java.sql.SQLException: Io 8: The Network Adapter could not establish the connection

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Io 8: The Network Adapter could not establish the connection
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Io exception: Connection refused(DESCRIPTION=(TMP=)(VSNNUM=153093632)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))))
java.sql.SQLException: Io 8: The Network Adapter could not establish the connection
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:334)
at oracle.jdbc.ttc7.TTC7Protocol.handleIOException(TTC7Protocol.java:3678)
at oracle.jdbc.ttc7.TTC7Protocol.logon(TTC7Protocol.java:352)
at oracle.jdbc.driver.OracleConnection.(OracleConnection.java:371)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:551)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:351)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:140)
at oracle.apps.fnd.security.ConnectionManager.dbConnect(ConnectionManager.java:1194)
at oracle.apps.fnd.security.ConnectionManager.dbConnect(ConnectionManager.java:1121)
at oracle.apps.fnd.security.AppsConnectionManager.makeGwyuidConn(AppsConnectionManager.java:704)
at oracle.apps.fnd.security.AppsConnectionManager.getGwyuidConn(AppsConnectionManager.java:776)
at oracle.apps.fnd.security.AppsConnectionManager.makeGuestConnection(AppsConnectionManager.java:613)
at oracle.apps.fnd.security.DBConnObj.(DBConnObj.java:240)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at oracle.apps.fnd.common.Pool.createObject(Pool.java:1187)
at oracle.apps.fnd.common.Pool.borrowObject(Pool.java:946)
at oracle.apps.fnd.security.DBConnObjPool.borrowObject(DBConnObjPool.java:703)
at oracle.apps.fnd.security.AppsConnectionManager.borrowConnection(AppsConnectionManager.java:255)
at oracle.apps.fnd.common.Context.borrowConnection(Context.java:1773)
at oracle.apps.fnd.common.AppsContext.getPrivateConnectionFinal(AppsContext.java:2499)
at oracle.apps.fnd.common.AppsContext.getPrivateConnection(AppsContext.java:2437)
at oracle.apps.fnd.common.AppsContext.getJDBCConnection(AppsContext.java:2296)
at oracle.apps.fnd.common.AppsContext.getJDBCConnection(AppsContext.java:2111)
at oracle.apps.fnd.common.AppsContext.getJDBCConnection(AppsContext.java:2015)
at oracle.apps.fnd.profiles.Profiles.getConnection(Profiles.java:2494)
at oracle.apps.fnd.profiles.Profiles.getProfileOption(Profiles.java:1304)
at oracle.apps.fnd.profiles.Profiles.getProfile(Profiles.java:384)
at oracle.apps.fnd.profiles.ExtendedProfileStore.getSpecificProfileFromDB(ExtendedProfileStore.java:210)
at oracle.apps.fnd.profiles.ExtendedProfileStore.getSpecificProfile(ExtendedProfileStore.java:169)
at oracle.apps.fnd.profiles.ExtendedProfileStore.getProfile(ExtendedProfileStore.java:148)
at oracle.apps.fnd.common.logging.DebugEventManager.configureUsingDatabaseValues(DebugEventManager.java:1147)
at oracle.apps.fnd.common.logging.DebugEventManager.configureLogging(DebugEventManager.java:1008)
at oracle.apps.fnd.common.logging.DebugEventManager.internalReinit(DebugEventManager.java:977)
at oracle.apps.fnd.common.logging.DebugEventManager.reInitialize(DebugEventManager.java:944)
at oracle.apps.fnd.common.logging.DebugEventManager.reInitialize(DebugEventManager.java:931)
at oracle.apps.fnd.common.AppsLog.reInitialize(AppsLog.java:570)
at oracle.apps.fnd.common.AppsContext.initLog(AppsContext.java:894)
at oracle.apps.fnd.common.AppsContext.initializeContext(AppsContext.java:879)
at oracle.apps.fnd.common.AppsContext.initializeContext(AppsContext.java:848)
at oracle.apps.fnd.common.AppsContext.(AppsContext.java:707)
at oracle.apps.fnd.common.WebAppsContext.(WebAppsContext.java:940)
at oracle.apps.fnd.framework.server.OAUtility.getWebAppsContext(OAUtility.java:352)
at oracle.apps.fnd.framework.CreateIcxSession.getEncryptedSessId(CreateIcxSession.java:144)
at oracle.apps.fnd.framework.CreateIcxSession.createSession(CreateIcxSession.java:80)
at undefined.test_fwktutorial._jspService(test_fwktutorial.jsp:40)
at oracle.jsp.runtime.HttpJsp.service(HttpJsp.java:139)
at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:317)
at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:465)
at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:379)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:727)
at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:306)
at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:767)
at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:259)
at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:106)
at java.lang.Thread.run(Thread.java:534)

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