web/project/src/org/netbeans/modules/web/project/ui/customizer/CustomizerRun.java

contextPathValidation() always returns English errors.

                message = "Context path should not contain \"//\"";
                message = "Context path should not end with \"/\"";

See the following codes, it seems that resouce bundle is defined,
however, it returns English finally. So UI is still English even in ml build.

            if (!contextPath.startsWith("/")) {
                message = NbBundle.getMessage (CustomizerRun.class,
"MSG_INVALID_CP_DOES_NOT_START_WITH_SLASH");
            } else if (contextPath.indexOf("//") >= 0) {
                message = NbBundle.getMessage (CustomizerRun.class,
"MSG_INVALID_CP_CONTAINS_DOUBLE_SLASH");
                message = "Context path should not contain \"//\"";
            } else if (contextPath.endsWith("/")) {
                message = NbBundle.getMessage (CustomizerRun.class,
"MSG_INVALID_CP_ENDS_WITH_SLASH");
                message = "Context path should not end with \"/\"";
            }