java.sql.SQLException

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    • java.sql.SQLException: Listener refused the connection with the following error: ORA-12516, TNS:listener could not find available handler with matching protocol stack at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:489)[ojdbc6-11.2.0.4.jar:11.2.0.4.0] at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:553)[ojdbc6-11.2.0.4.jar:11.2.0.4.0] at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:254)[ojdbc6-11.2.0.4.jar:11.2.0.4.0] at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)[ojdbc6-11.2.0.4.jar:11.2.0.4.0] at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528)[ojdbc6-11.2.0.4.jar:11.2.0.4.0] at oracle.jdbc.pool.OracleDataSource.getPhysicalConnection(OracleDataSource.java:280)[ojdbc6-11.2.0.4.jar:11.2.0.4.0] at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:207)[ojdbc6-11.2.0.4.jar:11.2.0.4.0] at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:157)[ojdbc6-11.2.0.4.jar:11.2.0.4.0] at com.vladmihalcea.book.high_performance_java_persistence.jdbc.connection.OracleConnectionCallTest.test(OracleConnectionCallTest.java:57)[test-classes/:na]

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