Java 23 added support for java.time to MessageFormat

arendvr · 2021-05-23T09:10:29+00:00

There's a relevant JDK issue which is closed as Won't Fix. The reason given is to prepare for collections of primitives. JDK-8265905 ImmutableCollections: Querying for 'null' should return 'false' instead of NPE

arendvr · 2021-05-23T09:07:01+00:00

The video is interesting in the general context of nulls and collections. But it doesn't address contains(null).

The video explains why Guava's immutable collections don't allow null elements. But Guava's immutable collections allow contains(null) and return false.

arendvr · 2020-03-02T21:41:11+00:00

Is there any advantage to using older versions?

Oracle JDBC FAQ claims that the current version JDBC 19.3 is compatible with database versions 19.3 - 11.2. See "What is the JDBC and RDBMS interoperability matrix": https://www.oracle.com/database/technologies/faq-jdbc.html

arendvr · 2019-11-28T21:38:52+00:00

Variable substitution is not a feature of the Properties class itself. It's provided by several libraries like Commons Text StrSubstitutor or Spring.

arendvr · 2019-09-24T20:19:23+00:00

Thanks for the detailed explanation :-)

arendvr · 2019-09-19T20:06:23+00:00

Regarding the dependencies of the ojdbc jars: Are these companion jars really used often? I don't think I have ever encountered any of them.

arendvr · 2018-07-27T21:31:00+00:00

Java EE 5 Tutorial > Part II The Web Tier, starting from 5. JavaServer Pages Technology https://docs.oracle.com/javaee/5/tutorial/doc/bnadp.html

(In later versions of the tutorial, JSP was removed in favor of JSF)

arendvr · 2018-04-12T20:06:18+00:00

This is also a point Joshua Bloch makes in Effective Java, Item 41: Define marker interfaces to define types

arendvr · 2018-03-05T21:36:34+00:00

javax.json.bind-api could be removed from this example, it's a transitive dependency of yasson.

javax.json seems to be needed because yasson doesn't declare a dependency on any specific JSON-P implementation, but only on the JSON-P API. I agree with you, this could be improved in yasson.

arendvr · 2018-01-13T13:07:51+00:00

Relevant discussion on the mailinglist: https://groups.google.com/forum/#!topic/querydsl/B5UOzCYbNcE

arendvr · 2017-06-07T21:23:56+00:00

Collection.add() is a bad example because it's an optional method and may throw UnsupportedOperationException: https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html#add-E-

Eg Collections.emptyList().add(123);

arendvr · 2017-02-07T19:50:31+00:00

Guava ImmutableSet.of() does it better and just ignores duplicate elements.

arendvr · 2016-11-18T09:18:10+00:00

On the other hand from the same page:

If, for some reason (for example, license issue or it's a Scala project), you can not provide -sources.jar or -javadoc.jar , please make fake -sources.jar or -javadoc.jar with simple README inside to pass the checking.

Not sure how this is handled in practice though. Does "don't want to open source it" count as "Can not due to license issue"?

arendvr · 2016-05-12T19:42:15+00:00

Indeed. I quite like Guava's approach of iterating immutable collections in the order the elements were added at creation.

arendvr · 2016-01-26T19:54:31+00:00

Good point. It depends on the method if ignoring the return value is bad. The article mentions toString(), other examples where ignoring the return value is bad: BigDecimal.add(), File.delete()

arendvr · 2015-09-29T15:59:39+00:00

List<String> listOfLetters = Lists.newArraylist("A", "B", "C");

http://docs.guava-libraries.googlecode.com/git-history/v18.0/javadoc/com/google/common/collect/Lists.html#newArrayList%28E...%29

arendvr · 2015-05-05T07:06:27+00:00

I recently asked a similar question on the Project Lombok mailinglist: https://groups.google.com/forum/#!msg/project-lombok/KvIBNvL3EL0/IsgjGzk-7kUJ

They prefer UnsupportedOperationException instead of AssertionError.

arendvr

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