returns the version string of the used available openssl library or null if #isavailable returns false . concode_field_sep InternalLogger logger concode_elem_sep Throwable UNAVAILABILITY_CAUSE concode_elem_sep Set<String> AVAILABLE_CIPHER_SUITES concode_field_sep boolean isAvailable concode_elem_sep Set<String> availableCipherSuites concode_elem_sep void ensureAvailability concode_elem_sep boolean isError concode_elem_sep boolean isAlpnSupported concode_elem_sep Throwable unavailabilityCause concode_elem_sep int version concode_elem_sep boolean isCipherSuiteAvailable
String function ( ) { if ( isAvailable ( ) ) { return SSL . versionString ( ) ; } return null ; }