2052147 - Visual Administrator hangs at 99% even if java system is up and running

Running SAP NetWeaver 7.0x release Java system
Start Visual Administrator tool(go.bat/go.sh) from path: usr/sap/<SID>/<xx>/j2ee/admin/
Find Visual Administrator tool hangs at 99% forever while Java system is up and running status. See image as below for example:

If look at Visual Administrator log(visual_administration.0.trc), could see below error throw out:

#1.5�#C0000AD41417000100000000004D55750004FF4C029B5FA8#1406601833177#
com.sap.engine.services.adminadapter.gui.ClusterNodeRetrievingThread##
com.sap.engine.services.adminadapter.gui.ClusterNodeRetrievingThread#######
Thread[Cluster node collector thread,6,main]##0#0#Error##Plain###
java.rmi.RemoteException: Error while getting cluster node subtree of :
name=ClusterNodeRepresentative,
j2eeType=com.sap.engine.services.adminadapter.impl.ClusterNodeRepresentative,
SAP_J2EEClusterNode=5235400,SAP_J2EECluster=""; nested exception is:
javax.management.ReflectionException: Cannot invoke getter or setter
(getClusterNodeMBeanSubTree) as operation unless jmx.invoke.getters property is set#

If look at Java log dev_jcontrol, could see Java system is started with JDK/JVM 1.5.

-> java path          : /opt/java1.5
-> java parameters    : -Djco.jarm=1
-> java vm version    : 1.5.0.25 jinteg:03.14.12-00:07 IA64W
-> java vm vendor     : Java HotSpot(TM) 64-Bit Server VM (Hewlett-Packard Company)

• SAP NetWeaver 7.0
• SAP enhancement package 1 for SAP NetWeaver 7.0
• SAP enhancement package 2 for SAP NetWeaver 7.0
• SAP enhancement package 3 for SAP NetWeaver 7.0

VA, freeze, frozen, not load, loading, visual administrator , KBA , BC-JAS-ADM-ADM , Administration , BC-JAS-COR , Enterprise Runtime, Core J2EE Framework , BC-JVM , SAP Java Virtual Machine , Problem