Improve build caching by reducing path sensitivity where appropriate

buildSrc/src/main/groovy/package-list.groovy

@@ -9,7 +9,9 @@ import org.gradle.api.tasks.*
 @CacheableTask
 class CreatePackageList extends org.gradle.api.DefaultTask {
 
+	@PathSensitive(PathSensitivity.RELATIVE)
 	@Input Object sourceSet
+
 	@OutputFile File packageList = new File("$temporaryDir/package-list")
 
 	@TaskAction

com.ibm.wala.dalvik.test/build.gradle

@@ -63,6 +63,7 @@ class InstallAndroidSdkComponent extends DefaultTask {
 		return new File(sdkRoot, subpath)
 	}
 
+	@PathSensitive(PathSensitivity.RELATIVE)
 	@InputDirectory getTools() {
 		return getSdkFile('tools')
 	}