PullRequest https://github.com/projectlombok/lombok/pull/2114 tries to fix issue https://github.com/projectlombok/lombok/issues/1976 but causes problems. The problem is that the fail-fast resolver applied by PR 2114 causes the following issue: Given: A.java: public class A { interface Inner { default void example() { lombok.val v = doesNotExist(); } } B b = new B(); } B.java: import com.foo.pkg.A.Inner; public class B implements Inner { void foo() { lombok.val v = doesNotExist(); } } will cause A.java to be parsed such that nothing in it exists, in turn causing B to consider A.Inner to not exist at all, even though the error on the 'implements Inner' line offers 'import Inner' as a quickfix. This quickfix won't, obviously, fix it. In addition, enough 'A refers to B refers to A' loops with errors like this and eclipse 2019-06 will eventually run out of heap and crash. The key commit that attempts to fix 1976 but causes the above issue is commit 089f2ec5f45567c8c12e9d13bf9be8fa5c107c18. The commit that undoes this, re-introducing 1976 but avoiding the problem above, is commit 877a169727a4c8078c43a4465929247c3390c897.