indriya

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Following the discussion #328 [Apache Commons Numbers](https://commons.apache.org/proper/commons-numbers/) is now final for some time. For an alternative Number System the [fraction](https://commons.apache.org/proper/commons-numbers/commons-numbers-fraction/index.html) module sounds best suited.

keilw

Benchmark using JMH or similar

1

keilw

Improvement: Provide a mechanism to get list of all Dimension for given quantity

2

There should be mechanism to get a list of all valid Dimension for a Quantity LENGTH and other quantity too.

cdwivedi

Foreign Units must be handled with no Surprises

5

Several code fragments assume that any Unit is an (or a subtype of) `AbstractUnit`. 1) This might result in `ClassCastException`s, when instead we should throw a proper and more descriptive...

andi-huber

multiply, divide on Unit does not return same Unit

3

Is this behavior correct? ``` Unit u = METRE_PER_SECOND; u.mulitply(0.001).divide(0.001) != u? ``` Test... ``` private static final JsonMapper UOM_JSON_MAPPER = JsonMapper.builder() .addModule(new UnitJacksonModule()) .build(); public static String serialize(Object objectToSerialize)...

samodadela

Change OSGi generation to bnd-maven-plugin

1

Change OSGi generation from Felix `maven-bundle-plugin` to `bnd-maven-plugin`. The Felix plugin still seems problematic with extra attributes like Automatic-Module-Name after 4.x and that version of the plugin is not compatible...

keilw

Based on https://github.com/unitsofmeasurement/indriya/issues/257#issuecomment-532363116 there could be a need for some special handling of the Newton-metre, because like [Wikipedia](https://en.wikipedia.org/wiki/Newton-metre) also states: > This usage is generally discouraged,[[3]](https://en.wikipedia.org/wiki/Newton-metre#cite_note-3) since it can lead...

keilw

Custom default QuantityFormat and UnitFormat

1

Currently, both Quantity#toString and Unit#toString default to a built-in formatter, SimpleQuantityFormat and SimpleUnitFormat. I believe it would be useful to provide a way to set a custom formatter globally, especially...

puigru

Names of derived units

1

This is a revisit of #271. Many units are without their names because they're derived from others. This greatly reduces the usefulness of Unit#getName. These all return `null`: `Units.GRAM.getName()` (expected:...

puigru

Improve error message for insufficient number/format of arguments

2

[`No Unit found`](https://github.com/unitsofmeasurement/indriya/blob/master/src/main/java/tech/units/indriya/format/CommonFormatter.java#L66) is not descriptive at all. We should at least make that error message more clear for cases like: - "75kg" instead of "75 kg" _Our assumption for...

teobais