ProcessJarTask decompDeobf = (ProcessJarTask) project.getTasks().getByName("deobfuscateJar");
// ATs from the ExtensionObject
Object[] extAts = getExtension().getAccessTransformers().toArray();
binDeobf.addTransformer(extAts);
decompDeobf.addTransformer(extAts);
// from the resources dirs
{
JavaPluginConvention javaConv = (JavaPluginConvention) project.getConvention().getPlugins().get("java");