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If you use Eclipse Collections, there is indeed a third way to approach your specific example. Eclipse Collections' collectIf() method allows a single call to deal with both filtering and transformation.

myFinalList = myListToParse.collectIf(
    Objects::nonNull,
    elt -> doSomething(elt));

It evaluates eagerly and should be a bit faster than using a Stream.

EC's Collect pattern is documented in its reference guide.

Note: I am a committer for Eclipse Collections.

If you use Eclipse Collections, you can use the collectIf() method to filter and transform at the same time.

myFinalList = myListToParse.collectIf(
    Objects::nonNull,
    elt -> doSomething(elt));

It evaluates eagerly and should be a bit faster than using a Stream.

Note: I am a committer for Eclipse Collections.

If you use Eclipse Collections you can use the collectIf() method.

myFinalList = myListToParse.collectIf(
    Objects::nonNull,
    elt -> doSomething(elt));

It evaluates eagerly and should be a bit faster than using a Stream.

Note: I am a committer for Eclipse Collections.

If you use Eclipse Collections, there is indeed a third way to approach your specific example. Eclipse Collections' collectIf() method allows a single call to deal with both filtering and transformation.

myFinalList = myListToParse.collectIf(
    Objects::nonNull,
    elt -> doSomething(elt));

It evaluates eagerly and should be a bit faster than using a Stream.

EC's Collect pattern is documented in its reference guide.

Note: I am a committer for Eclipse Collections.

If you use Eclipse Collections you can use the collectIf() method.

MutableList<Integer> source =
    Lists.mutable.with(1, null, 2, null, 3, null, 4, null, 5);

MutableList<String> result = source.collectIf(Objects::nonNull, String::valueOf);

Assert.assertEquals(Lists.immutable.with("1", "2", "3", "4", "5"), result);

It evaluates eagerly and should be a bit faster than using a Stream.

Note: I am a committer for Eclipse Collections.

If you use Eclipse Collections you can use the collectIf() method.

myFinalList = myListToParse.collectIf(
    Objects::nonNull,
    elt -> doSomething(elt));

It evaluates eagerly and should be a bit faster than using a Stream.

Note: I am a committer for Eclipse Collections.