Article · Wikipedia archive · Last revised May 29, 2026

Javolution

Javolution is a real-time library aiming to make Java or Java-Like/C++ applications faster and more time predictable. Indeed, time-predictability can easily be ruined by the use of the standard library which is not acceptable for safety-critical systems. The open source Javolution library addresses these concerns for the Java platform and native applications. It provides numerous high-performance classes and utilities useful to non real-time applications as well. Such as:Collections classes, supporting custom views, closure-based iterations, map-reduce paradigm, parallel computing, etc. Worst-case execution time behavior documented using Realtime Java annotations Fractal structures to maintain high-performance regardless of the size of the data OSGi contexts allowing cross cutting concerns to be addressed at run-time through OSGi published services without polluting the application code Algorithmic parallel computing support with concurrent contexts and general-purpose computing on graphics processing units with compute context Struct/Union base classes for direct interfacing with native applications Perfometer utility class to measure worst-case execution time with high precision XML Marshalling/unmarshalling facility capable of direct serialization/deserialization of existing classes StAX-like XML reader/writer which does not require object creation and consequently faster than standard StAX Simple yet powerful configuration management for your application.

Last revised
May 29, 2026
Read time
≈ 2 min
Length
376 w
Citations
15
Source
Wikipedia ↗
Javolution
DeveloperJean-Marie Dautelle
Stable release
7.0.0 / July 2, 2017 (2017-07-02)
Written inJava, C++
Operating systemCross-platform
Size480 KB (archived)
TypeReal-Time Library
LicenseBSD
Websitejavolution.org
Repository

Javolution is a real-time library aiming to make Java or Java-Like/C++ applications faster and more time predictable. Indeed, time-predictability can easily be ruined by the use of the standard library (lazy initialization, array resizing, etc.) which is not acceptable for safety-critical systems. The open source Javolution library addresses these concerns1 for the Java platform and native applications. It provides numerous high-performance classes and utilities useful to non real-time applications as well. Such as:

Since version 6.0, Javolution makes it easy to port14 any Java source code to C++ for cross-platform native compilation. OSGi and JUnit have been ported and are included with the core C++ distribution.

All modules (Java and native) are built using maven. Javolution can be used15 either as an OSGi bundle (preferred) or as a standalone library.

References

References

  1. Fully Time Deterministic Java
  2. javolution.util
  3. Collection Views
  4. Realtime Annotation
  5. Fractal Table
  6. OSGi Contexts
  7. Concurrent Contexts
  8. "Compute Contexts". Archived from the original on 2013-12-29. Retrieved 2013-12-27.
  9. Struct/Union
  10. Perfometer Utility
  11. XML Marshalling/unmarshalling Facility
  12. StAX-Like Readers/Writers
  13. Javolution Configuration Management
  14. "Javolution C++ Overview" (PDF). Archived from the original (PDF) on 2013-10-01. Retrieved 2013-08-19.
  15. Javolution Usage Overview
External links