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Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.

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[The _About Eclipse Collections_ section of the _Eclipse Collections Reference Guide_](https://github.com/eclipse/eclipse-collections/blob/master/docs/0-RefGuide.adoc#about-eclipse-collections) contains [a EclipseCollectionDiagram.png diagram](https://github.com/eclipse/eclipse-collections/blob/master/docs/EclipseCollectionDiagram.png). One of the boxes at the bottom contains the following: > The key enhancement Eclipse...

[The _Concept_ section of EC's homepage](https://eclipse.dev/collections/#concept) contains graphs of a performance benchmark measuring the memory footprint of EC classes compared to JDK equivalents. These measurements unfortunately have little value without...

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.

The API documentation says that these methods return `ListIterable` but it didn't say if the element at the beginning of the returned list would have the most or the least...

# Repairing Code Style Issues ## ToArrayCallWithZeroLengthArrayArgument The performance of the empty array version is the same, and sometimes even better, compared to the pre-sized version. Also, passing a pre-sized...

* pin versions of jxr and surefire-report plugin, they were undefined up to now * upgrade all maven plugin versions except Tycho (that should be done separately) * add the...

* Remove jcni version (it's been removed in 2017 from the code base). * Remove api version (it's never been used since moving the code to eclipse). * Set a...

As referenced in the PR below, the map test suite does not have a MapTestCase class like the other collection test suites. It would be better practice to extract the...

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);...

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As mentioned in https://github.com/eclipse/eclipse-collections/issues/500, the `Collection#removeIf` has not been overridden in Eclipse Collection yet. I would like to work on that!