It seems that these strings are hardcoded
These are displayed on UI, so need to
externalize to resource bundle.

Actually "WAITING", "OK", "FAILED" and
content of message are displayed in English.

./core.ui/src/org/netbeans/core/ui/options/general/GeneralOptionsPanel.java:

        switch (status) {
            case NOT_TESTED:
                lblTestResult.setText("");
                break;
            case WAITING:
                lblTestResult.setText("WAITING");
                break;
            case OK:
                lblTestResult.setText("OK");
                break;
            case FAILED:
                lblTestResult.setText("FAILED (" + message + ")");
                break;
        }