Gradle - compileJava - remove compile Warnings

Question

We use Gradle 2.1 and java plugin. During compileJava different warnings occur, for example:

warning: [options] bootstrap class path not set in conjunction with -source 1.7
Note: ../SomeClass.java uses or overrides a deprecated API.

We know what they mean but won't fix them (don't ask, other thread :) Is there a way to avoid these messages somehow? They disturb the output a lot:

:project1:compileJava
warning: [options] bootstrap class path not set in conjunction with -source 1.7
Note: SomeClass.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
1 warning
:project1:processResources
:project1:classes
:project1:jar
:project2:compileJava
warning: [options] bootstrap class path not set in conjunction with -source 1.7
1 warning
:project2:processResources
:project2:classes
:project2:jar
:project2:war

Isn't is possible for example to redirect the stderr stream during compileJava so that we can grep out the warnings? Or is there another way?

I used 'compileJava.options.warnings = false' and 'compileTestJava.options.warnings = false' but this just solved some problems. To avoid to much waste of time I went to the other teams and solved the 'problem' on their code side. — Marcel, Apr 13 '15 at 12:29
Ugh, I hate the fact that Gradle makes you edit the build files. This has to be the biggest reason I would stick to Maven if it was my choice. — Sridhar Sarnobat, Oct 28 '19 at 18:15

score 11 · Answer 1 · edited Feb 21 '17 at 00:26

11

try this:

tasks.withType(JavaCompile) {
    options.warnings = false
}

edited Feb 21 '17 at 00:26

Jared Burrows

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answered Feb 17 '15 at 23:13

Rene Groeschke

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this removes for me that warnings about bootstrap, but not the notes about deprecation. I'm not sure if it was clear that I also want to avoid them, nevertheless +1 – Marcel Feb 18 '15 at 08:02
Doesen't get rid of `sun.*` deprecation warnings for men. – Sridhar Sarnobat Oct 05 '20 at 23:29

score 2 · Answer 2 · answered Feb 19 '15 at 01:06

2

Try adding:

options.compilerArgs += '-Xlint:-deprecation'

answered Feb 19 '15 at 01:06

cmcginty

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Could not get unknown property 'options' – xeruf Nov 12 '17 at 23:46
4

@Xerus i think cmginty means to put that line in a JavaCompile task configuration block, ie. `tasks.withType(JavaCompile) { options.compilerArgs += '-Xlint:-deprecation' }` – jerryb Nov 19 '17 at 22:04

score 2 · Answer 3 · answered Jul 17 '17 at 11:17

2

No answer posted so far that currently works (Gradle 4.0.1), so here's what does work:

options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation"

answered Jul 17 '17 at 11:17

Abhijit Sarkar

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I hate how gradle doesn't allow such options at invocation time. This is why I prefer maven. – Sridhar Sarnobat Jun 12 '20 at 02:40
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@SridharSarnobat You could easily define a specific property, and set that on the command line to do suppress exactly that what you want to be suppressed. – GhostCat Feb 15 '21 at 11:55

score 0 · Answer 4 · answered Oct 05 '20 at 23:51

0

I think it really depends on the warnings. For the warnings I was getting, this worked:

    tasks.withType(JavaCompile) {
        options.compilerArgs += ["-nowarn", "-XDenableSunApiLintControl"]
    }

Sanity restored.

answered Oct 05 '20 at 23:51

Sridhar Sarnobat

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Gradle - compileJava - remove compile Warnings

4 Answers4

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