build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.1.2'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

apply plugin: 'findbugs'

allprojects {
    repositories {
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

configure(allprojects) {
    apply plugin: 'findbugs'

    task findbugs(type: FindBugs) {
        ignoreFailures = false
        effort = "max"

        classes = fileTree('build/intermediates/classes/')
        source = fileTree('src/main/java')
        classpath = files()

        excludeFilter = file("$rootProject.rootDir/config/findbugs/exclude.xml")

        reportLevel = "high"
        reports {
            xml.enabled = false
            html.enabled = true
        }
    }
}