[CENTRAL REPOSITORY] The MicroEJ Central Repository has been updated to v2.5.0

Hello all,

We’ve just updated the MicroEJ Central Repository [1]. This is the first major update for MICROEJ Studio and MICROEJ SDK 5. You can find the changelog below.

Almost all modules have been migrated to be compliant with MicroEJ Module Manager [2], which appear in the module Changelog as Convert to MMM project.

The changelog below is a brief summary, with major highlights. To go further please consult:

The MicroEJ Central Repository is accessible by default in the MICROEJ Studio and SDK and provides libraries to enrich your applications and help development.

Good coding!
The MicroEJ Team

[1] https://repository.microej.com/
[2] https://developer.microej.com/packages/documentation/TLT-0831-SPE-MicroEJModuleManager-2.0-C.pdf

Foundation Libraries


Added annotations for Java null analysis.

Artifact “ej.api.edc” new version added (v1.3.0)


Added support for compile-time constants.

Artifact “ej.api.bon” new version added (v1.4.0)


Added API for real-time event recording. A Platform adaptation layer is available for Segger SystemView.

Artifact “ej.api.trace” added (v1.0.0)


Made a clear separation between the Security API (certificates management, encryption algorithms,…), and the Secure Socket Layer (SSL) API that depends on both NET and Security APIs.

Artifact “ej.api.security” new version added (v1.3.1)
Artifact “ej.api.ssl” new version added (v2.2.0)


Added an API for connecting to Bluetooth Low Energy devices.

Artifact “ej.api.bluetooth” new version added (v1.0.2)

Front Panel

The Front Panel framework is now provided by the MicroEJ Architecture (as of version 7.11.0) instead of the UI Pack. The Front Panel framework API has been redesigned and is now distributed using the ej.tool.frontpanel.framework module instead of the legacy Eclipse classpath variable.

Artifact “ej.tool.frontpanel.framework” added (v1.0.0)
Artifact “ej.tool.frontpanel.widget” added (v1.0.0)
Artifact “ej.tool.frontpanel.widget-microui” added (v1.0.0)

Platform Qualification

Added the FS (FileSystem) Pack validation testsuite with source code.

Artifact “com.microej.pack.fs.fs-testsuite” added (v3.0.0)

REST Server

Added new major version of the Hoka library, which has been refactored, optimized for performance and migrated to latest libraries, among with updated examples of use.

Artifact “ej.library.iot.hoka” new version added (v7.1.0)