Unnamed module errors

[JordanLongstaff]

I get this error when I incorporate this plugin into my project:

Unable to make field private long java.lang.ref.SoftReference.timestamp accessible: module java.base does not "opens java.lang.ref" to unnamed module @6a6de39c

I tried manually fixing it with an --add-opens flag, but then it gave me a similar error from another module.

Unable to make field private final java.util.concurrent.locks.ReentrantLock$Sync java.util.concurrent.locks.ReentrantLock.sync accessible: module java.base does not "opens java.util.concurrent.locks" to unnamed module @91bc64a