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Mule Runtime 4.1.6 Release Notes

Initial Release: August 29, 2019

Mule Runtime 4.1.6 includes fixes, known issues, and patch releases.

Changes

Not applicable.

Upgrade Requirements

Not applicable.

October 2020

Patch release version: 4.1.6-20200921

The October update addresses the following issues:

Issue Description

SE-16282

Resolved an issue in which Anypoint Connector for Kafka (Apache Kafka Connector) returned the java.nio.file.InvalidPathException: Illegal char <:> exception when accessing filesystem configuration files.

September 2020

Patch release version: 4.1.6-20200824

The September update addresses the following issues:

Issue Description

MULE-18390

Fixed an OutOfMemoryError: Metaspace issue that occurred when running MUnit tests.

MULE-18312/SE-13775

Resolved an issue in which running the MUnit test for an application using APIkit failed to upgrade from 4.1.4 to a later version.

MULE-17647/SE-12720

Fixed an issue in which a domain redeployment didn’t honor the application status and incorrectly restarted apps that were stopped before the redeployment.

SE-13404

Fixed an issue with event processing that occurred when executing MUnit tests on apps using Mule server notifications.

SE-13429

Resolved an issue in which MUnit tests didn’t execute when using a Java class.

MULE-17096/SE-12340

Fixed a NullPointerException error that occurred when using a lazy initialization subflow with an Async scope.

July 2020

Patch release version: 4.1.6-20200622

The July update addresses the following issues:

Issue Description

MULE-18506, SE-16470

Reverted MULE-18370 because it caused a key collision in the ManagedCursorProvider cache management.

SE-15689

Fixed an issue that caused an Unexpected end-of-input at payload error while appending the payload to a file in /tmp.

June 2020

Patch release version: 4.1.6-20200518

This patch release consolidates fixes to Mule 4.1.6 since the initial release on August 29, 2019. The fixes extend through June 2020.

Issue Description

SE-15592

Fixed an incorrect value when accessing variables' content in complex transformations with loops.

SE-13691

Fixed issues in which the Scheduler incorrectly ran twice or didn’t honor the configured cron or fixed-frequency setting on restart.

AGW-3949

Reduced log levels for API Gateway recoverable errors.

MULE-17706

Added support for HTTP header injection in Anypoint Connector for HTTP.

SE- 13729

Fixed an issue where the monitoring feature didn’t work on workers with a static IP address.

SE- 13657

Fixed an issue with persistent queues in the Europe control plane

SE- 13613

Fixed a backward-compatibility issue with TLS support.

SE- 13124

Fixed the KryoException (Could not deserialize object) error.

SE- 13095

Inbound metrics did not appear for some apps.

SE- 13004

Fixed an issue where the CloudHub worker was unresponsive and unable to start on its own.

SE- 12896

Fixed an issue with excessive logging filling /tmp and partition 100%.

SE- 13388

Fixed an issue where the HTS service was not deleting file descriptors.

SE- 13118

Fixed inconsistent property loading.

SE- 12626

SFTP connector was not reconnecting after JSchException error.

SE- 13047

Mule app encounters deadlock when submitting parallel requests in CloudHub.

SE- 12906

Fixed memory leak on PolicyStateHandler for error scenarios.

Initial 4.1.6 Release

Release date: August 29, 2019

The initial release of Mule 4.1.6 includes known limitations and fixes.

Known Limitations and Workarounds

Issue Description

AGW-3105

Requester policy hangs when headers in requester expression are null

AGW-3162

Stacktrace logged after redeploying offline policy with multiple api pointcuts

AGW-2720

Expression with vars causes policy failure in operation

MULE-17312

Race condition in commons-pool2 causes classloader leak that manifest on certain scenarios after redeploy an app

Fixed Issues

Version 4.1.6 fixes policy violation generation issues when using automated policies.

Issue Description

MULE-17048

Race condition when stopping a flow with an inflight event in an async block

MULE-16995

Shared runtime deps in app mess up classloading

MULE-16994

Use of cache instead of WeakHashMap to avoid infinite loop in DefaultLifecycleInterceptor

MULE-16991

Race condition when invalidating cached connections

MULE-16986

XA Transactions fail to rollback on ConnectionException

MULE-16983

Reconnection should not retry when resource has joined active transaction

MULE-16982

ArrayOutOfBoundException when creating custom scheduler

MULE-16967

Database bulk parameters missing on artifact declaration generated from mule-config

MULE-16964

TryScope with no tx fails within subFlow+async

MULE-16897

No primary node notification listener set on extension sources with cluster support

MULE-16896

Bound connections not released on TransactionException

MULE-16894

IllegalStateException in Polling Source when cluste node is shutting down

MULE-16891

flowTrace OoM when using foreach with large collections

MULE-16878

StringToEnum Transformer should have different names for each extensionModel

MULE-16872

Async in a transaction executes in the same thread as the transaction

MULE-16856

Starting a flow should fail when a task is rejected from scheduler.

MULE-16853

ConfigurationProperties does not honor properties hierarchy when having prop resolved with placeholder

MULE-16841

Password mask regex does not consider dw and non-literal expressions.

MULE-16831

Fix XA transactions with bitronix

MULE-16830

Global Properties are taking precedence over Application Properties

MULE-16824

LazyInit should initialize the Mule configuration at part of the component initializations phase

MULE-16817

Pooled connections are not removed from the pool when they should evict.

MULE-16790

Global ErrorHandler does not resolve transaction

MULE-16784

MuleClassLoaderLookupPolicy wrongly assumming javax.xml.bind.attachment as system package in Java 11

MULE-16775

OnErrorPropagate in global error handler is not rollbacking tx

MULE-16758

Multithreaded sources are concurrently reconnected more than once

MULE-16753

A transaction is not available error related to execution on a cpuLight thread

MULE-16744

spring.schemas exported from runtime conflict with spring dependencies used in an app

MULE-16730

Interception API: Validation all throws NullPointerException

MULE-16725

Fix race condition in flow lifecycle handling

MULE-16689

Lightweight class loader model builder cannot resolve a pom as it doesn’t have the remote repositories from mule application where it was declared the dependency

MULE-16672

org.mule.runtime.api.util.ResourceLocator is caching resources and it nos working with SNAPSHOT dependencies

MULE-16657

Metaspace leak when generating dynamic configurations

MULE-16636

CursorProvider is retained too long when cursors are opened but not consumed

MULE-16634

Source completion callback not called on failure

MULE-16621

JMS with XA transaction stops consuming message on TX timeout

MULE-16614

Some core classes do not generate any logs

MULE-16600

Lazy Init: websockets:config is unable to find http:listener-config

MULE-16581

Runtime does not shutdown after OptionalLong[15000] milliseconds

MULE-16580

Spring Bean 3.1 XSD definition being downloaded instead of taken from the classpath

MULE-16577

Parse Template not parsing correctly when expression manager returns value with # char

MULE-16571

Externalize log4j2.xml file in Mule 4 domain descriptor cannot be cast to application descriptor

MULE-16545

Exception ignored in Operators#nullSafeMap

MULE-16540

AuthorizationCodeState not updated on certain circumstances

MULE-16524

Before method is not called for interception API when having RequiredParameterValueResolvers with failing expression

MULE-16519

Avoid propagating InterruptedException in processingStragy dispose

MULE-16514

Persistent Partiion Store should delete partiition directory on dispose

MULE-16503

Found modules names not being logged by DefaultModuleRepository

MULE-16500

Janitor must be closed so that taken byte arrays are freed when ghostbuster applied

MULE-16483

Mule Domain is not disposing its RegionClassLoader

MULE-16480

Incorrect behavior of Logger component when handling backslashes

MULE-16455

Name attribute on flow-ref is missing after deserializing from XML

MULE-16449

NoSuchElementException on policies with SDK routers

MULE-16437

Improve ExtensionClient performance

MULE-16435

Extension operations logging in domain instead of app

MULE-16422

MuleArtifactClassLoader does not find resources with spaces when using resource

syntax.

MULE-16396

OnErrorPropagate should only rollback owned transactions

MULE-16330

Logging consumes too much CPU

MULE-16320

Remove overhead in event/message creation handling in policies

MULE-16319

Container classloader in embedded mode must have the embedded container classloader as parent

MULE-16314

NPE if object store is expired without maxEntries limit

MULE-16310

Backpressure strategy for scheduler sources must be FAIL

MULE-16308

Local authentication doesn’t prevail when there’re multiple "WWW-Authenticate" headers

MULE-16307

Reconnection Strategy model doesn’t communicate the "Blocking" parameter

MULE-16298

Redeployment fails due to file descriptor leaks when loading class model loader

MULE-16294

Paged Operations doesn’t apply Connection Lifecycle correctly

MULE-16283

Add JDK cryptography extension explanation for Secure Properties Tool doc

MULE-16282

ProcessingStrategies not working when scheduler raises REE

MULE-16275

Fix performance degradation introduced by MULE-16040

MULE-16260

Gatekeeper policy causes memory leak on policy engine

MULE-16259

LazyMuleArtifactContext leaves schedulers not stopped when using sub-flows

MULE-16248

on prem removal of .anchor file doesn’t delete application from /apps folder on Windows

MULE-16230

VersionFormatArtifactDescriptorValidator fails due to MavenBundleDescriptorLoader is not considering the effective pom model to read the version property

MULE-16221

HTTP:CONNECTIVITY error thrown from WSC hangs execution in CompositeProcessorChainRouter

MULE-16219

idempotent-message-validator does not generate a unique ID per component

MULE-16218

Interception API: Smart connectors inside subflow are not skipped properly

MULE-16208

Find resources is not taking into account lookup of files by directory

MULE-16205

IdempotentRedeliveryPolicy blocks CPU_LITE thread

MULE-16198

Deployment for app with HTTP fails when no internet connection

MULE-16185

Lazy Init: NPE when initializing subflow twice with until-successful

MULE-16172

Invalid extension model/xsd generated for enum

MULE-16159

ProcessingStrategy internal bufferSize is always 256 for flow-ref

MULE-16140

Source On Error callback is not called when an error occurs on the OnError Flow Handlers

MULE-16103

Wrong key name is generated by the icons service in Windows

MULE-15994

Executions inside Async scope uses Ring Buffer Threads

MULE-15991

No transformers for Iterator to byte[] or String cause error

MULE-15976

Backpressure: WAIT strategy does not work with WorkQueueProcessor

MULE-15932

System dependent line separators should be used for building Mule exception summary message

MULE-15861

Artifact declaration looses Mule "object" elements

MULE-15860

Extension model for Mule core does not contain 'object' construct

MULE-15599

Serializing an artifact model constructed from serializing a JSON loses data

MULE-15574

Mule Runtime fails to run batch jobs after stopping app while debugging

MULE-15460

Shared dependencies' dependencies are not shared

EE-6804

Bitronix Proxy hides connectivity exceptions

EE-6797

Bitronix exception when redeploying an app using XA transactions

EE-6796

Dirty Bitronix transaction log

EE-6780

Corrupt patches not applied but logged as applied

EE-6779

BitronixTransactionManager built before QueueManager initialize causes NPE

EE-6774

Memory leak on com.mulesoft.mule.runtime.bti.internal.xa.QueueManagerXaResourceProducer

EE-6769

Possible race condition when registering ConnectionFactory in Bitronix

EE-6710

Batch RecordFilteringStrategy is not filtering correctly

EE-6682

Table name transforms in cluster object store are only working for postgresql

EE-6681

Avoid casts to String in JdbcMapStore

EE-6680

Escape table names in DefaultDatabaseStoreQueryBuilderStrategy

EE-6670

Setting Batch History property throws org.springframework.beans.NotWritablePropertyException: Invalid property 'annotations'

EE-6664

Shutting down cluster node(s) causes data corruption in JdbcMapStore

EE-6579

Event states leaked in DefualtPolicyStateHandler

EE-6565

NoSuchElementException on mule-http-caching-policy

EE-6558

Mule 4 AMQP Listener scenario stops working after a few seconds

EE-6377

Batch Aggregator does not support JSON Payload

AGW-3213

Fix UriBuilder causing class not found

AGW-3142

Upgrading policy version is not using new policy jar

AGW-3074

Differentiate between ldap’s server wrong password and invalid credentials

AGW-3010

Change Max Cache Size for Federation Policies

AGW-2927

Change policyId sent to analytics from an Integer to a String

AGW-2852

Add local contract database reset in case of corruption.

AGW-2848

When GateKeeper enabled, and a POST / PUT is sent, payload is echoed

AGW-2826

NullPointerException when disposing runtime in slave node

AGW-2810

Content-Length header is not used in Analytics payload size

AGW-2794

IP not being sent to analytics with latest HTTP Connector

AGW-2707

NullPointerException when shutting down secondary node

AGW-2485

Reflection used in Analytics is hurting performance

DataWeave

  • Fix (PR #423): Optional should be supported in expected data type and Java bridge.

  • Add a property for escaping carriage return (CR) in the XML writer.

  • Fix (SE-11717): char carriage return (CR) should not be escaped in XML.

  • Fix (SE-11664): Bug in indexed XML reader parsing root elements with only text.

  • Fix (SE-11527): Support for dynamic namespace.

  • Fix (SE-9379): Issue that causes the deletion of file. Error was dw-buffer-output*.tmp FileNotFoundException.

  • Fix (SE-11246): Avoid file leak.

  • Fix (PR #401): Propagate multipart schema properties.

  • Fix (SE-10844): Always use UTF-8 when loading weave files.

  • Fix (SE-10706, PR #391): Dataweave expression in logger failing under high load.

  • Fix: Replace mutable.HashMap with ConcurrentHashMap in JavaBeanHelper.

  • Fix: Avoid memory leaks on logger and Mule typed values.

  • Fix: Avoid file leaks.

  • Fix (SE-10548): Improve distinctyBy memory usage: (1) Make it lazy. (2) Don’t materialize in advance the entire input.

  • Fix: Boolean support for header names.

  • Fix (PR #381): Excel reader issue when reading Boolean values.

  • Fix (SE-9664): Type inference problem was throwing empty.reduceLeft exception.

  • Fix (PR #358): Related to PROJECTX-4033. Error when setting literals to root arrays. `

Scheduler Service

  • NPE when a customScheduler is shutting down itself. (MULE-16760)

  • WARN logged when fixed rate task overlap in a single thread Scheduler. (MULE-16759)

  • Race condition in ThreadGroup destroying for customScheduler threadGrou. (MULE-16516)

  • Setting low heap memory in multicore machine causes Mule to fail to start. (MULE-16829)

  • Race condition in prestartCoreThreads for a Scheduler. (MULE-16858)

Oauth Service

  • Reuse http clients for OAuth token request (MULE-17006)

  • AuthorizationCodeState not updated on certain circumstances (MULE-16540)

MULE-16990

Improve troubleshooting logging for XA transaction

MULE-16954

Improve logging infrastructure performance

MULE-16881

migrate app deployment file to 4.1

MULE-16851

Implement CompositeConverter#toString to aid in transformers troubleshooting

MULE-16755

ObjectStore expire: account for inconsistencies that may occur in cluster

MULE-16569

TestConnectivity should be less verbose

MULE-16529

Performance improvements in flowstack

MULE-16445

XML SDL: Support camelized names in operations

MULE-16212

Avoid copying the whole event when just setting internal variables

MULE-14161

Add logging on the smart connector’s code

MULE-16713

Support application/java payloads in redelivery-policy

MULE-16395

Remove MetaspaceSize property from wrapper.conf to let JVM manage Metaspace GC

EE-6760

Make Bitronix XA connection pool configurable

MULE-17046

Update Raml Parser 2 to 1.0.37

MULE-17021

Upgrade Jackson to 2.9.9

MULE-16833

Optimize resolution of payload and attributes default parameters

MULE-16811

Update dom4j version to 2.1.1

MULE-16808

Update Apache Ant to 1.9.14

MULE-16673

Upgrade JRuby to 9.2.6.0

MULE-16582

Upgrade commons-io to 2.6

MULE-16278

Upgrade c3p0 to 0.9.5.4

MULE-15795

Upgrade Tanuki wrapper to 3.5.37

EE-6736

Update hazelcast to 3.12

EE-6317

Update kryo-serializers to 0.45

This version of Mule runtime is bundled with the Runtime Manager Agent plugin version 2.3.0.

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