Fix for org.apache.kafka.common.KafkaException: javax.security.auth.login.LoginException: unable to find LoginModule class

common/queue/src/main/java/org/thingsboard/server/queue/kafka/TbKafkaProducerTemplate.java

@@ -55,6 +55,10 @@ public class TbKafkaProducerTemplate<T extends TbQueueMsg> implements TbQueuePro
 
     @Builder
     private TbKafkaProducerTemplate(TbKafkaSettings settings, String defaultTopic, String clientId, TbQueueAdmin admin) {
+        // Ugly workaround to fix org.apache.kafka.common.KafkaException: javax.security.auth.login.LoginException: unable to find LoginModule class
+        // details: https://stackoverflow.com/questions/57574901/kafka-java-client-classloader-doesnt-find-sasl-scram-login-class
+        Thread.currentThread().setContextClassLoader(this.getClass().getClassLoader());
+
         Properties props = settings.toProducerProps();
 
         if (!StringUtils.isEmpty(clientId)) {

rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/kafka/TbKafkaNode.java

@@ -71,6 +71,10 @@ public class TbKafkaNode implements TbNode {
 
     @Override
     public void init(TbContext ctx, TbNodeConfiguration configuration) throws TbNodeException {
+        // Ugly workaround to fix org.apache.kafka.common.KafkaException: javax.security.auth.login.LoginException: unable to find LoginModule class
+        // details: https://stackoverflow.com/questions/57574901/kafka-java-client-classloader-doesnt-find-sasl-scram-login-class
+        Thread.currentThread().setContextClassLoader(this.getClass().getClassLoader());
+
         this.config = TbNodeUtils.convert(configuration, TbKafkaNodeConfiguration.class);
         Properties properties = new Properties();
         properties.put(ProducerConfig.CLIENT_ID_CONFIG, "producer-tb-kafka-node-" + ctx.getSelfId().getId().toString() + "-" + ctx.getServiceId());