Merge "SystemProperties.set(): more exception message detail." into main am:...

            return;

        }

    }

    // Calling SystemProperties.set() with a null value is equivalent to an

    // empty string, but this is not true for the underlying libc function.

    const char* value_c_str = value ? value->c_str() : "";

    // Explicitly clear errno so we can recognize __system_property_set()

    // failures from failed system calls (as opposed to "init rejected your

    // request" failures).

    errno = 0;

    bool success;

#if defined(__BIONIC__)

    success = !__system_property_set(key.c_str(), value ? value->c_str() : "");

    success = !__system_property_set(key.c_str(), value_c_str);

#else

    success = android::base::SetProperty(key.c_str(), value ? value->c_str() : "");

    success = android::base::SetProperty(key.c_str(), value_c_str);

#endif

    if (!success) {

        jniThrowException(env, "java/lang/RuntimeException",

                          "failed to set system property (check logcat for reason)");

        if (errno != 0) {

            jniThrowExceptionFmt(env, "java/lang/RuntimeException",

                                 "failed to set system property \"%s\" to \"%s\": %m",

                                 key.c_str(), value_c_str);

        } else {

            // Must have made init unhappy, which will have logged something,

            // but there's no API to ask for more detail.

            jniThrowExceptionFmt(env, "java/lang/RuntimeException",

                                 "failed to set system property \"%s\" to \"%s\" (check logcat for reason)",

                                 key.c_str(), value_c_str);

        }

    }

}