@BeforeEach
    public void setUp() throws IOException {
        jaasConfigFile = TestUtils.tempFile("jaas", ".conf");
        System.setProperty(JaasUtils.JAVA_LOGIN_CONFIG_PARAM, jaasConfigFile.toString());
        Configuration.setConfiguration(null);
    }
Tests parsing of {@link SaslConfigs#SASL_JAAS_CONFIG} property and verifies that the format
and parsing are consistent with JAAS configuration files loaded by the JRE.
clients/src/test/java/org/apache/kafka/common/security/JaasContextTest.java