private static String envSafe()

in tablestore-java-mcp-server-rag/tablestore-mcp-server/src/main/java/com/alicloud/openservices/tablestore/sample/config/EnvironmentSettings.java [78:84]

• 7 lines of code
• 3 McCabe index (conditional complexity)

    private static String envSafe(String envName) {
        String env = System.getenv(envName);
        if (env == null || env.isBlank()) {
            throw new IllegalArgumentException(String.format("environment variable '%s' is not set", envName));
        }
        return env;
    }