Update to support generate record from java 14

[zzBBc]

Motivation:

• Solves issue Add support for Java 16 records  #829 to support record from java 14

Modifications:

• From commit f10b510 still support and work completely in java 8, don't need to update java version if only purpose is generate record class
• I also update some lib and fix typo in unit test to support java 17, you can separate and create another version to a long term support in commit dc02cf7

Can you please review and merge the PR @JakeWharton

[Duzhinsky]

I think it is the most desirable feature for javapoet, but unfortunately, the tool maintenance consists only of small fixes. PR #840 does the same, but still not merged. The future of javapoet is discussed here. You could use the FabricMC/javapoet fork If you want to use records

[lenis0012]

+1 on this.

In the mean time for those who dont want to use a fork, there is another workaround for inner records (not top-level).
I am simply doing a string replace after saving the fie:

return MethodSpec.methodBuilder("Record__%sEvent".formatted(toTypeName(name)))
    .addModifiers(Modifier.PUBLIC)
    // ....

This creates a public void Record__MyEvent(String a, int b, boolean c) {}
Which I then replace:

try(
    OutputStreamWriter outputStream = new OutputStreamWriter(sourceFile.openOutputStream());
    StringWriter writer = new StringWriter()
) {
    JavaFile.builder(element.getQualifiedName().toString(), result)
        .indent("    ")
        .build()
        .writeTo(writer);
    outputStream.write(writer.toString().replace("void Record__", "record "));
}

Not the most elegant solution but it works.
I am using inner records but you can do the same for top-level records using classes. Although it would be a bit more painful.

[Jonpez2]

Is this likely to land at any point? Records are extremely nice, just like javapoet!

[Randgalt]

I'm planning on publishing this as a separate repo. See here: https://github.com/Randgalt/java-composer. Unless @JakeWharton/Square objects.

[Randgalt]

FYI - I've released v 1.0 of Java Composer with this change in it as well as support for sealed classes: https://github.com/Randgalt/java-composer