private void writeConfiguration(String contextName, String jaasConfigProp) throws IOException {
        List<String> lines = Arrays.asList(contextName + " { ", jaasConfigProp, "};");
        writeConfiguration(lines);
    }
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