[07/30/26, 10:30:58.772] [Connections Navigator] [ERROR] { "action": "Connect", "connection": { "name": " [WELSDEV] Masterdata", "href": "http://localhost:51348/20221610/databases/connections/definitions/%5BWELSDEV%5D%20Masterdata" }, "error": { "code": "DBTS-02010", "message": "A connection with the database could not be established", "action": "Ensure the database is operational. Check the hostname and port are correct. Ensure the correct protocol is being used. If using a private endpoint ensure it is configured correctly ", "cause": "The database may be unavailable, the host or port values may be incorrect or the private endpoint configuration may be invalid", "error": { "code": "DBTS-02010", "message": "A connection with the database could not be established", "action": "Ensure the database is operational. Check the hostname and port are correct. Ensure the correct protocol is being used. If using a private endpoint ensure it is configured correctly ", "cause": "The database may be unavailable, the host or port values may be incorrect or the private endpoint configuration may be invalid" } } } [07/30/26, 10:30:58.774] [Worksheet ] [ERROR] { "error": { "message": "Not connected" } } [07/30/26, 10:30:58.775] [DBToolsServerApp(34900)] [INFO ] 2026-07-30T08:30:58.771Z INFO Error for: POST /20221610/databases/connections/sessions/ DBTS-02010: A connection with the database could not be established DBTS-02010: A connection with the database could not be established. The database may be unavailable, the host or port values may be incorrect or the private endpoint configuration may be invalid. Ensure the database is operational. Check the hostname and port are correct. Ensure the correct protocol is being used. If using a private endpoint ensure it is configured correctly . at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.web.common.WebException.of(WebException.java:174) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.web.server.ErrorHandler.handleError(ErrorHandler.java:29) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.web.server.WebContainer.handleError(WebContainer.java:54) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.web.routes.Routes$Builder.lambda$new$0(Routes.java:155) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.actions.Actions.dispatch(Actions.java:98) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.web.routes.Routes$Resource.accept(Routes.java:715) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.web.routes.Routes$Resource.accept(Routes.java:696) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.web.routes.Routes.dispatch(Routes.java:110) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.actions.Actions$ImmutableRegistration.callIfMatches(Actions.java:351) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.actions.Actions.dispatch(Actions.java:91) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.web.server.EmbeddableComponent.dispatch(EmbeddableComponent.java:56) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.actions.Actions$ImmutableRegistration.callIfMatches(Actions.java:351) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.actions.Actions.dispatch(Actions.java:91) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.web.server.EmbeddableComponent.dispatch(EmbeddableComponent.java:56) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.web.server.EmbeddableContainer.dispatch(EmbeddableContainer.java:96) at com.oracle.dbtools.utils.jetty@26.2.0/com.oracle.dbtools.utils.jetty.JettyWebServerBridge.handle(JettyWebServerBridge.java:83) at org.eclipse.jetty.server@12.1.7/org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1224) at org.eclipse.jetty.server@12.1.7/org.eclipse.jetty.server.Handler$Wrapper.handle(Handler.java:794) at org.eclipse.jetty.server@12.1.7/org.eclipse.jetty.server.handler.EventsHandler.handle(EventsHandler.java:81) at org.eclipse.jetty.server@12.1.7/org.eclipse.jetty.server.Server.handle(Server.java:197) at org.eclipse.jetty.server@12.1.7/org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:787) at org.eclipse.jetty.server@12.1.7/org.eclipse.jetty.server.internal.HttpConnection.onFillable(HttpConnection.java:420) at org.eclipse.jetty.server@12.1.7/org.eclipse.jetty.server.internal.HttpConnection$FillableCallback.succeeded(HttpConnection.java:1809) at org.eclipse.jetty.io@12.1.7/org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105) at org.eclipse.jetty.io@12.1.7/org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:54) at org.eclipse.jetty.util@12.1.7/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:492) at org.eclipse.jetty.util@12.1.7/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.epcRunTask(AdaptiveExecutionStrategy.java:428) at org.eclipse.jetty.util@12.1.7/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:401) at org.eclipse.jetty.util@12.1.7/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:255) at org.eclipse.jetty.util@12.1.7/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:204) at org.eclipse.jetty.util@12.1.7/org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:317) at org.eclipse.jetty.util@12.1.7/org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:1009) at org.eclipse.jetty.util@12.1.7/org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1239) at org.eclipse.jetty.util@12.1.7/org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1194) at java.base/java.lang.Thread.run(Thread.java:1474) Caused by: DBTS-02010: A connection with the database could not be established. The database may be unavailable, the host or port values may be incorrect or the private endpoint configuration may be invalid. Ensure the database is operational. Check the hostname and port are correct. Ensure the correct protocol is being used. If using a private endpoint ensure it is configured correctly . at com.oracle.dbtools.server.connections@26.2.0/com.oracle.dbtools.server.connections.providers.ConnectionException.of(ConnectionException.java:24) at com.oracle.dbtools.server.connections@26.2.0/com.oracle.dbtools.server.connections.providers.oracle.OracleConnectionProviderFactory.connectionExceptionOf(OracleConnectionProviderFactory.java:33) at com.oracle.dbtools.server.connections@26.2.0/com.oracle.dbtools.server.connections.providers.spi.ConnectionProvider.connectionExceptionOf(ConnectionProvider.java:30) at com.oracle.dbtools.server.connections@26.2.0/com.oracle.dbtools.server.connections.sessions.ConnectionSession.session(ConnectionSession.java:477) at com.oracle.dbtools.server.connections@26.2.0/com.oracle.dbtools.server.connections.sessions.ConnectionSession.connection(ConnectionSession.java:463) at com.oracle.dbtools.server.connections@26.2.0/com.oracle.dbtools.server.connections.sessions.ConnectionSessions.connect(ConnectionSessions.java:114) at com.oracle.dbtools.server.connections@26.2.0/com.oracle.dbtools.server.connections.sessions.ConnectionSessions.create(ConnectionSessions.java:78) at com.oracle.dbtools.server.connections@26.2.0/com.oracle.dbtools.server.connections.sessions.ConnectionSessions.create(ConnectionSessions.java:32) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.hypermedia.Hypermedia$Collection.create(Hypermedia.java:361) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.hypermedia.Hypermedia$Collection.createItem(Hypermedia.java:280) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.actions.Actions$ImmutableRegistration.callIfMatches(Actions.java:351) at com.oracle.dbtools.utils.core@26.2.0/com.oracle.dbtools.utils.core.actions.Actions.dispatch(Actions.java:91) ... 30 more Caused by: java.sql.SQLRecoverableException: ORA-17002: I/O error: Connection reset, Authentication lapse 31 ms. https://docs.oracle.com/error-help/db/ora-17002/ at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.T4CConnection.handleLogonIOException(T4CConnection.java:2111) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:1308) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.PhysicalConnection.connect(PhysicalConnection.java:1236) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:107) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:817) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.datasource.impl.OracleDataSource.getPhysicalConnection(OracleDataSource.java:717) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.datasource.impl.OracleDataSource.getConnection(OracleDataSource.java:385) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.datasource.impl.OracleDataSource.getConnectionInternal(OracleDataSource.java:2225) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.datasource.impl.OracleDataSource.getConnection(OracleDataSource.java:358) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.datasource.impl.OracleDataSource.getConnection(OracleDataSource.java:319) at com.oracle.dbtools.server.connections@26.2.0/com.oracle.dbtools.server.connections.providers.spi.ConnectionProvider$1.get(ConnectionProvider.java:24) at com.oracle.dbtools.server.connections@26.2.0/com.oracle.dbtools.server.connections.sessions.ConnectionSession.newSession(ConnectionSession.java:434) at com.oracle.dbtools.server.connections@26.2.0/com.oracle.dbtools.server.connections.sessions.ConnectionSession.session(ConnectionSession.java:471) ... 38 more Caused by: java.io.IOException: Connection reset, Authentication lapse 31 ms. at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.T4CConnection.handleLogonIOException(T4CConnection.java:2106) ... 50 more Caused by: java.net.SocketException: Connection reset at java.base/sun.nio.ch.SocketChannelImpl.throwConnectionReset(SocketChannelImpl.java:399) at java.base/sun.nio.ch.SocketChannelImpl.blockingRead(SocketChannelImpl.java:1420) at java.base/sun.nio.ch.SocketInputStream.implRead(SocketInputStream.java:70) at java.base/sun.nio.ch.SocketInputStream.read(SocketInputStream.java:78) at com.oracle.database.jdbc@23.26.2.0.0/oracle.net.nt.TimeoutSocketChannel.doBlockedRead(TimeoutSocketChannel.java:680) at com.oracle.database.jdbc@23.26.2.0.0/oracle.net.nt.TimeoutSocketChannel.read(TimeoutSocketChannel.java:616) at com.oracle.database.jdbc@23.26.2.0.0/oracle.net.ns.NSProtocolNIO.doSocketRead(NSProtocolNIO.java:1262) at com.oracle.database.jdbc@23.26.2.0.0/oracle.net.ns.NIOPacket.readHeader(NIOPacket.java:277) at com.oracle.database.jdbc@23.26.2.0.0/oracle.net.ns.NIOPacket.readPacketFromSocketChannel(NIOPacket.java:210) at com.oracle.database.jdbc@23.26.2.0.0/oracle.net.ns.NIOPacket.readFromSocketChannel(NIOPacket.java:153) at com.oracle.database.jdbc@23.26.2.0.0/oracle.net.ns.NIOPacket.readFromSocketChannel(NIOPacket.java:126) at com.oracle.database.jdbc@23.26.2.0.0/oracle.net.ns.NIONSDataChannel.readDataFromSocketChannel(NIONSDataChannel.java:113) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.T4CMAREngineNIO.prepareForUnmarshall(T4CMAREngineNIO.java:933) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.T4CMAREngineNIO.unmarshalUB1(T4CMAREngineNIO.java:467) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:842) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:813) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:241) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.T4CTTIoauthenticate.doOSESSKEY(T4CTTIoauthenticate.java:900) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.T4CConnection.authenticateWithPassword(T4CConnection.java:2572) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.T4CConnection.authenticateUserForLogon(T4CConnection.java:2526) at com.oracle.database.jdbc@23.26.2.0.0/oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:1256) ... 49 more