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Mule ESB 3.4.2 Release Notes

January 6, 2014

MuleSoft is pleased to announce the release of Mule ESB 3.4.2 which offers fixes for issues and improvements to the core Mule ESB product and the Mule Management Console.

These release notes apply to the core changes we have applied in 3.4.2 runtime, and to the Mule Management Console, both of which are available to Enterprise customers. Access one of the following resources to download Mule ESB 3.4.2 Enterprise runtime and take advantage of an improved and hardened Mule ESB.

Document Revision History

January 6, 2014, v1.0 Initial Publication

Current Release Version

Enterprise Community

ESB

Version: 3.4.2
Build: db375e49

n/a

Management Console
(non-MS SQL server enabled)

Version: 3.4.2
Build: 5ccc2ab60c

n/a

Management Console
(MS SQL server enabled)

Version: 3.4.2
Build: 46b24d0146

n/a

Noteworthy

  • Management Console Installation or Upgrade: Depending on your requirements and current instance of MMC, you require one of two .war files to install or upgrade MMC. 

  • Management Console improvement: We have made it easier to persist state and tracking data to an external database, requiring only a couple of property files and minor XML configurations in almost all cases.

  • Management Console improvement: Out of the box, MMC now includes the ability to encrypt passwords in order to connect to the state and tracking databases and to bind to LDAP.

  • Management Console improvement: We have greatly improved both the performance of business events and the functionality of queries.

Hardware and Software System Requirements

For most use cases, Mule ESB 3.4.2 does not change the hardware and software system requirements established by Mule ESB 3.4.1. Contact MuleSoft with any questions you may have about system requirements.

Important Notes and Known Issues in this Release

This list covers some of the known issues with Mule Management Console 3.4.2. Please read this list before reporting any issues you may have spotted. (There are no known issues with Mule ESB 3.4.2 Enterprise Runtime.)

Mule Management Console

Adding a cluster to a group

If you place a cluster in a server group, you may experience issues with deployments which target the group instead of the cluster directly. 
Workaround: Use the cluster as one of the direct targets of your deployments. If you experience issues, check the apps directory in your Mule server(s) to confirm functionality.

Adding a server to a group

If you add a server to a group via the server details panel (using the settings tab and editing the server info), deployments targeting the group are not transferred to the newly added server.
Workaround: Use the Add to Group button in the server list grid. 

Error Messages

Some error messages in the MMC main window may contain a "See More" link which, when clicked, displays a new window containing only the text null.
Workaround: There is no applicable workaround, but you can safely ignore this issue. 

Fixed in this Release

Mule ESB

View resolved issues

Issue Description

EE-2916

java.io.NotSerializableException at org.mule.config.spring.parsers.assembly.MapEntryCombiner when having a JDBC Inbound in a clustered environment

EE-3322

ClassCastException using inbound file endpoint in cluster

EE-3327

Add property to disable MMC agent to wrapper.conf

EE-3344

populatem2repo script does not include mmc related jars

EE-3394

Populate M2 Repo does not populate Clover

EE-3449

Incorrect validation for node ID in cluster causes error on removal if node IDs are not reassigned

EE-3470

Queues with limited size behave differently in standalone and cluster mode

EE-3473

The generated Studio runtime bundle needs to have a different internal structure

EE-3475

Update assembly-whitelist to support latest clover-version

EE-3496

Expensive lookup in Spring Registry is performed every time a MEL expression is evaluated

EE-3535

Change MVEL dependency to use mule’s MVEL

MULE-6577

Failure to propagate the correlation ID across JMS queues

MULE-6800

Thread leak on Mule redeployments for embedded

MULE-6831

Applications deleted when deployment fails

MULE-6908

Property place holders should be supported in test conectivity

MULE-6918

Add dynamic round robin routing support

MULE-6920

Race condition on startup of Mule Context

MULE-6959

Race condition creating MVELExpressionLanguage instances

MULE-6965

Error during mule message serialization when using byte array as payload

MULE-6968

Http endpoint with path="" or path="/" do not attend requests at root level

MULE-6969

InputStream not closed on Scriptable

MULE-6988

The Jetty transport does not have an option to configure the number of acceptor threads

MULE-6989

Quartz synchronous is not using the configured exception strategy

MULE-6990

OOM exception using foreach

MULE-6993

ClassCast exception when using cxf:proxy-service and validationEnabled, and the request contains a CDATA field.

MULE-6995

DynamicOutboundEndpoint does not use the connector’s service overrides

MULE-6997

Rollback Exception Strategy retries an incorrect number of times

MULE-6999

File Transport delays the processing of files when pollingFrequency attribute is uncomfortably narrow

MULE-7005

ServerNotification completing work after listener failure

MULE-7008

Private flow sends duplicate message when replyTo property is set

MULE-7012

HTTP/HTTPS outbound endpoints ignore the keep-alive attribute

MULE-7015

ObjectToHttpClientMethodRequest fails to process DefaultMessageCollection when http.version is set to 1.0

MULE-7025

Serialization exception using persistent queues

MULE-7027

ExpiringGroupMonitoringThread must process event groups only when the node is primary

MULE-7028

MuleMessageToHttpResponse not evaluating outbound scope to set the content type header

MULE-7034

MuleEvent is not serializable when using a JDBC inbound endpoint with a nested query

MULE-7036

QueuedAsynchronousProcessingStrategy ignores queue store configuration

MULE-7040

Request-reply throwing ResponseTimeoutException on Mule shutdown

MULE-7041

EventProcessingThread must manage exceptions thrown by implementation classes

MULE-7042

Event correlation timeout incorrectly detected on cluster

MULE-7050

MuleApplicationClassLoader loadClass() method not synchronized

MULE-7055

PersistentObjectStorePartition throws ObjectDoesNotExistException with a null message

MULE-7062

It is not possible to send outbound attachments over http

MULE-7080

Race condition checking file attributes on SFTP transport

MULE-7087

NullSessionHandler - Empty Mule Session header

MULE-7088

Improve the way Mime types are registered for outbound http attachments

MULE-7096

Performance problem accessing Spring Registry every time a MEL expression is evaluated

MULE-7110

Improve JMS transport to support reconnection at the endpoint level

MULE-7114

Outbound HTTP Patch call is not sending the payload as message body

MULE-7116

Message receiver fail when trying to schedule work after reconnection

MULE-7118

Incompatible usage of MVEL on Drools

MULE-7125

requireClientAuthentication="true" not working on jetty SSL connector

MULE-7144

Differentiate TCP connection timeout from responseTimeout

MULE-7148

Differentiate HTTP connection timeout from responseTimeout

MULE-7153

JMS Queue - CXF Service failing in 3.4.1 EE, working in 3.4.0 EE

MULE-7155

Add appending support to the SFTP transport

MULE-7165

Request Body is not closed in the HttpMessageReceiver

Mule Management Console

Issue Description

MMC-1521

Reduce number of operations in the deployment process

MMC-1523

Streamline externalization of persistence into PostgresSQL and other DBs

MMC-1526

Allow to view more events on BE page in Webapp

MMC-1546

Improve business events filter behavior for complex queries

MMC-1547

New Cluster option disabled when it shouldn’t

MMC-1555

Add SQL Server support and instructions for MMC state data and BE

MMC-1560

Provide feedback link is broken

MMC-1561

Support link is broken

MMC-1572

Create separate 3.4.2 war file with MS SQL Server support

MMC-1575

Business events persist mechanism needs to be updated to new mapping and get concurrency improved

MMC-1576

Reduce load of repetitive queries from business events

MMC-1578

Business events - events tab should also have paging

MMC-1583

Optimize indexing strategy for business event tables

MMC-1584

Improve business events caching mechanism, remove unnecessary caches

MMC-1597

When adding search filters, take less time to show the available options

MMC-1598

Fix removal of node from cluster when node ids are not in sequence

MMC-1600

Typo in button - "Applies changes" should be "Apply changes"

MMC-1609

Add comments in database / LDAP configuration properties files

MMC-1610

Encrypt passwords in database

MMC-1611

Externalize db query for cleanup script

MMC-1613

Make sure all external links open in a new browser tab

MMC-1619

Create KB article and groovy script to address MS-SQL issues with Cleanup Script

MMC-1643

User with only monitor rights has issues accessing all information if there’s a cluster defined

MMC-1667

Externalize combo population query

MMC-1666

Upgrade to OpenJPA 2.3.0

SE-32

Improve LDAP configuration security

SE-170

Business Events limited to 1000 results

SE-373

SQL Exception is thrown when Tracking Cleanup script is executed on MySQL Tables

SE-477

MMC switches tabs when selecting the log folder

Third Party Connectors and other Modules

At this time, not all of the third party modules you may have been using with previous versions of Mule ESB have been upgraded to work with Mule ESB 3.4.2. Contact MuleSoft if you have a question about a specific module.

The following library has been upgraded with Mule ESB 3.4.2:  

  • Java Secure Channel (JSch) 0.1.50

Migrating from Mule ESB 3.4.1 to 3.4.2

The improvements and fixes that Mule ESB 3.4.2 introduces require no specific migration activities for Mule ESB or Mule Management Console. For more details on how to migrate from previous versions of Mule ESB, access the migration guide embedded within the release notes for previous versions of Mule, or the library of legacy Migration Guides.

Support Resources

Refer to the following resources for assistance using Mule ESB 3.4.2.