A leakage-current detection and interruption apparatus includes a plug adapted to receive an alternating current voltage, pairs of separable contacts adapted to receive the AC voltage from the plug, and an operating mechanism adapted to open and close the contacts. The JDBC subsystem can include a profiling component and a statistics monitoring component that maintain profile and statistics information concerning components of JDBC subsystem, such as the connection pool and prepared statement cache. This is realized by coupling a predefined amount of radiation guided by the fiber per length unit out of the fiber core into the cladding and jacket. Hybrid maize seed, plant or plant part produced by crossing the inbred line PH907 or an introgressed trait conversion of PH907 with another maize line.