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    Thrown when an application is trying to use or access an object whose reference equals to null. You are probably trying to use a reference that points to no location in memory as though it were referencing an object.

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java.lang.NullPointerException: 	at java.util.Hashtable.put(Hashtable.java:393)	at oracle.sysman.emSDK.svc.conn.FGAConnectionCache.getFGAConnection(FGAConnectionCache.java:182)	at oracle.sysman.emSDK.svc.conn.ConnectionService.getConnection(ConnectionService.java:274)	at oracle.sysman.emSDK.svc.conn.ConnectionService.getConnection(ConnectionService.java:246)	at oracle.sysman.eml.creds.CredsUtil.getCreds(CredsUtil.java:1144)	at oracle.sysman.eml.creds.CredsUtil.loadCreds(CredsUtil.java:1234)	at oracle.sysman.emSDK.creds.CredsBean.loadCreds(CredsBean.java:544)	at oracle.sysman.emSDK.creds.DBCredsBean.loadCreds(DBCredsBean.java:260)	at oracle.sysman.emSDK.creds.DBComboCredsBean.loadCreds(DBComboCredsBean.java:208)	at oracle.sysman.emSDK.creds.CredsBean.initCreds(CredsBean.java:118)	at oracle.sysman.emSDK.creds.DBCredsBean.initCreds(DBCredsBean.java:91)	at oracle.sysman.db.adm.inst.ChangeStateController.getChangeStateObject(ChangeStateController.java:396)	at oracle.sysman.db.adm.inst.ChangeStateController.getBean(ChangeStateController.java:353)	at oracle.sysman.db.adm.inst.ChangeStateController.getOperationsPage(ChangeStateController.java:170)	at oracle.sysman.db.adm.inst.ChangeStateController.getDefaultPage(ChangeStateController.java:294)	at oracle.sysman.db.adm.inst.ChangeStateController.onEvent(ChangeStateController.java:448)	at oracle.sysman.db.adm.DBController.handleEvent(DBController.java:2167)	at oracle.sysman.emSDK.svlt.PageHandler.handleRequest(PageHandler.java:376)	at oracle.sysman.db.adm.DBControllerResolver.handleRequest(DBControllerResolver.java:115)	at oracle.sysman.emSDK.svlt.EMServlet.myDoGet(EMServlet.java:688)	at oracle.sysman.emSDK.svlt.EMServlet.doGet(EMServlet.java:291)	at oracle.sysman.eml.app.Console.doGet(Console.java:135)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)