Weblogic Admin Server fails to start with error : JPS-02592: Failed to push ldap config data to libOvd for service instance "idstore.ldap" in JPS context "default"

####<Jun 13, 2019 2:00:27,198 PM EDT> <Critical> <WebLogicServer> <> <AdminServer> <main> <<WLS Kernel>> <> <416eb640-d049-4281-bbf5-19bd52a76fba-00000003> <1560448827198> <[severity-value: 4] [rid: 0] [partition-id: 0] [partition-name: DOMAIN] > <BEA-000362> <Server failed. Reason:

There are 1 nested errors:

oracle.security.jps.JpsException: JPS-02592: Failed to push ldap config data to libOvd for service instance "idstore.ldap" in JPS context "default", cause: org.xml.sax.SAXException: Error Parsing at line #2: 1.
org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 1; <Line 2, Column 1>: XML-20108: (Fatal Error) Start of root element expected.
        at oracle.security.jps.internal.config.OpssCommonStartup.start(OpssCommonStartup.java:228)
        at oracle.security.jps.wls.JpsWlsStartup.start(JpsWlsStartup.java:105)
        at oracle.security.jps.JpsStartup.startWithRetry(JpsStartup.java:287)
        at oracle.security.jps.JpsStartup.start(JpsStartup.java:252)
        at oracle.security.jps.wls.JpsDefaultService.start(JpsDefaultService.java:92)
        at weblogic.server.AbstractServerService.postConstruct(AbstractServerService.java:76)
        at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.glassfish.hk2.utilities.reflection.ReflectionHelper.invoke(ReflectionHelper.java:1287)
        at org.jvnet.hk2.internal.ClazzCreator.postConstructMe(ClazzCreator.java:333)
        at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:375)
        at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:487)
        at org.glassfish.hk2.runlevel.internal.AsyncRunLevelContext.findOrCreate(AsyncRunLevelContext.java:305)
        at org.glassfish.hk2.runlevel.RunLevelContext.findOrCreate(RunLevelContext.java:85)
        at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2126)
        at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:116)
        at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:90)
        at org.glassfish.hk2.runlevel.internal.CurrentTaskFuture$QueueRunner.oneJob(CurrentTaskFuture.java:1237)
        at org.glassfish.hk2.runlevel.internal.CurrentTaskFuture$QueueRunner.run(CurrentTaskFuture.java:1168)
        at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:678)
        at weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:352)
        at weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:337)
        at weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:57)
        at weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)
        at weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:652)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:420)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:360)
Caused by: oracle.security.jps.service.idstore.IdentityStoreException: JPS-02592: Failed to push ldap config data to libOvd for service instance "idstore.ldap" in JPS context "default", cause: org.xml.sax.SAXException: Error Parsing at line #2: 1.


CAUSE:
======
Corruption of the  adapters.os_xml

File was empty.

SOLUTION:
=========

1) Take a backup of $DOMAIN_HOME/config/fmwconfig/ovd/default/adapters.os_xml

2) Delete corrupted adapters.os_xml

3) Copy adapters.os_xml from $MW_HOME/oracle_common/modules/oracle.ovd/templates/ to $DOMAIN_HOME/config/fmwconfig/ovd/default/

4) Restart the server