Eclipse + Gradle Multi Project (flat layout)

build.gradle

apply plugin: 'eclipse'

subprojects {
    
    apply plugin: 'java'
    apply plugin: 'eclipse-wtp'

    jdkVersion = 1.7
    sourceCompatibility = jdkVersion
    targetCompatibility = jdkVersion
    version = '0.1'
    vendor = 'usopla.com'

    repositories {
       mavenCentral()
    }

    dependencies {
        compile group: 'com.google.guava', name: 'guava', version: '13.0.1'
        testCompile 'junit:junit:4.8.2'
    }

    jar {
        manifest.attributes provider: 'gradle'
        manifest.attributes 'Implementation-Vendor-Id': vendor
        manifest.attributes 'Implementation-Vendor': vendor
        manifest.attributes 'Implementation-Version': version
    }

    eclipse {

      classpath {
        file {
          whenMerged { classpath ->
            classpath.configure classpath.entries.grep { entry ->
              !(entry instanceof org.gradle.plugins.ide.eclipse.model.Library)
            }
          }
        }
      }

    }

    task mkdirs << {
      ["src/main/java", "src/main/resources", "src/test/java", "src/test/resources"].each {
        def path = "${projectDir}/${it}"
        ant.mkdir(dir: path)
        ant.touch(file: "${path}/.gitkeep")
      }
    }


}

task wrapper(type: Wrapper) {
    gradleVeresion = '1.4'
}

build.gradle-web

apply plugin: 'war'

dependencies {
  providedCompile 'javax.servlet:servlet-api:2.5'
  compile project(':api')
  compile project(':service')
}

war {
    manifest.attributes = jar.manifest.attributes
    manifest.attributes 'Implementation-Title': 'web'
}

settings.gradle

includeFlat "util", "model", "persistence", "service", "api", "web"