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via Stack Overflow by Alberto
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Cannot create PoolableConnectionFactory (ORA-28040: No matching authentication protocol )
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Cannot create PoolableConnectionFactory (Login failed for user 'DOMAIN\CURRENT_HOST_NAME$'.)
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Can not create PoolableConnectionFactory (Connection refused. Verify that the hostname and port are correct and that the postmaster is accepting TCP / IP connections.)
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Cannot create PoolableConnectionFactory (Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.)
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Cannot create PoolableConnectionFactory (I/O Error: DB server closed connection.)
via Stack Overflow by changed
, 2 years ago
Cannot create PoolableConnectionFactory (Login failed for user ''. The user is not associated with a trusted SQL Server connection.)
java.sql.SQLException: ORA-28040: No matching authentication protocol	at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)	at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331)	at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:283)	at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:278)	at oracle.jdbc.driver.T4CTTIoauthenticate.receiveOsesskey(T4CTTIoauthenticate.java:294)	at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:357)	at oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:441)	at oracle.jdbc.driver.T4CConnection.(T4CConnection.java:165)	at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)	at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)	at org.apache.tomcat.dbcp.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)	at org.apache.tomcat.dbcp.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:582)	at org.apache.tomcat.dbcp.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:1556)	at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1545)	at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1388)	at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)	at tomcattest.TestIt.doPost(TestIt.java:48)	at tomcattest.TestIt.doGet(TestIt.java:27)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)	at java.lang.Thread.run(Thread.java:662)