Gradle with static analysis tools (PMD,Findbugs,Lint) to use with Jenkins CI

build.gradle

apply plugin: 'com.android.application'
apply plugin: 'pmd'
apply plugin: 'findbugs'

android {
    compileSdkVersion 21
    buildToolsVersion "19.1.0"

    defaultConfig {
        applicationId "com.possebom.coritibawidget"
        minSdkVersion 14
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    lintOptions {
        abortOnError false
    }
}

task findbugs(type: FindBugs) {
    ignoreFailures = true
    classes = fileTree('build/intermediates/classes')
    source = fileTree('src/main/java/')
    classpath = files()
    effort = 'max'
    excludeFilter = file("../findbugs/exclude.xml")

    reports {
        xml.enabled = true
        html.enabled = false
    }
}

task pmd(type: Pmd) {
    ignoreFailures = true
    ruleSets = ["java-basic","java-android", "java-braces", "java-strings", "java-design", "java-unusedcode","java-unnecessary","java-optimizations","java-naming"]
    source = fileTree('src/main/java/')

    reports {
        xml.enabled = true
        html.enabled = false
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:21.0.0'
    compile 'com.jakewharton:butterknife:6.0.0'
    compile 'com.koushikdutta.androidasync:AndroidAsync:1.0.0'
}

exclude.xml

<FindBugsFilter>

    <Match>
        <Class name="~.*R\$.*"/>
    </Match>  

</FindBugsFilter>