error: invalid flag: -XepAllErrorsAsWarnings

[vivian196167]

Hi,

I am using gradle 6.8.1 and java 11. I init a gradle app project, and try to use this gradle-errorprone-plugin. it works fine until I want to make all errors showing and dot break the compile. My configuration is as bellow:

[vivian196167]

plugins {
// Apply the application plugin to add support for building a CLI application in Java.
id 'application'
id("net.ltgt.errorprone") version "3.1.0"
}

repositories {
// Use JCenter for resolving dependencies.
jcenter()
mavenCentral()
maven {
url = uri("https://plugins.gradle.org/m2/")
}
}

dependencies {
// Use JUnit test framework.
// testImplementation 'junit:junit:4.13'

// This dependency is used by the application.
implementation 'com.google.guava:guava:29.0-jre'
errorprone("com.google.errorprone:error_prone_core:2.12.1")

}

application {
// Define the main class for the application.
mainClass = 'come.demo.Hello.App'
}

// import net.ltgt.gradle.errorprone.errorprone
import net.ltgt.gradle.errorprone.CheckSeverity

tasks.withType(JavaCompile).configureEach {
// options.errorprone.disableWarningsInGeneratedCode = true
// options.errorprone.allErrorsAsWarnings = true
options.errorprone.disableWarningsInGeneratedCode.set(true)
options.errorprone.allErrorsAsWarnings.set(true)
// options.compilerArgs << "-XepAllErrorsAsWarnings"
// options.compilerArgs.addAll(['-XDcompilePolicy=simple', '-XepAllErrorsAsWarnings'])
options.compilerArgs += ["-XepAllErrorsAsWarnings"]
// options.errorprone.errorproneArgs += ['-Xep:ParameterName:OFF']
// check("CatchFail", CheckSeverity.OFF)
}

[vivian196167]

then I run as ./gradlew assemble, I got an error:

• What went wrong:
  Execution failed for task ':app:compileJava'.

error: invalid flag: -XepAllErrorsAsWarnings

Can somebody help me out?

[tbroyer]

-XepAllErrorsAsWarnings is not a compiler argument, it's an Error Prone argument (to be passed whitespace-separated as part of the -Xplugin:ErrorProne compiler argument); but you shouldn't have to use it when using the plugin (that's the whole idea).

Your build script should read:

tasks.withType(JavaCompile).configureEach {
  options.errorprone {
    disableWarningsInGeneratedCode = true
    allErrorsAsWarnings = true
    // disable("ParameterName", "CatchFail")
  }
}

(i.e. you shouldn't even need the CheckSeverity enum)