No problem when importing in "standard" connections (with password saved or typed on login). Only on wallet connections (jdbc:oracle:oci:/@tns:name).
The problem happens in Windows and Linux installations. On Windows, the exception is raised also when the import is made from command line (no possibility to test this option on Linux, because sdcli launches the GUI):
"Import failed. oracle.jdbc.proxy.oracle$1dbtools$1raptor$1proxy$1driver$1oracle$1RaptorProxyOJDBCConnection$2oracle$1jdbc$1internal$1OracleConnection$$$Proxy cannot be cast to oracle.jdbc.driver.PhysicalConnection"
The export works OK. The problem is only at import.
SQL Developer version: 22.214.171.124 (unzipped installation)
Java version: 1.8.0_51 (64 bits)
Linux: RedHat 7.1