Gradle disable all incremental compilation and parallel builds
<p>In a small set of sbt projects we needed a protobuf/grpc compilation, and because only Gradle has normal support for that we used it to just do the protobuf related tasks.</p>

<p>Sometimes it will randomly fail compiling the very same thing and will succeed on retry, we determined that its because of incremental Java compilation.</p>

<p>I want to disable all sorts of incubating features and incremental compilations, I want this thing to be deterministic.</p>

<p>For that I tried </p>

<pre><code>compileJava {
    //enable compilation in a separate daemon process
    options.fork = false

    //enable incremental compilation
    options.incremental = false
}
</code></pre>

<p>but Gradle will still give output like this (apparently ignoring those flags)</p>

<pre><code>Parallel execution is an incubating feature.
Incremental java compilation is an incubating feature.
:deleteGeneratedSource
:clean
:extractIncludeProto
:extractProto UP-TO-DATE
:generateProto
:recompileProto
</code></pre>

<p><strong>So how do we disable parallel execution and incremental Java compilation?</strong></p>