules.j2ee.sun.api.restricted.ResourceUtils.register(ResourceUtils.java:162)
        at org.netbeans.modules.j2ee.sun.ide.j2ee.Utils.registerIndvResources(Utils.java:242)
        at org.netbeans.modules.j2ee.sun.ide.j2ee.Utils.registerSunResources(Utils.java:221)
        at org.netbeans.modules.j2ee.sun.ide.j2ee.Utils.registerResources(Utils.java:194)
        at org.netbeans.modules.j2ee.sun.ide.dm.SunDatasourceManager.deployDatasources(SunDatasourceManager.java:88)
        at org.netbeans.modules.j2ee.deployment.impl.ServerInstance.deployDatasources(ServerInstance.java:706)
        at org.netbeans.modules.j2ee.deployment.devmodules.spi.J2eeModuleProvider.deployDatasources(J2eeModuleProvider.java:269)
        at org.netbeans.modules.j2ee.deployment.devmodules.api.Deployment.deploy(Deployment.java:186)
        at org.netbeans.modules.j2ee.deployment.devmodules.api.Deployment.deploy(Deployment.java:132)
        at org.netbeans.modules.j2ee.ant.Deploy.execute(Deploy.java:103)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
        at sun.reflect.GeneratedMethodAccessor118.invoke(GeneratedMethodAccessor118.java:0)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
        at org.apache.tools.ant.Task.perform(Task.java:348)
        at org.apache.tools.ant.Target.execute(Target.java:357)
        at org.apache.tools.ant.Target.performTasks(Target.java:385)
        at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
        at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
        at org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:278)
        at org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:497)
        at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:151)