SQL Developer: "network adapter could not establish the connection"

Can some one help. I dont seem to know wat the problem is.
PL/SQL connection is ok.
I use userneme; scott
password: tiger
but my SQL Developer will not coonect
showing above message

Hi;
For your issue i suggest close your thread here as changing thread status to answered and move it to Oracle Discussion Forums » Application Development in PL/SQL » SQL Developer (Not for general SQL/PLSQL questions) which is seeded dedicated forum site.
Regard
Helios

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         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 EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:803)
         at java.lang.Thread.run(Thread.java:534)
    ## Detail 0 ##
    java.sql.SQLException: Io exception: 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:3675)
         at oracle.jdbc.ttc7.TTC7Protocol.logon(TTC7Protocol.java:352)
         at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:365)
         at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:536)
         at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:328)
         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:664)
         at oracle.apps.fnd.security.AppsConnectionManager.getGwyuidConn(AppsConnectionManager.java:736)
         at oracle.apps.fnd.security.AppsConnectionManager.makeGuestConnection(AppsConnectionManager.java:575)
         at oracle.apps.fnd.security.DBConnObj.<init>(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 java.lang.reflect.Constructor.newInstance(Constructor.java:274)
         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:232)
         at oracle.apps.fnd.common.Context.borrowConnection(Context.java:1773)
         at oracle.apps.fnd.common.AppsContext.getPrivateConnectionFinal(AppsContext.java:2460)
         at oracle.apps.fnd.common.AppsContext.getPrivateConnection(AppsContext.java:2398)
         at oracle.apps.fnd.common.AppsContext.getJDBCConnection(AppsContext.java:2257)
         at oracle.apps.fnd.common.AppsContext.getJDBCConnection(AppsContext.java:2072)
         at oracle.apps.fnd.common.AppsContext.getJDBCConnection(AppsContext.java:1976)
         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:873)
         at oracle.apps.fnd.common.AppsContext.initializeContext(AppsContext.java:858)
         at oracle.apps.fnd.common.AppsContext.initializeContext(AppsContext.java:827)
         at oracle.apps.fnd.common.AppsContext.<init>(AppsContext.java:686)
         at oracle.apps.fnd.common.WebAppsContext.<init>(WebAppsContext.java:846)
         at oracle.apps.fnd.framework.server.OAUtility.getWebAppsContext(OAUtility.java:351)
         at oracle.apps.fnd.framework.CreateIcxSession.getEncryptedSessId(CreateIcxSession.java:144)
         at oracle.apps.fnd.framework.CreateIcxSession.createSession(CreateIcxSession.java:80)
         at test_fwktutorial._jspService(test_fwktutorial.jsp:45)
         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 EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:803)
         at java.lang.Thread.run(Thread.java:534)
    oracle.apps.fnd.framework.OAException: Application: FND, Message Name: FND_GENERIC_MESSAGE. Tokens: MESSAGE = java.sql.SQLException: Io exception: The Network Adapter could not establish the connection; (Could not lookup message because there is no database connection)
         at oracle.apps.fnd.framework.OAException.wrapperException(OAException.java:888)
         at oracle.apps.fnd.framework.OAException.wrapperException(OAException.java:862)
         at oracle.apps.fnd.framework.server.OAExceptionUtils.processAOLJErrorStack(OAExceptionUtils.java:980)
         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 test_fwktutorial._jspService(test_fwktutorial.jsp:45)
         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 EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:803)
         at java.lang.Thread.run(Thread.java:534)
    ## Detail 0 ##
    java.sql.SQLException: Io exception: 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:3675)
         at oracle.jdbc.ttc7.TTC7Protocol.logon(TTC7Protocol.java:352)
         at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:365)
         at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:536)
         at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:328)
         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:664)
         at oracle.apps.fnd.security.AppsConnectionManager.getGwyuidConn(AppsConnectionManager.java:736)
         at oracle.apps.fnd.security.AppsConnectionManager.makeGuestConnection(AppsConnectionManager.java:575)
         at oracle.apps.fnd.security.DBConnObj.<init>(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 java.lang.reflect.Constructor.newInstance(Constructor.java:274)
         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:232)
         at oracle.apps.fnd.common.Context.borrowConnection(Context.java:1773)
         at oracle.apps.fnd.common.AppsContext.getPrivateConnectionFinal(AppsContext.java:2460)
         at oracle.apps.fnd.common.AppsContext.getPrivateConnection(AppsContext.java:2398)
         at oracle.apps.fnd.common.AppsContext.getJDBCConnection(AppsContext.java:2257)
         at oracle.apps.fnd.common.AppsContext.getJDBCConnection(AppsContext.java:2072)
         at oracle.apps.fnd.common.AppsContext.getJDBCConnection(AppsContext.java:1976)
         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:873)
         at oracle.apps.fnd.common.AppsContext.initializeContext(AppsContext.java:858)
         at oracle.apps.fnd.common.AppsContext.initializeContext(AppsContext.java:827)
         at oracle.apps.fnd.common.AppsContext.<init>(AppsContext.java:686)
         at oracle.apps.fnd.common.WebAppsContext.<init>(WebAppsContext.java:846)
         at oracle.apps.fnd.framework.server.OAUtility.getWebAppsContext(OAUtility.java:351)
         at oracle.apps.fnd.framework.CreateIcxSession.getEncryptedSessId(CreateIcxSession.java:144)
         at oracle.apps.fnd.framework.CreateIcxSession.createSession(CreateIcxSession.java:80)
         at test_fwktutorial._jspService(test_fwktutorial.jsp:45)
         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 EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:803)
         at java.lang.Thread.run(Thread.java:534)
    I have checked all the setups. Its as per document.
    I will appreciate any help on this.
    Thanks & Regards
    Samir

    Hi,
    according to the message, the database is not accessible. This can be because the database is down or the database connect information points e.g. to a wrong port
    Frank

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