Fix bug that was failed to create Null annotations.

Test: m
out/soong/.intermediates/libcore/gen-ojluni-jaif-annotated-srcs/gen/ojluni_jaif_annotated_srcs.srcjar
&& unzip the .srcjar && diff each generated java file with the annotated class at
out/target/common/obj/JAVA_LIBRARIES/core-oj_intermediates/annotated/java/lang/

Bug: b/70351683
Change-Id: Ia4ec1b93c1800a108cfe42a2344a98349cf4cbd0
1 file changed