Donald Raab

The upgrade to Java 11 will break compatibility with Java 8. There are a few library and language features that we would like to leverage in Eclipse Collections that were...

Optimize summaryStatistics for primitive Bags

5

Currently, `summaryStatistics` uses the default implementation which does not optimize for duplicates in Bags. It currently iterates over every element in the Bag. The method `summaryStatistics` should be overridden and...

Optimize withAll on MutableIntSetFactoryImpl and ImmutableIntSetFactoryImpl

4

The code currently in withAll on both mutable and immutable implementations calls toArray on IntStream which if the Stream is very large can be extremely expensive and won't take advantage...

The result types in sumOfPrimitiveProcedure.stg need to be widened to prevent overflow

5

I discovered there is an overflow error using `sumOfInt` in the following code when the batch size exceeded 536 This code returned the correct sum: ``` long sum = Interval.oneTo(2_000_000)...

MultiReaderFastList returning incorrect types for select, selectWith, reject, rejectWith

1

A complicated but hopefully minor issue was discovered during a workshop for Grace Hopper Celebration. A new contributor upgraded the Eclipse Collections Kata to version 12.0.0.M3 and a test began...

Create primitiveStream methods for IntSet, LongSet and DoubleSet

4

Since 10.0, we have had primitiveStream on `IntList`, `LongList` and `DoubleList`. This makes the following possible: ``` List list = IntLists.immutable.of(1, 2, 3) .primitiveStream() .mapToObj(Integer::toString) .toList(); Assertions.assertEquals(List.of("1", "2", "3"), list);...

Add JavaDoc to CaseFunction

3

CaseFunction currently has no JavaDoc. It should clarify that the cases are evaluated in order and the first match results in a return value. Multiple cases are not supported.

Create primitiveStream methods for IntBag, LongBag and DoubleBag

3

Since 10.0, we have had primitiveStream on `IntList`, `LongList` and `DoubleList`. This makes the following possible: ``` List list = IntLists.immutable.of(1, 2, 3) .primitiveStream() .mapToObj(Integer::toString) .toList(); Assertions.assertEquals(List.of("1", "2", "3"), list);...

Inner class <name>SumProcedure in abstractLazyPrimitiveIterable.stg should widen sum type for int, short, etc.

2

Today, the generated code for lazy int returns the following, which will overflow silently for large sums. ``` private static final class IntSumProcedure implements IntProcedure { private int sum =...

Add groupByEachUniqueKey to RichIterable

6

RichIterable currently has `groupBy` / `groupByEach` but only has `groupByUniqueKey` without the corresponding `groupByEachUniqueKey`. The method `groupByEachUniqueKey` would index an item in a `Map` using multiple keys. Each key will...