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yasith pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/airavata.git


The following commit(s) were added to refs/heads/master by this push:
     new f7d35fce9b add header-setting rule. use palantir java format. remove 
non-code java files.
f7d35fce9b is described below

commit f7d35fce9b639d36feb3b01adc245ca86d76dba8
Author: yasithdev <[email protected]>
AuthorDate: Fri Jun 6 18:04:23 2025 -0500

    add header-setting rule. use palantir java format. remove non-code java 
files.
---
 apache-license-header-java.txt                     |  19 ++
 apache-license-header-xml.txt                      |  18 ++
 .../apache/airavata/common/utils/ServiceUtils.java | 112 --------
 .../airavata/messaging/core/PublisherFactory.java  |  88 ------
 .../core/impl/RabbitMQProcessLaunchConsumer.java   | 307 ---------------------
 .../core/impl/RabbitMQProcessLaunchPublisher.java  |  97 -------
 .../messaging/core/impl/RabbitMQProducer.java      | 239 ----------------
 .../core/impl/RabbitMQStatusPublisher.java         | 125 ---------
 .../core/impl/RabbitMQStatusSubscriber.java        | 306 --------------------
 .../airavata/orchestrator/core/ValidatorTest.java  | 131 ---------
 .../orchestrator/core/util/SecondValidator.java    |  61 ----
 .../orchestrator/core/util/TestValidator.java      |  73 -----
 pom.xml                                            |  53 ++--
 13 files changed, 72 insertions(+), 1557 deletions(-)

diff --git a/apache-license-header-java.txt b/apache-license-header-java.txt
new file mode 100644
index 0000000000..7f36d7ff94
--- /dev/null
+++ b/apache-license-header-java.txt
@@ -0,0 +1,19 @@
+/**
+*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements. See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership. The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License. You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied. See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
diff --git a/apache-license-header-xml.txt b/apache-license-header-xml.txt
new file mode 100644
index 0000000000..176584ccd3
--- /dev/null
+++ b/apache-license-header-xml.txt
@@ -0,0 +1,18 @@
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
diff --git 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/ServiceUtils.java
 
b/modules/commons/src/main/java/org/apache/airavata/common/utils/ServiceUtils.java
deleted file mode 100644
index 77da47836e..0000000000
--- 
a/modules/commons/src/main/java/org/apache/airavata/common/utils/ServiceUtils.java
+++ /dev/null
@@ -1,112 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-///*
-// *
-// * Licensed to the Apache Software Foundation (ASF) under one
-// * or more contributor license agreements.  See the NOTICE file
-// * distributed with this work for additional information
-// * regarding copyright ownership.  The ASF licenses this file
-// * to you under the Apache License, Version 2.0 (the
-// * "License"); you may not use this file except in compliance
-// * with the License.  You may obtain a copy of the License at
-// *
-// *   http://www.apache.org/licenses/LICENSE-2.0
-// *
-// * Unless required by applicable law or agreed to in writing,
-// * software distributed under the License is distributed on an
-// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// * KIND, either express or implied.  See the License for the
-// * specific language governing permissions and limitations
-// * under the License.
-// *
-// */
-//
-//package org.apache.airavata.common.utils;
-//
-//import java.io.IOException;
-//import java.net.SocketException;
-//
-//import org.apache.airavata.common.exception.ApplicationSettingsException;
-//import org.apache.axis2.context.ConfigurationContext;
-//import org.apache.axis2.description.TransportInDescription;
-//import org.apache.axis2.util.Utils;
-//import org.slf4j.Logger;
-//import org.slf4j.LoggerFactory;
-//
-//public class ServiceUtils {
-//    private static final Logger log = 
LoggerFactory.getLogger(ServiceUtils.class);
-////    private static final String REPOSITORY_PROPERTIES = 
"airavata-server.properties";
-//    public static final String IP = "ip";
-//    public static final String PORT = "port";
-//
-//     public static String generateServiceURLFromConfigurationContext(
-//                     ConfigurationContext context, String serviceName) 
throws IOException, ApplicationSettingsException {
-////           URL url = ServiceUtils.class.getClassLoader()
-////                           .getResource(REPOSITORY_PROPERTIES);
-//              String localAddress = null;
-//        String port = null;
-////        Properties properties = new Properties();
-//        try {
-//            localAddress = ServerSettings.getSetting(IP);
-//        } catch (ApplicationSettingsException e) {
-//                     //we will ignore this exception since the properties 
file will not contain the values
-//                     //when it is ok to retrieve them from the axis2 context
-//             }
-//        if(localAddress == null){
-//             try {
-//                 localAddress = Utils.getIpAddress(context
-//                         .getAxisConfiguration());
-//             } catch (SocketException e) {
-//                 e.printStackTrace();  //To change body of catch statement 
use File | Settings | File Templates.
-//             }
-//        }
-//        String protocol="http";
-//        if(ServerSettings.isEnableHttps()){
-//            protocol="https";
-//        }
-//
-//        try {
-//            port = ServerSettings.getTomcatPort(protocol);
-//        } catch (ApplicationSettingsException e) {
-//            //we will ignore this exception since the properties file will 
not contain the values
-//            //when it is ok to retrieve them from the axis2 context
-//        }
-//        if (port == null) {
-//            TransportInDescription transportInDescription = context
-//                .getAxisConfiguration().getTransportsIn()
-//                .get(protocol);
-//            if (transportInDescription != null
-//                && transportInDescription.getParameter(PORT) != null) {
-//                port = (String) transportInDescription
-//                    .getParameter(PORT).getValue();
-//            }
-//        }
-//        localAddress = protocol+"://" + localAddress + ":" + port;
-//        localAddress = localAddress + "/"
-//             //We are not using axis2 config context to get the context root 
because it is invalid
-//            //+ context.getContextRoot() + "/"
-//             //FIXME: the context root will be correct after updating the 
web.xml 
-//            + ServerSettings.getServerContextRoot() + "/"
-//            + context.getServicePath() + "/"
-//            + serviceName;
-//        log.debug("Service Address Configured:" + localAddress);
-//        return localAddress;
-//     }
-//}
diff --git 
a/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/PublisherFactory.java
 
b/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/PublisherFactory.java
deleted file mode 100644
index 2ab6e36e39..0000000000
--- 
a/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/PublisherFactory.java
+++ /dev/null
@@ -1,88 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-///*
-// *
-// * Licensed to the Apache Software Foundation (ASF) under one
-// * or more contributor license agreements.  See the NOTICE file
-// * distributed with this work for additional information
-// * regarding copyright ownership.  The ASF licenses this file
-// * to you under the Apache License, Version 2.0 (the
-// * "License"); you may not use this file except in compliance
-// * with the License.  You may obtain a copy of the License at
-// *
-// *   http://www.apache.org/licenses/LICENSE-2.0
-// *
-// * Unless required by applicable law or agreed to in writing,
-// * software distributed under the License is distributed on an
-// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// * KIND, either express or implied.  See the License for the
-// * specific language governing permissions and limitations
-// * under the License.
-// *
-// */
-//
-//package org.apache.airavata.messaging.core;
-//
-//import org.apache.airavata.common.exception.AiravataException;
-//import org.apache.airavata.common.utils.ServerSettings;
-//import org.slf4j.Logger;
-//import org.slf4j.LoggerFactory;
-//
-//public class PublisherFactory {
-//    private static Logger log = 
LoggerFactory.getLogger(PublisherFactory.class);
-//
-//    public static Publisher createActivityPublisher() throws 
AiravataException {
-//        String activityPublisher = ServerSettings.getStatusPublisher();
-//
-//        if (activityPublisher == null) {
-//            String s = "Activity publisher is not specified";
-//            log.error(s);
-//            throw new AiravataException(s);
-//        }
-//
-//        try {
-//            Class<? extends Publisher> aPublisher = 
Class.forName(activityPublisher).asSubclass(Publisher.class);
-//            return aPublisher.newInstance();
-//        } catch (Exception e) {
-//            String msg = "Failed to load the publisher from the publisher 
class property: " + activityPublisher;
-//            log.error(msg, e);
-//            throw new AiravataException(msg, e);
-//        }
-//    }
-//
-//    public static Publisher createTaskLaunchPublisher() throws 
AiravataException {
-//        String taskLaunchPublisher = ServerSettings.getTaskLaunchPublisher();
-//
-//        if (taskLaunchPublisher == null) {
-//            String s = "Task launch publisher is not specified";
-//            log.error(s);
-//            throw new AiravataException(s);
-//        }
-//
-//        try {
-//            Class<? extends Publisher> aPublisher = 
Class.forName(taskLaunchPublisher).asSubclass(Publisher.class);
-//            return aPublisher.newInstance();
-//        } catch (Exception e) {
-//            String msg = "Failed to load the publisher from the publisher 
class property: " + taskLaunchPublisher;
-//            log.error(msg, e);
-//            throw new AiravataException(msg, e);
-//        }
-//    }
-//}
diff --git 
a/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQProcessLaunchConsumer.java
 
b/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQProcessLaunchConsumer.java
deleted file mode 100644
index 9bb26aeb48..0000000000
--- 
a/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQProcessLaunchConsumer.java
+++ /dev/null
@@ -1,307 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-///*
-// *
-// * Licensed to the Apache Software Foundation (ASF) under one
-// * or more contributor license agreements.  See the NOTICE file
-// * distributed with this work for additional information
-// * regarding copyright ownership.  The ASF licenses this file
-// * to you under the Apache License, Version 2.0 (the
-// * "License"); you may not use this file except in compliance
-// * with the License.  You may obtain a copy of the License at
-// *
-// *   http://www.apache.org/licenses/LICENSE-2.0
-// *
-// * Unless required by applicable law or agreed to in writing,
-// * software distributed under the License is distributed on an
-// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// * KIND, either express or implied.  See the License for the
-// * specific language governing permissions and limitations
-// * under the License.
-// *
-//*/
-//package org.apache.airavata.messaging.core.impl;
-//
-//import com.rabbitmq.client.*;
-//import org.apache.airavata.common.exception.AiravataException;
-//import org.apache.airavata.common.exception.ApplicationSettingsException;
-//import org.apache.airavata.common.utils.AiravataUtils;
-//import org.apache.airavata.common.utils.ServerSettings;
-//import org.apache.airavata.common.utils.ThriftUtils;
-//import org.apache.airavata.messaging.core.MessageContext;
-//import org.apache.airavata.messaging.core.MessageHandler;
-//import org.apache.airavata.messaging.core.MessagingConstants;
-//import org.apache.airavata.model.messaging.event.*;
-//import org.apache.thrift.TBase;
-//import org.apache.thrift.TException;
-//import org.slf4j.Logger;
-//import org.slf4j.LoggerFactory;
-//
-//import java.io.IOException;
-//import java.util.ArrayList;
-//import java.util.HashMap;
-//import java.util.List;
-//import java.util.Map;
-//
-//public class RabbitMQProcessLaunchConsumer {
-//    private final static Logger logger = 
LoggerFactory.getLogger(RabbitMQProcessLaunchConsumer.class);
-//    private static Logger log = 
LoggerFactory.getLogger(RabbitMQStatusSubscriber.class);
-//
-//    private String taskLaunchExchangeName;
-//    private String url;
-//    private Connection connection;
-//    private Channel channel;
-//    private Map<String, QueueDetails> queueDetailsMap = new HashMap<String, 
QueueDetails>();
-//    private boolean durableQueue;
-//    private MessageHandler messageHandler;
-//    private int prefetchCount;
-//
-//
-//    public RabbitMQProcessLaunchConsumer() throws AiravataException {
-//        try {
-//            url = 
ServerSettings.getSetting(MessagingConstants.RABBITMQ_BROKER_URL);
-//            durableQueue = 
Boolean.parseBoolean(ServerSettings.getSetting(MessagingConstants.DURABLE_QUEUE));
-//            taskLaunchExchangeName = 
ServerSettings.getSetting(MessagingConstants.RABBITMQ_TASK_LAUNCH_EXCHANGE_NAME);
-//            prefetchCount = 
Integer.valueOf(ServerSettings.getSetting(MessagingConstants.PREFETCH_COUNT, 
String.valueOf(64)));
-//            createConnection();
-//        } catch (ApplicationSettingsException e) {
-//            String message = "Failed to get read the required properties 
from airavata to initialize rabbitmq";
-//            log.error(message, e);
-//            throw new AiravataException(message, e);
-//        }
-//    }
-//
-//    public RabbitMQProcessLaunchConsumer(String brokerUrl, String 
exchangeName) throws AiravataException {
-//        this.taskLaunchExchangeName = exchangeName;
-//        this.url = brokerUrl;
-//
-//        createConnection();
-//    }
-//
-//    private void createConnection() throws AiravataException {
-//        try {
-//            ConnectionFactory connectionFactory = new ConnectionFactory();
-//            connectionFactory.setUri(url);
-//            connectionFactory.setAutomaticRecoveryEnabled(true);
-//            connection = connectionFactory.newConnection();
-//            connection.addShutdownListener(new ShutdownListener() {
-//                public void shutdownCompleted(ShutdownSignalException cause) 
{
-//                }
-//            });
-//            log.info("connected to rabbitmq: " + connection + " for " + 
taskLaunchExchangeName);
-//
-//            channel = connection.createChannel();
-//            channel.basicQos(prefetchCount);
-//
-////            channel.exchangeDeclare(taskLaunchExchangeName, "fanout");
-//
-//        } catch (Exception e) {
-//            String msg = "could not open channel for exchange " + 
taskLaunchExchangeName;
-//            log.error(msg);
-//            throw new AiravataException(msg, e);
-//        }
-//    }
-//
-//    public void reconnect() throws AiravataException{
-//        if(messageHandler!=null) {
-//            try {
-//                listen(messageHandler);
-//            } catch (AiravataException e) {
-//                String msg = "could not open channel for exchange " + 
taskLaunchExchangeName;
-//                log.error(msg);
-//                throw new AiravataException(msg, e);
-//
-//            }
-//        }
-//    }
-//    public String listen(final MessageHandler handler) throws 
AiravataException {
-//        try {
-//            messageHandler = handler;
-//            Map<String, Object> props = handler.getProperties();
-//            final Object routing = 
props.get(MessagingConstants.RABBIT_ROUTING_KEY);
-//            if (routing == null) {
-//                throw new IllegalArgumentException("The routing key must be 
present");
-//            }
-//            List<String> keys = new ArrayList<String>();
-//            if (routing instanceof List) {
-//                for (Object o : (List)routing) {
-//                    keys.add(o.toString());
-//                }
-//            } else if (routing instanceof String) {
-//                keys.add((String) routing);
-//            }
-//
-//            String queueName = (String) 
props.get(MessagingConstants.RABBIT_QUEUE);
-//            String consumerTag = (String) 
props.get(MessagingConstants.RABBIT_CONSUMER_TAG);
-//            if (queueName == null) {
-//                if (!channel.isOpen()) {
-//                    channel = connection.createChannel();
-//                    channel.basicQos(prefetchCount);
-////                    channel.exchangeDeclare(taskLaunchExchangeName, 
"fanout");
-//                }
-//                queueName = channel.queueDeclare().getQueue();
-//            } else {
-//
-//                channel.queueDeclare(queueName, durableQueue, false, false, 
null);
-//            }
-//
-//            final String id = getId(keys, queueName);
-//            if (queueDetailsMap.containsKey(id)) {
-//                throw new IllegalStateException("This subscriber is already 
defined for this Subscriber, " +
-//                        "cannot define the same subscriber twice");
-//            }
-//
-//            if (consumerTag == null) {
-//                consumerTag = "default";
-//            }
-//
-//            // bind all the routing keys
-////            for (String routingKey : keys) {
-////                channel.queueBind(queueName, taskLaunchExchangeName, 
routingKey);
-////            }
-//            // autoAck=false, we will ack after task is done
-//            channel.basicConsume(queueName, false, consumerTag, new 
QueueingConsumer(channel) {
-//                @Override
-//                public void handleDelivery(String consumerTag,
-//                                           Envelope envelope,
-//                                           AMQP.BasicProperties properties,
-//                                           byte[] body) {
-//                    Message message = new Message();
-//
-//                    try {
-//                        ThriftUtils.createThriftFromBytes(body, message);
-//                        TBase event = null;
-//                        String gatewayId = null;
-//                        long deliveryTag = envelope.getDeliveryTag();
-//                         if 
(message.getMessageType().equals(MessageType.LAUNCHPROCESS)) {
-//                                 ProcessSubmitEvent processSubmitEvent = new 
ProcessSubmitEvent();
-//                                 
ThriftUtils.createThriftFromBytes(message.getEvent(), processSubmitEvent);
-//                                 log.debug(" Message Received with message 
id '" + message.getMessageId()
-//                                                 + "' and with message type 
'" + message.getMessageType() + "'  for experimentId:" +
-//                                                 " " +
-//                                                 
processSubmitEvent.getProcessId());
-//                                 event = processSubmitEvent;
-//                                 gatewayId = 
processSubmitEvent.getGatewayId();
-//                                 MessageContext messageContext = new 
MessageContext(event, message.getMessageType(),
-//                                                 message.getMessageId(), 
gatewayId, deliveryTag);
-//                                 
messageContext.setUpdatedTime(AiravataUtils.getTime(message.getUpdatedTime()));
-//                                 
messageContext.setIsRedeliver(envelope.isRedeliver());
-//                                 handler.onMessage(messageContext);
-//                         } else {
-//                                 log.error("{} message type is not handle in 
ProcessLaunch Subscriber. Sending ack for " +
-//                                                 "delivery tag {} ", 
message.getMessageType().name(), deliveryTag);
-//                                 sendAck(deliveryTag);
-//                         }
-//                    } catch (TException e) {
-//                        String msg = "Failed to de-serialize the thrift 
message, from routing keys and queueName " + id;
-//                        log.warn(msg, e);
-//                    }
-//                }
-//
-//                @Override
-//                public void handleCancel(String consumerTag) throws 
IOException {
-//                    super.handleCancel(consumerTag);
-//                    log.info("Subscriber cancelled : " + consumerTag);
-//                }
-//            });
-//
-//            // save the name for deleting the queue
-//            queueDetailsMap.put(id, new QueueDetails(queueName, keys));
-//            return id;
-//        } catch (Exception e) {
-//            String msg = "could not open channel for exchange " + 
taskLaunchExchangeName;
-//            log.error(msg);
-//            throw new AiravataException(msg, e);
-//        }
-//    }
-//
-//    public void stopListen(final String id) throws AiravataException {
-//        QueueDetails details = queueDetailsMap.get(id);
-//        if (details != null) {
-//            try {
-//                for (String key : details.getRoutingKeys()) {
-//                    channel.queueUnbind(details.getQueueName(), 
taskLaunchExchangeName, key);
-//                }
-//            } catch (IOException e) {
-//                String msg = "could not un-bind queue: " + 
details.getQueueName() + " for exchange " + taskLaunchExchangeName;
-//                log.debug(msg);
-//            }
-//        }
-//    }
-//
-//    /**
-//     * Private class for holding some information about the consumers 
registered
-//     */
-//    private class QueueDetails {
-//        String queueName;
-//
-//        List<String> routingKeys;
-//
-//        private QueueDetails(String queueName, List<String> routingKeys) {
-//            this.queueName = queueName;
-//            this.routingKeys = routingKeys;
-//        }
-//
-//        public String getQueueName() {
-//            return queueName;
-//        }
-//
-//        public List<String> getRoutingKeys() {
-//            return routingKeys;
-//        }
-//    }
-//
-//    private String getId(List<String> routingKeys, String queueName) {
-//        String id = "";
-//        for (String key : routingKeys) {
-//            id = id + "_" + key;
-//        }
-//        return id + "_" + queueName;
-//    }
-//
-//    public void close() {
-//        if (connection != null) {
-//            try {
-//                connection.close();
-//            } catch (IOException ignore) {
-//            }
-//        }
-//    }
-//    public boolean isOpen(){
-//        if(connection!=null){
-//            return connection.isOpen();
-//        }
-//        return false;
-//    }
-//
-//    public void sendAck(long deliveryTag){
-//        try {
-//            if (channel.isOpen()){
-//                channel.basicAck(deliveryTag,false);
-//            }else {
-//                channel = connection.createChannel();
-//                channel.basicQos(prefetchCount);
-//                channel.basicAck(deliveryTag, false);
-//            }
-//        } catch (IOException e) {
-//            logger.error(e.getMessage(), e);
-//        }
-//    }
-//}
diff --git 
a/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQProcessLaunchPublisher.java
 
b/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQProcessLaunchPublisher.java
deleted file mode 100644
index fbcb54e1a5..0000000000
--- 
a/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQProcessLaunchPublisher.java
+++ /dev/null
@@ -1,97 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-///*
-// *
-// * Licensed to the Apache Software Foundation (ASF) under one
-// * or more contributor license agreements.  See the NOTICE file
-// * distributed with this work for additional information
-// * regarding copyright ownership.  The ASF licenses this file
-// * to you under the Apache License, Version 2.0 (the
-// * "License"); you may not use this file except in compliance
-// * with the License.  You may obtain a copy of the License at
-// *
-// *   http://www.apache.org/licenses/LICENSE-2.0
-// *
-// * Unless required by applicable law or agreed to in writing,
-// * software distributed under the License is distributed on an
-// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// * KIND, either express or implied.  See the License for the
-// * specific language governing permissions and limitations
-// * under the License.
-// *
-//*/
-//package org.apache.airavata.messaging.core.impl;
-//
-//import org.apache.airavata.common.exception.AiravataException;
-//import org.apache.airavata.common.exception.ApplicationSettingsException;
-//import org.apache.airavata.common.utils.ServerSettings;
-//import org.apache.airavata.common.utils.ThriftUtils;
-//import org.apache.airavata.messaging.core.MessageContext;
-//import org.apache.airavata.messaging.core.MessagingConstants;
-//import org.apache.airavata.messaging.core.Publisher;
-//import org.apache.airavata.model.messaging.event.*;
-//import org.apache.thrift.TException;
-//import org.slf4j.Logger;
-//import org.slf4j.LoggerFactory;
-//
-//public class RabbitMQProcessLaunchPublisher implements Publisher{
-//    private final static Logger log = 
LoggerFactory.getLogger(RabbitMQProcessLaunchPublisher.class);
-//    private  String launchTask;
-//
-//    private RabbitMQProducer rabbitMQProducer;
-//
-//    public RabbitMQProcessLaunchPublisher() throws Exception {
-//        String brokerUrl;
-//        try {
-//            brokerUrl = 
ServerSettings.getSetting(MessagingConstants.RABBITMQ_BROKER_URL);
-//            launchTask = ServerSettings.getRabbitmqProcessLaunchQueueName();
-//        } catch (ApplicationSettingsException e) {
-//            String message = "Failed to get read the required properties 
from airavata to initialize rabbitmq";
-//            log.error(message, e);
-//            throw new AiravataException(message, e);
-//        }
-//        rabbitMQProducer = new RabbitMQProducer(brokerUrl, null,null);
-//        rabbitMQProducer.open();
-//    }
-//
-//    public void publish(MessageContext msgCtx) throws AiravataException {
-//        try {
-//            log.info("Publishing to launch queue ...");
-//            byte[] body = 
ThriftUtils.serializeThriftObject(msgCtx.getEvent());
-//            Message message = new Message();
-//            message.setEvent(body);
-//            message.setMessageId(msgCtx.getMessageId());
-//            message.setMessageType(msgCtx.getType());
-//            message.setUpdatedTime(msgCtx.getUpdatedTime().getTime());
-//            String routingKey = launchTask;
-//            byte[] messageBody = ThriftUtils.serializeThriftObject(message);
-//            rabbitMQProducer.sendToWorkerQueue(messageBody, routingKey);
-//            log.info("Successfully published to launch queue ...");
-//        } catch (TException e) {
-//            String msg = "Error while deserializing the object";
-//            log.error(msg, e);
-//            throw new AiravataException(msg, e);
-//        } catch (Exception e) {
-//            String msg = "Error while sending to rabbitmq";
-//            log.error(msg, e);
-//            throw new AiravataException(msg, e);
-//        }
-//    }
-//}
diff --git 
a/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQProducer.java
 
b/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQProducer.java
deleted file mode 100644
index 4e0c766141..0000000000
--- 
a/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQProducer.java
+++ /dev/null
@@ -1,239 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-///*
-// *
-// * Licensed to the Apache Software Foundation (ASF) under one
-// * or more contributor license agreements.  See the NOTICE file
-// * distributed with this work for additional information
-// * regarding copyright ownership.  The ASF licenses this file
-// * to you under the Apache License, Version 2.0 (the
-// * "License"); you may not use this file except in compliance
-// * with the License.  You may obtain a copy of the License at
-// *
-// *   http://www.apache.org/licenses/LICENSE-2.0
-// *
-// * Unless required by applicable law or agreed to in writing,
-// * software distributed under the License is distributed on an
-// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// * KIND, either express or implied.  See the License for the
-// * specific language governing permissions and limitations
-// * under the License.
-// *
-// */
-//
-//package org.apache.airavata.messaging.core.impl;
-//
-//import com.rabbitmq.client.*;
-//import org.apache.airavata.common.exception.AiravataException;
-//import org.slf4j.Logger;
-//import org.slf4j.LoggerFactory;
-//
-//import java.io.IOException;
-//
-//public class RabbitMQProducer {
-//    public static final int DEFAULT_PRE_FETCH = 64;
-//
-//    private static Logger log = 
LoggerFactory.getLogger(RabbitMQProducer.class);
-//
-//    private Connection connection;
-//
-//    private Channel channel;
-//
-//    private QueueingConsumer consumer;
-//
-//    private String consumerTag;
-//
-//    private String exchangeName;
-//
-//    private int prefetchCount = DEFAULT_PRE_FETCH;
-//
-//    private boolean isReQueueOnFail = false;
-//
-//    private String url;
-//
-//    private String getExchangeType = "topic";
-//
-//
-//    public RabbitMQProducer(String url, String exchangeName,String 
getExchangeType) {
-//        this.exchangeName = exchangeName;
-//        this.url = url;
-//        this.getExchangeType = getExchangeType;
-//    }
-//
-//    public RabbitMQProducer(String url, String exchangeName) {
-//        this.exchangeName = exchangeName;
-//        this.url = url;
-//    }
-//
-//    public void setPrefetchCount(int prefetchCount) {
-//        this.prefetchCount = prefetchCount;
-//    }
-//
-//    public void setReQueueOnFail(boolean isReQueueOnFail) {
-//        this.isReQueueOnFail = isReQueueOnFail;
-//    }
-//
-//    private void reset() {
-//        consumerTag = null;
-//    }
-//
-//    private void reInitIfNecessary() throws Exception {
-//        if (consumerTag == null || consumer == null) {
-//            close();
-//            open();
-//        }
-//    }
-//
-//    public void close() {
-//        log.info("Closing channel to exchange {}", exchangeName);
-//        try {
-//            if (channel != null && channel.isOpen()) {
-//                if (consumerTag != null) {
-//                    channel.basicCancel(consumerTag);
-//                }
-//                channel.close();
-//            }
-//        } catch (Exception e) {
-//            log.debug("error closing channel and/or cancelling consumer", e);
-//        }
-//        try {
-//            log.info("closing connection to rabbitmq: " + connection);
-//            connection.close();
-//        } catch (Exception e) {
-//            log.debug("error closing connection", e);
-//        }
-//        consumer = null;
-//        consumerTag = null;
-//        channel = null;
-//        connection = null;
-//    }
-//
-//    public void open() throws AiravataException {
-//        try {
-//            connection = createConnection();
-//            channel = connection.createChannel();
-//            if (prefetchCount > 0) {
-//                log.info("setting basic.qos / prefetch count to " + 
prefetchCount + " for " + exchangeName);
-//                channel.basicQos(prefetchCount);
-//            }
-//            if(exchangeName!=null) {
-//                channel.exchangeDeclare(exchangeName, getExchangeType, 
false);
-//            }
-//            } catch (Exception e) {
-//            reset();
-//            String msg = "could not open channel for exchange " + 
exchangeName;
-//            log.error(msg);
-//            throw new AiravataException(msg, e);
-//        }
-//    }
-//
-//    public void send(byte []message, String routingKey) throws Exception {
-//        try {
-//            channel.basicPublish(exchangeName, routingKey, null, message);
-//        } catch (IOException e) {
-//            String msg = "Failed to publish message to exchange: " + 
exchangeName;
-//            log.error(msg, e);
-//            throw new Exception(msg, e);
-//        }
-//    }
-//
-//    public void sendToWorkerQueue(byte []message, String routingKey) throws 
Exception {
-//        try {
-//            channel.basicPublish( "", routingKey,
-//                    MessageProperties.PERSISTENT_TEXT_PLAIN,
-//                    message);
-//        } catch (IOException e) {
-//            String msg = "Failed to publish message to exchange: " + 
exchangeName;
-//            log.error(msg, e);
-//            throw new Exception(msg, e);
-//        }
-//    }
-//
-//    private Connection createConnection() throws IOException {
-//        try {
-//            ConnectionFactory connectionFactory = new ConnectionFactory();
-//            connectionFactory.setUri(url);
-//            connectionFactory.setAutomaticRecoveryEnabled(true);
-//            Connection connection = connectionFactory.newConnection();
-//            connection.addShutdownListener(new ShutdownListener() {
-//                public void shutdownCompleted(ShutdownSignalException cause) 
{
-//                }
-//            });
-//            log.info("connected to rabbitmq: " + connection + " for " + 
exchangeName);
-//            return connection;
-//        } catch (Exception e) {
-//            log.info("connection failed to rabbitmq: " + connection + " for 
" + exchangeName);
-//            return null;
-//        }
-//    }
-//
-//    public void ackMessage(Long msgId) throws Exception {
-//        try {
-//            channel.basicAck(msgId, false);
-//        } catch (ShutdownSignalException sse) {
-//            reset();
-//            String msg = "shutdown signal received while attempting to ack 
message";
-//            log.error(msg, sse);
-//            throw new Exception(msg, sse);
-//        } catch (Exception e) {
-//            String s = "could not ack for msgId: " + msgId;
-//            log.error(s, e);
-//            throw new Exception(s, e);
-//        }
-//    }
-//
-//    public void failMessage(Long msgId) throws Exception {
-//        if (isReQueueOnFail) {
-//            failWithRedelivery(msgId);
-//        } else {
-//            deadLetter(msgId);
-//        }
-//    }
-//
-//    public void failWithRedelivery(Long msgId) throws Exception {
-//        try {
-//            channel.basicReject(msgId, true);
-//        } catch (ShutdownSignalException sse) {
-//            reset();
-//            String msg = "shutdown signal received while attempting to fail 
with redelivery";
-//            log.error(msg, sse);
-//            throw new Exception(msg, sse);
-//        } catch (Exception e) {
-//            String msg = "could not fail with redelivery for msgId: " + 
msgId;
-//            log.error(msg, e);
-//            throw new Exception(msg, e);
-//        }
-//    }
-//
-//    public void deadLetter(Long msgId) throws Exception {
-//        try {
-//            channel.basicReject(msgId, false);
-//        } catch (ShutdownSignalException sse) {
-//            reset();
-//            String msg = "shutdown signal received while attempting to fail 
with no redelivery";
-//            log.error(msg, sse);
-//            throw new Exception(msg, sse);
-//        } catch (Exception e) {
-//            String msg = "could not fail with dead-lettering (when 
configured) for msgId: " + msgId;
-//            log.error(msg, e);
-//            throw new Exception(msg, e);
-//        }
-//    }
-//}
diff --git 
a/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQStatusPublisher.java
 
b/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQStatusPublisher.java
deleted file mode 100644
index 80e80f9920..0000000000
--- 
a/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQStatusPublisher.java
+++ /dev/null
@@ -1,125 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-///*
-// *
-// * Licensed to the Apache Software Foundation (ASF) under one
-// * or more contributor license agreements.  See the NOTICE file
-// * distributed with this work for additional information
-// * regarding copyright ownership.  The ASF licenses this file
-// * to you under the Apache License, Version 2.0 (the
-// * "License"); you may not use this file except in compliance
-// * with the License.  You may obtain a copy of the License at
-// *
-// *   http://www.apache.org/licenses/LICENSE-2.0
-// *
-// * Unless required by applicable law or agreed to in writing,
-// * software distributed under the License is distributed on an
-// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// * KIND, either express or implied.  See the License for the
-// * specific language governing permissions and limitations
-// * under the License.
-// *
-// */
-//
-//package org.apache.airavata.messaging.core.impl;
-//
-//import org.apache.airavata.common.exception.AiravataException;
-//import org.apache.airavata.common.exception.ApplicationSettingsException;
-//import org.apache.airavata.common.utils.ServerSettings;
-//import org.apache.airavata.common.utils.ThriftUtils;
-//import org.apache.airavata.messaging.core.MessageContext;
-//import org.apache.airavata.messaging.core.MessagingConstants;
-//import org.apache.airavata.messaging.core.Publisher;
-//import org.apache.airavata.model.messaging.event.*;
-//import org.apache.thrift.TException;
-//import org.slf4j.Logger;
-//import org.slf4j.LoggerFactory;
-//
-//public class RabbitMQStatusPublisher implements Publisher {
-//
-//    private static Logger log = 
LoggerFactory.getLogger(RabbitMQStatusPublisher.class);
-//
-//    private RabbitMQProducer rabbitMQProducer;
-//
-////    StatCounter statCounter = StatCounter.getInstance();
-//
-//    public RabbitMQStatusPublisher() throws AiravataException {
-//        String brokerUrl;
-//        String exchangeName;
-//        try {
-//            brokerUrl = 
ServerSettings.getSetting(MessagingConstants.RABBITMQ_BROKER_URL);
-//            exchangeName = 
ServerSettings.getSetting(MessagingConstants.RABBITMQ_STATUS_EXCHANGE_NAME);
-//        } catch (ApplicationSettingsException e) {
-//            String message = "Failed to get read the required properties 
from airavata to initialize rabbitmq";
-//            log.error(message, e);
-//            throw new AiravataException(message, e);
-//        }
-//        rabbitMQProducer = new RabbitMQProducer(brokerUrl, exchangeName);
-//        rabbitMQProducer.open();
-//    }
-//
-//    public void publish(MessageContext msgCtx) throws AiravataException {
-//        try {
-//            log.info("Publishing status to rabbitmq...");
-//            byte[] body = 
ThriftUtils.serializeThriftObject(msgCtx.getEvent());
-//            Message message = new Message();
-//            message.setEvent(body);
-//            message.setMessageId(msgCtx.getMessageId());
-//            message.setMessageType(msgCtx.getType());
-//            message.setUpdatedTime(msgCtx.getUpdatedTime().getTime());
-//            String gatewayId = msgCtx.getGatewayId();
-//            String routingKey = null;
-//            if (msgCtx.getType() == MessageType.EXPERIMENT) {
-//                ExperimentStatusChangeEvent event = 
(ExperimentStatusChangeEvent) msgCtx.getEvent();
-//                routingKey = gatewayId + "." + event.getExperimentId();
-//            } else if (msgCtx.getType() == MessageType.TASK) {
-//                TaskStatusChangeEvent event = (TaskStatusChangeEvent) 
msgCtx.getEvent();
-//                routingKey = gatewayId + "." + 
event.getTaskIdentity().getExperimentId() + "." +
-//                        event.getTaskIdentity().getProcessId() + "." + 
event.getTaskIdentity().getTaskId();
-//            } else if (msgCtx.getType() == MessageType.PROCESSOUTPUT) {
-//                TaskOutputChangeEvent event = (TaskOutputChangeEvent) 
msgCtx.getEvent();
-//                routingKey = gatewayId + "." + 
event.getTaskIdentity().getExperimentId() + "." +
-//                        event.getTaskIdentity().getProcessId() + "." + 
event.getTaskIdentity().getTaskId();
-//            } else if (msgCtx.getType() == MessageType.PROCESS) {
-//                ProcessStatusChangeEvent event = (ProcessStatusChangeEvent) 
msgCtx.getEvent();
-//                ProcessIdentifier processIdentifier = 
event.getProcessIdentity();
-//                routingKey = gatewayId + "." + 
processIdentifier.getExperimentId() + "." + processIdentifier.getProcessId();
-//            } else if (msgCtx.getType() == MessageType.JOB) {
-//                JobStatusChangeEvent event = (JobStatusChangeEvent) 
msgCtx.getEvent();
-//                JobIdentifier identity = event.getJobIdentity();
-//                routingKey = gatewayId + "." + identity.getExperimentId() + 
"." +
-//                        identity.getProcessId() + "." +
-//                        identity.getTaskId() + "." +
-//                        identity.getJobId();
-//            }
-//            byte[] messageBody = ThriftUtils.serializeThriftObject(message);
-//            rabbitMQProducer.send(messageBody, routingKey);
-////            statCounter.add(message);
-//        } catch (TException e) {
-//            String msg = "Error while deserializing the object";
-//            log.error(msg, e);
-//            throw new AiravataException(msg, e);
-//        } catch (Exception e) {
-//            String msg = "Error while sending to rabbitmq";
-//            log.error(msg, e);
-//            throw new AiravataException(msg, e);
-//        }
-//    }
-//}
diff --git 
a/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQStatusSubscriber.java
 
b/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQStatusSubscriber.java
deleted file mode 100644
index ef8b3f636d..0000000000
--- 
a/modules/messaging/core/src/main/java/org/apache/airavata/messaging/core/impl/RabbitMQStatusSubscriber.java
+++ /dev/null
@@ -1,306 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-///*
-// *
-// * Licensed to the Apache Software Foundation (ASF) under one
-// * or more contributor license agreements.  See the NOTICE file
-// * distributed with this work for additional information
-// * regarding copyright ownership.  The ASF licenses this file
-// * to you under the Apache License, Version 2.0 (the
-// * "License"); you may not use this file except in compliance
-// * with the License.  You may obtain a copy of the License at
-// *
-// *   http://www.apache.org/licenses/LICENSE-2.0
-// *
-// * Unless required by applicable law or agreed to in writing,
-// * software distributed under the License is distributed on an
-// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// * KIND, either express or implied.  See the License for the
-// * specific language governing permissions and limitations
-// * under the License.
-// *
-// */
-//
-//package org.apache.airavata.messaging.core.impl;
-//
-//
-//import com.rabbitmq.client.*;
-//import org.apache.airavata.common.exception.AiravataException;
-//import org.apache.airavata.common.exception.ApplicationSettingsException;
-//import org.apache.airavata.common.utils.AiravataUtils;
-//import org.apache.airavata.common.utils.ServerSettings;
-//import org.apache.airavata.common.utils.ThriftUtils;
-//import org.apache.airavata.messaging.core.Subscriber;
-//import org.apache.airavata.messaging.core.MessageContext;
-//import org.apache.airavata.messaging.core.MessageHandler;
-//import org.apache.airavata.messaging.core.MessagingConstants;
-//import org.apache.airavata.model.messaging.event.*;
-//import org.apache.thrift.TBase;
-//import org.apache.thrift.TException;
-//import org.slf4j.Logger;
-//import org.slf4j.LoggerFactory;
-//
-//import jakarta.annotation.Nonnull;
-//import java.io.IOException;
-//import java.util.ArrayList;
-//import java.util.HashMap;
-//import java.util.List;
-//import java.util.Map;
-//
-//public class RabbitMQStatusSubscriber implements Subscriber {
-//     public static final String EXCHANGE_TYPE = "topic";
-//     private static Logger log = 
LoggerFactory.getLogger(RabbitMQStatusSubscriber.class);
-//
-//    private String exchangeName;
-//    private String url;
-//    private Connection connection;
-//    private Channel channel;
-//    private int prefetchCount;
-//    private Map<String, QueueDetails> queueDetailsMap = new HashMap<String, 
QueueDetails>();
-//
-//    public RabbitMQStatusSubscriber() throws AiravataException {
-//        try {
-//            url = 
ServerSettings.getSetting(MessagingConstants.RABBITMQ_BROKER_URL);
-//            exchangeName = 
ServerSettings.getSetting(MessagingConstants.RABBITMQ_STATUS_EXCHANGE_NAME);
-//            prefetchCount = 
Integer.valueOf(ServerSettings.getSetting(MessagingConstants.PREFETCH_COUNT, 
String.valueOf(64)));
-//            createConnection();
-//        } catch (ApplicationSettingsException e) {
-//            String message = "Failed to get read the required properties 
from airavata to initialize rabbitmq";
-//            log.error(message, e);
-//            throw new AiravataException(message, e);
-//        }
-//    }
-//
-//    public RabbitMQStatusSubscriber(String brokerUrl, String exchangeName) 
throws AiravataException {
-//        this.exchangeName = exchangeName;
-//        this.url = brokerUrl;
-//
-//        createConnection();
-//    }
-//
-//    private void createConnection() throws AiravataException {
-//        try {
-//            ConnectionFactory connectionFactory = new ConnectionFactory();
-//            connectionFactory.setUri(url);
-//            connectionFactory.setAutomaticRecoveryEnabled(true);
-//            connection = connectionFactory.newConnection();
-//            connection.addShutdownListener(new ShutdownListener() {
-//                public void shutdownCompleted(ShutdownSignalException cause) 
{
-//                }
-//            });
-//            log.info("connected to rabbitmq: " + connection + " for " + 
exchangeName);
-//
-//            channel = connection.createChannel();
-//            channel.basicQos(prefetchCount);
-//            channel.exchangeDeclare(exchangeName, EXCHANGE_TYPE, false);
-//
-//        } catch (Exception e) {
-//            String msg = "could not open channel for exchange " + 
exchangeName;
-//            log.error(msg);
-//            throw new AiravataException(msg, e);
-//        }
-//    }
-//
-//    public String listen(final MessageHandler handler) throws 
AiravataException {
-//        try {
-//            Map<String, Object> props = handler.getProperties();
-//            final Object routing = 
props.get(MessagingConstants.RABBIT_ROUTING_KEY);
-//            if (routing == null) {
-//                throw new IllegalArgumentException("The routing key must be 
present");
-//            }
-//
-//            List<String> keys = new ArrayList<String>();
-//            if (routing instanceof List) {
-//                for (Object o : (List)routing) {
-//                    keys.add(o.toString());
-//                }
-//            } else if (routing instanceof String) {
-//                keys.add((String) routing);
-//            }
-//
-//            String queueName = (String) 
props.get(MessagingConstants.RABBIT_QUEUE);
-//            String consumerTag = (String) 
props.get(MessagingConstants.RABBIT_CONSUMER_TAG);
-//            if (queueName == null) {
-//                if (!channel.isOpen()) {
-//                    channel = connection.createChannel();
-//                    channel.exchangeDeclare(exchangeName, "topic", false);
-//                }
-//                queueName = channel.queueDeclare().getQueue();
-//            } else {
-//                channel.queueDeclare(queueName, true, false, false, null);
-//            }
-//
-//            final String id = getId(keys, queueName);
-//            if (queueDetailsMap.containsKey(id)) {
-//                throw new IllegalStateException("This subscriber is already 
defined for this Subscriber, " +
-//                        "cannot define the same subscriber twice");
-//            }
-//
-//            if (consumerTag == null) {
-//                consumerTag = "default";
-//            }
-//
-//            // bind all the routing keys
-//            for (String routingKey : keys) {
-//                channel.queueBind(queueName, exchangeName, routingKey);
-//            }
-//
-//            channel.basicConsume(queueName, true, consumerTag, new 
DefaultConsumer(channel) {
-//                @Override
-//                public void handleDelivery(String consumerTag,
-//                                           Envelope envelope,
-//                                           AMQP.BasicProperties properties,
-//                                           byte[] body) {
-//                    Message message = new Message();
-//
-//                    try {
-//                        ThriftUtils.createThriftFromBytes(body, message);
-//                        TBase event = null;
-//                        String gatewayId = null;
-//
-//                        if 
(message.getMessageType().equals(MessageType.EXPERIMENT)) {
-//                            ExperimentStatusChangeEvent 
experimentStatusChangeEvent = new ExperimentStatusChangeEvent();
-//                            
ThriftUtils.createThriftFromBytes(message.getEvent(), 
experimentStatusChangeEvent);
-//                            log.debug(" Message Received with message id '" 
+ message.getMessageId()
-//                                    + "' and with message type '" + 
message.getMessageType() + "'  with status " +
-//                                    experimentStatusChangeEvent.getState());
-//                            event = experimentStatusChangeEvent;
-//                            gatewayId = 
experimentStatusChangeEvent.getGatewayId();
-//                        } else if 
(message.getMessageType().equals(MessageType.PROCESS)) {
-//                             ProcessStatusChangeEvent 
processStatusChangeEvent = new ProcessStatusChangeEvent();
-//                             
ThriftUtils.createThriftFromBytes(message.getEvent(), processStatusChangeEvent);
-//                             log.debug("Message Recieved with message id :" 
+ message.getMessageId() + " and with " +
-//                                             "message type " + 
message.getMessageType() + " with status " +
-//                                             
processStatusChangeEvent.getState());
-//                             event = processStatusChangeEvent;
-//                             gatewayId = 
processStatusChangeEvent.getProcessIdentity().getGatewayId();
-//                        } else if 
(message.getMessageType().equals(MessageType.TASK)) {
-//                            TaskStatusChangeEvent taskStatusChangeEvent = 
new TaskStatusChangeEvent();
-//                            
ThriftUtils.createThriftFromBytes(message.getEvent(), taskStatusChangeEvent);
-//                            log.debug(" Message Received with message id '" 
+ message.getMessageId()
-//                                    + "' and with message type '" + 
message.getMessageType() + "'  with status " +
-//                                    taskStatusChangeEvent.getState());
-//                            event = taskStatusChangeEvent;
-//                            gatewayId = 
taskStatusChangeEvent.getTaskIdentity().getGatewayId();
-//                        }else if (message.getMessageType() == 
MessageType.PROCESSOUTPUT) {
-//                            TaskOutputChangeEvent taskOutputChangeEvent = 
new TaskOutputChangeEvent();
-//                            
ThriftUtils.createThriftFromBytes(message.getEvent(), taskOutputChangeEvent);
-//                            log.debug(" Message Received with message id '" 
+ message.getMessageId() + "' and with message type '" + 
message.getMessageType());
-//                            event = taskOutputChangeEvent;
-//                            gatewayId = 
taskOutputChangeEvent.getTaskIdentity().getGatewayId();
-//                        } else if 
(message.getMessageType().equals(MessageType.JOB)) {
-//                            JobStatusChangeEvent jobStatusChangeEvent = new 
JobStatusChangeEvent();
-//                            
ThriftUtils.createThriftFromBytes(message.getEvent(), jobStatusChangeEvent);
-//                            log.debug(" Message Received with message id '" 
+ message.getMessageId()
-//                                    + "' and with message type '" + 
message.getMessageType() + "'  with status " +
-//                                    jobStatusChangeEvent.getState());
-//                            event = jobStatusChangeEvent;
-//                            gatewayId = 
jobStatusChangeEvent.getJobIdentity().getGatewayId();
-//                        } else if 
(message.getMessageType().equals(MessageType.LAUNCHPROCESS)) {
-//                            TaskSubmitEvent taskSubmitEvent = new 
TaskSubmitEvent();
-//                            
ThriftUtils.createThriftFromBytes(message.getEvent(), taskSubmitEvent);
-//                            log.debug(" Message Received with message id '" 
+ message.getMessageId()
-//                                    + "' and with message type '" + 
message.getMessageType() + "'  for experimentId: " +
-//                                    taskSubmitEvent.getExperimentId() + "and 
taskId: " + taskSubmitEvent.getTaskId());
-//                            event = taskSubmitEvent;
-//                            gatewayId = taskSubmitEvent.getGatewayId();
-//                        } else if 
(message.getMessageType().equals(MessageType.TERMINATEPROCESS)) {
-//                            TaskTerminateEvent taskTerminateEvent = new 
TaskTerminateEvent();
-//                            
ThriftUtils.createThriftFromBytes(message.getEvent(), taskTerminateEvent);
-//                            log.debug(" Message Received with message id '" 
+ message.getMessageId()
-//                                    + "' and with message type '" + 
message.getMessageType() + "'  for experimentId: " +
-//                                    taskTerminateEvent.getExperimentId() + 
"and taskId: " + taskTerminateEvent.getTaskId());
-//                            event = taskTerminateEvent;
-//                            gatewayId = null;
-//                        }
-//                        MessageContext messageContext = new 
MessageContext(event, message.getMessageType(), message.getMessageId(), 
gatewayId);
-//                        
messageContext.setUpdatedTime(AiravataUtils.getTime(message.getUpdatedTime()));
-//                         
messageContext.setIsRedeliver(envelope.isRedeliver());
-//                        handler.onMessage(messageContext);
-//                    } catch (TException e) {
-//                        String msg = "Failed to de-serialize the thrift 
message, from routing keys and queueName " + id;
-//                        log.warn(msg, e);
-//                    }
-//                }
-//            });
-//            // save the name for deleting the queue
-//            queueDetailsMap.put(id, new QueueDetails(queueName, keys));
-//            return id;
-//        } catch (Exception e) {
-//            String msg = "could not open channel for exchange " + 
exchangeName;
-//            log.error(msg);
-//            throw new AiravataException(msg, e);
-//        }
-//    }
-//
-//    public void stopListen(final String id) throws AiravataException {
-//        QueueDetails details = queueDetailsMap.get(id);
-//        if (details != null) {
-//            try {
-//                for (String key : details.getRoutingKeys()) {
-//                    channel.queueUnbind(details.getQueueName(), 
exchangeName, key);
-//                }
-//                channel.queueDelete(details.getQueueName(), true, true);
-//            } catch (IOException e) {
-//                String msg = "could not un-bind queue: " + 
details.getQueueName() + " for exchange " + exchangeName;
-//                log.debug(msg);
-//            }
-//        }
-//    }
-//
-//    /**
-//     * Private class for holding some information about the consumers 
registered
-//     */
-//    private class QueueDetails {
-//        String queueName;
-//
-//        List<String> routingKeys;
-//
-//        private QueueDetails(String queueName, List<String> routingKeys) {
-//            this.queueName = queueName;
-//            this.routingKeys = routingKeys;
-//        }
-//
-//        public String getQueueName() {
-//            return queueName;
-//        }
-//
-//        public List<String> getRoutingKeys() {
-//            return routingKeys;
-//        }
-//    }
-//
-//    private String getId(List<String> routingKeys, String queueName) {
-//        String id = "";
-//        for (String key : routingKeys) {
-//            id = id + "_" + key;
-//        }
-//        return id + "_" + queueName;
-//    }
-//
-//    public void close() {
-//        if (connection != null) {
-//            try {
-//                connection.close();
-//            } catch (IOException ignore) {
-//            }
-//        }
-//    }
-//}
diff --git 
a/modules/orchestrator/orchestrator-core/src/test/java/org/apache/airavata/orchestrator/core/ValidatorTest.java
 
b/modules/orchestrator/orchestrator-core/src/test/java/org/apache/airavata/orchestrator/core/ValidatorTest.java
deleted file mode 100644
index 6bb9c61c59..0000000000
--- 
a/modules/orchestrator/orchestrator-core/src/test/java/org/apache/airavata/orchestrator/core/ValidatorTest.java
+++ /dev/null
@@ -1,131 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-///*
-// *
-// * Licensed to the Apache Software Foundation (ASF) under one
-// * or more contributor license agreements.  See the NOTICE file
-// * distributed with this work for additional information
-// * regarding copyright ownership.  The ASF licenses this file
-// * to you under the Apache License, Version 2.0 (the
-// * "License"); you may not use this file except in compliance
-// * with the License.  You may obtain a copy of the License at
-// *
-// *   http://www.apache.org/licenses/LICENSE-2.0
-// *
-// * Unless required by applicable law or agreed to in writing,
-// * software distributed under the License is distributed on an
-// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// * KIND, either express or implied.  See the License for the
-// * specific language governing permissions and limitations
-// * under the License.
-// *
-//*/
-//package org.apache.airavata.orchestrator.core;
-//
-//import org.apache.airavata.common.utils.AiravataUtils;
-//import org.apache.airavata.model.error.LaunchValidationException;
-//import org.apache.airavata.model.util.ExperimentModelUtil;
-//import org.apache.airavata.model.experiment.*;
-//import org.apache.airavata.orchestrator.core.utils.OrchestratorConstants;
-//import org.apache.airavata.orchestrator.cpi.Orchestrator;
-//import org.apache.airavata.orchestrator.cpi.impl.SimpleOrchestratorImpl;
-//import 
org.apache.airavata.registry.core.experiment.registry.jpa.impl.RegistryFactory;
-//import org.apache.airavata.registry.cpi.ParentDataType;
-//import org.apache.airavata.registry.cpi.Registry;
-//import org.junit.Assert;
-//import org.slf4j.Logger;
-//import org.slf4j.LoggerFactory;
-//import org.testng.annotations.BeforeTest;
-//import org.testng.annotations.Test;
-//
-//import java.util.ArrayList;
-//import java.util.List;
-//
-//public class ValidatorTest extends BaseOrchestratorTest {
-//    private static final Logger log = 
LoggerFactory.getLogger(NewOrchestratorTest.class);
-//
-//    private Orchestrator orchestrator;
-//    private List<TaskDetails> tasks;
-//
-//    @BeforeTest
-//    public void setUp() throws Exception {
-//        AiravataUtils.setExecutionAsServer();
-//        super.setUp();
-//        
System.setProperty(OrchestratorConstants.JOB_VALIDATOR,"org.apache.airavata.orchestrator.core.util.TestValidator,org.apache.airavata.orchestrator.core.util.SecondValidator");
-//        System.setProperty("enable.validation", "true");
-//        orchestrator = new SimpleOrchestratorImpl();
-//    }
-//
-//
-//
-//    @Test
-//    public void testValidator() throws Exception {
-//          // creating host description
-//        List<DataObjectType> exInputs = new ArrayList<DataObjectType>();
-//        DataObjectType input = new DataObjectType();
-//        input.setKey("echo_input");
-//        input.setType(DataType.STRING);
-//        input.setValue("echo_output=Hello World");
-//        exInputs.add(input);
-//
-//        List<DataObjectType> exOut = new ArrayList<DataObjectType>();
-//        DataObjectType output = new DataObjectType();
-//        output.setKey("echo_output");
-//        output.setType(DataType.STRING);
-//        output.setValue("");
-//        exOut.add(output);
-//
-//        Experiment simpleExperiment =
-//                ExperimentModelUtil.createSimpleExperiment("default", 
"admin", "echoExperiment", "SimpleEcho0", "SimpleEcho0", exInputs);
-//        simpleExperiment.setExperimentOutputs(exOut);
-//
-//        WorkflowNodeDetails test = 
ExperimentModelUtil.createWorkflowNode("test", null);
-//        ComputationalResourceScheduling scheduling = 
ExperimentModelUtil.createComputationResourceScheduling("localhost", 1, 1, 1, 
"normal", 0, 0, 1, "sds128");
-//        scheduling.setResourceHostId("localhost");
-//        UserConfigurationData userConfigurationData = new 
UserConfigurationData();
-//        userConfigurationData.setAiravataAutoSchedule(false);
-//        userConfigurationData.setOverrideManualScheduledParams(false);
-//        userConfigurationData.setComputationalResourceScheduling(scheduling);
-//        simpleExperiment.setUserConfigurationData(userConfigurationData);
-//
-//        Registry defaultRegistry = RegistryFactory.getDefaultExpCatalog();
-//        String experimentId = 
(String)defaultRegistry.add(ParentDataType.EXPERIMENT, simpleExperiment);
-//
-//        simpleExperiment.setExperimentID(experimentId);
-//        tasks = orchestrator.createTasks(experimentId);
-//
-//        Assert.assertTrue(orchestrator.validateExperiment(simpleExperiment, 
test, tasks.get(0)).isValidationState());
-//
-//        simpleExperiment.setExperimentID(null);
-//
-//        try {
-//            orchestrator.validateExperiment(simpleExperiment, test, 
tasks.get(0)).isValidationState();
-//        }catch(LaunchValidationException e){
-//            Assert.assertTrue(true);
-//        }
-//        tasks.get(0).setTaskID(null);
-//        try {
-//            orchestrator.validateExperiment(simpleExperiment, test, 
tasks.get(0));
-//        }catch (LaunchValidationException e){
-//            Assert.assertTrue(true);
-//        }
-//    }
-//
-//}
diff --git 
a/modules/orchestrator/orchestrator-core/src/test/java/org/apache/airavata/orchestrator/core/util/SecondValidator.java
 
b/modules/orchestrator/orchestrator-core/src/test/java/org/apache/airavata/orchestrator/core/util/SecondValidator.java
deleted file mode 100644
index 2bcd0fd303..0000000000
--- 
a/modules/orchestrator/orchestrator-core/src/test/java/org/apache/airavata/orchestrator/core/util/SecondValidator.java
+++ /dev/null
@@ -1,61 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-///*
-// *
-// * Licensed to the Apache Software Foundation (ASF) under one
-// * or more contributor license agreements.  See the NOTICE file
-// * distributed with this work for additional information
-// * regarding copyright ownership.  The ASF licenses this file
-// * to you under the Apache License, Version 2.0 (the
-// * "License"); you may not use this file except in compliance
-// * with the License.  You may obtain a copy of the License at
-// *
-// *   http://www.apache.org/licenses/LICENSE-2.0
-// *
-// * Unless required by applicable law or agreed to in writing,
-// * software distributed under the License is distributed on an
-// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// * KIND, either express or implied.  See the License for the
-// * specific language governing permissions and limitations
-// * under the License.
-// *
-//*/
-//package org.apache.airavata.orchestrator.core.util;
-//
-//import org.apache.airavata.model.error.ValidationResults;
-//import org.apache.airavata.model.error.ValidatorResult;
-//import org.apache.airavata.model.experiment.ExperimentModel;
-//import org.apache.airavata.model.experiment.TaskDetails;
-//import org.apache.airavata.model.experiment.WorkflowNodeDetails;
-//import org.apache.airavata.orchestrator.core.validator.JobMetadataValidator;
-//
-//public class SecondValidator implements JobMetadataValidator {
-//    public ValidationResults validate(Experiment experiment, 
WorkflowNodeDetails workflowNodeDetail, TaskDetails taskID) {
-//        ValidationResults validationResults = new ValidationResults();
-//        validationResults.setValidationState(true);
-//        if(taskID.getTaskID() == null) {
-//            ValidatorResult validatorResult = new ValidatorResult(false);
-//            validatorResult.setErrorDetails("No taskID is set, so Validation 
failed");
-//            validationResults.addToValidationResultList(validatorResult);
-//            validationResults.setValidationState(false);
-//        }
-//        return validationResults;
-//    }
-//}
diff --git 
a/modules/orchestrator/orchestrator-core/src/test/java/org/apache/airavata/orchestrator/core/util/TestValidator.java
 
b/modules/orchestrator/orchestrator-core/src/test/java/org/apache/airavata/orchestrator/core/util/TestValidator.java
deleted file mode 100644
index e6fe52eed2..0000000000
--- 
a/modules/orchestrator/orchestrator-core/src/test/java/org/apache/airavata/orchestrator/core/util/TestValidator.java
+++ /dev/null
@@ -1,73 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-///*
-// *
-// * Licensed to the Apache Software Foundation (ASF) under one
-// * or more contributor license agreements.  See the NOTICE file
-// * distributed with this work for additional information
-// * regarding copyright ownership.  The ASF licenses this file
-// * to you under the Apache License, Version 2.0 (the
-// * "License"); you may not use this file except in compliance
-// * with the License.  You may obtain a copy of the License at
-// *
-// *   http://www.apache.org/licenses/LICENSE-2.0
-// *
-// * Unless required by applicable law or agreed to in writing,
-// * software distributed under the License is distributed on an
-// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// * KIND, either express or implied.  See the License for the
-// * specific language governing permissions and limitations
-// * under the License.
-// *
-//*/
-//package org.apache.airavata.orchestrator.core.util;
-//
-//import org.apache.airavata.model.error.ValidationResults;
-//import org.apache.airavata.model.error.ValidatorResult;
-//import org.apache.airavata.model.experiment.ExperimentModel;
-//import org.apache.airavata.model.experiment.TaskDetails;
-//import org.apache.airavata.model.experiment.WorkflowNodeDetails;
-//import org.apache.airavata.orchestrator.core.exception.OrchestratorException;
-//import org.apache.airavata.orchestrator.core.validator.JobMetadataValidator;
-//import org.slf4j.Logger;
-//import org.slf4j.LoggerFactory;
-//
-//public class TestValidator implements JobMetadataValidator {
-//    private final static Logger logger = 
LoggerFactory.getLogger(TestValidator.class);
-//
-//    public ValidationResults validate(Experiment experiment, 
WorkflowNodeDetails workflowNodeDetail, TaskDetails taskID) {
-//        ValidationResults validationResults = new ValidationResults();
-//        validationResults.setValidationState(true);
-//        if (experiment.getProjectID() == null) {
-//            logger.error("Project ID is not set");
-//            ValidatorResult validatorResult = new ValidatorResult(false);
-//            validatorResult.setErrorDetails("Project ID is not set");
-//            validationResults.addToValidationResultList(validatorResult);
-//            validationResults.setValidationState(false);
-//        } else if (experiment.getExperimentID() == null) {
-//            logger.error("This experiment is wrong, no experimentID set");
-//            ValidatorResult validatorResult = new ValidatorResult(false);
-//            validatorResult.setErrorDetails("This experiment is wrong, no 
experimentID set");
-//            validationResults.addToValidationResultList(validatorResult);
-//            validationResults.setValidationState(false);
-//        }
-//        return validationResults;
-//    }
-//}
diff --git a/pom.xml b/pom.xml
index cba1e4ba93..09892cc976 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,24 +1,20 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
 
+http://www.apache.org/licenses/LICENSE-2.0
 
-    Licensed to the Apache Software Foundation (ASF) under one
-    or more contributor license agreements.  See the NOTICE file
-    distributed with this work for additional information
-    regarding copyright ownership.  The ASF licenses this file
-    to you under the Apache License, Version 2.0 (the
-    "License"); you may not use this file except in compliance
-    with the License.  You may obtain a copy of the License at
-
-      http://www.apache.org/licenses/LICENSE-2.0
-
-    Unless required by applicable law or agreed to in writing,
-    software distributed under the License is distributed on an
-    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-    KIND, either express or implied.  See the License for the
-    specific language governing permissions and limitations
-    under the License.
-
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0"; 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/maven-v4_0_0.xsd";>
@@ -408,6 +404,27 @@
                 </executions>
             </plugin>
 
+            <!-- for consistent code styling -->
+            <plugin>
+                <groupId>com.diffplug.spotless</groupId>
+                <artifactId>spotless-maven-plugin</artifactId>
+                <version>2.44.5</version>
+                <configuration>
+                    <java>
+                        <palantirJavaFormat/>
+                        <licenseHeader>
+                            <file>apache-license-header-java.txt</file>
+                        </licenseHeader>
+                    </java>
+                    <pom>
+                        <licenseHeader>
+                            <file>apache-license-header-xml.txt</file>
+                            <delimiter><![CDATA[<project]]></delimiter>
+                        </licenseHeader>
+                    </pom>
+                </configuration>
+            </plugin>
+
         </plugins>
     </build>
 

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