@ Nonnull public EChange clearCache ( ) { return m_aRWLock . writeLocked ( ( ) -> { EChange ret = m_aList . removeAll ( ) ; if ( ! m_aMapExt . isEmpty ( ) ) { m_aMapExt . clear ( ) ; ret = EChange . CHANGED ; } if ( ! m_aMapMimeType . isEmpty ( ) ) { m_aMapMimeType . clear ( ) ; ret = EChange . CHANGED ; } return ret ; } ) ; }
Remove all registered mime types