Vendor a full copy of common.{collect,base} in JavaBuilder
and make it available to plugins.
@@ -269,6 +269,8 @@ public class BlazeJavacMain {
@Override
protected Class<?> findClass(String name) throws ClassNotFoundException {
if (name.startsWith("com.google.errorprone.")
+ || name.startsWith("com.google.common.collect.")
+ || name.startsWith("com.google.common.base.")
|| name.startsWith("org.checkerframework.dataflow.")
|| name.startsWith("com.sun.source.")
|| name.startsWith("com.sun.tools.")
