common database related issues with Weblogic Server

<BEA-001112> <Test “SELECT 1 FROM DUAL” set up for pool “Test” failed with exception: “java.sql.SQLException: Io exception: Connection reset by peer: socket write error”.> Network or the DBMS is killing the connection, you need to check with the Database Admin and the network Admin.   java.lang.ClassCastException: oracle.jdbc.driver.LogicalConnection incompatible with oracle.jdbc.OracleCo

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