Valhalla

Zeus in Valhalla

Valhalla

In the "Zeus" hall on JCrete 2019 Hack day Werner got the Valhalla Early-Access Build of Java 14 to run with Unit API.

Bringing together Ancient Greek gods with their equivalents from Nordic mythology if you want. You can find them under valhalla demos.


Public Review Final Approval

This week the first ever Public Review Final Approval Ballot for JSR 385 at the Java Community Process finished. JSR 385 was approved by the JCP Executive Committee: https://jcp.org/en/jsr/results?id=6199.

We plan to release a final Specification document and publish all artifacts to JCP.org soon. In the meantime, you can find them on Github already, API: https://github.com/unitsofmeasurement/unit-api/releases/tag/2.0
RI: https://github.com/unitsofmeasurement/indriya/releases/tag/2.0
and the TCK: https://github.com/unitsofmeasurement/unit-tck/releases/tag/2.0


World Metrology Day 2019

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May 20 is World Metrology Day, commemorating the anniversary of the signing of the Metre Convention in 1875. This treaty provides the basis for a coherent measurement system worldwide that underpins scientific discovery and innovation, industrial manufacturing and international trade, as well as the improvement of the quality of life and the protection of the global environment.

World Metrology Day 2019 has a special importance, because on 16 November 2018, the General Conference on Weights and Measures agreed perhaps one of the most significant revisions to the International System of Units (the SI) since its inception. Research into new measurement methods, including those using quantum phenomena, underpin the change, which comes into force on 20 May 2019. The SI is now based on a set of definitions each linked to the laws of physics and have the advantage of being able to embrace further improvements in measurement science and technology to meet the needs of future users for many years to come.


100-Thousandth Download of Unit-API exceeded

Just one week before World Metrology Day 2019 and shortly before the Public Review of JSR 385 the combined downloads of Unit-API (JSR 363 and 385) exceeded the 100-thousandth download within a period of 12 months:
111k Unit-API downloads

See Bintray statistics:
https://bintray.com/unitsofmeasurement/maven/javax.measure%3Aunit-api#statistics
Click "1 Year" date range.

Currently the vast majority are JSR 363 downloads, but once JSR 385 goes Final, we expect to see more of it and probably even a higher total number across both versions.


26th CGPM

Witness a historic moment; join an open session of the General Conference on Weights and Measures (CGPM)
considering the revision of the SI – including redefinition of four base units:

https://www.youtube.com/thebipm

What is the International System of Units and why do we need it?


Early Draft of JSR 385

Today exactly 2 years after JSR 363 went Final, the Java Community Process published the Early Draft Release of JSR 385 for Review:
https://jcp.org/aboutJava/communityprocess/edr/jsr385/index.html.

Corresponding GitHub release tags for the API:
https://github.com/unitsofmeasurement/unit-api/releases/tag/2.0-EDR
For the RI:
https://github.com/unitsofmeasurement/indriya/releases/tag/2.0-EDR
And for the TCK:
https://github.com/unitsofmeasurement/unit-tck/releases/tag/2.0-EDR