Add a expandWildcardImports API for java ([diffplug#2777](diffplug#2594)) diffplug#2744

Author: Vincent Potucek

build.gradle

@@ -10,6 +10,7 @@ apply from: rootProject.file('gradle/java-publish.gradle')
 apply from: rootProject.file('gradle/changelog.gradle')
 apply from: rootProject.file('gradle/rewrite.gradle')
 allprojects {
+	apply from: rootProject.file('gradle/error-prone.gradle')
 	apply from: rootProject.file('gradle/spotless.gradle')
 }
 apply from: rootProject.file('gradle/spotless-freshmark.gradle')

gradle/spotless.gradle

@@ -5,7 +5,7 @@ spotless {
 		java {
 			bumpThisNumberIfACustomStepChanges(1)
 			eclipse().configFile rootProject.file('gradle/spotless.eclipseformat.xml')
-			// expandWildcardImports() todo: use after release (No signature of method: com.diffplug.gradle.spotless.JavaExtension.expandWildcardImports() is applicable for argument types: () values: [])
+			// expandWildcardImports() todo: use after release
 			forbidWildcardImports()
 			forbidRegex('ForbidGradleInternal', 'import org\\.gradle\\.api\\.internal\\.(.*)', "Don't use Gradle's internal API")
 			formatAnnotations()