Test.java 23 String f() f() <default> CC CC Cannot annotate with both @Nullable and @NotNull Test.java 23 String f() f() <default> CC CC @NotNull/@Nullable problems Cannot annotate with both @Nullable and @NotNull Test.java 16 C getC2() getC2() <default> CC CC Not annotated method overrides method annotated with @NotNull Test.java 18 void f1(C p) f1(C) <default> CC CC Parameter annotated @NonNull must not override @Nullable parameter Test.java 15 C getC() getC() <default> CC CC Method annotated with @Nullable must not override @NotNull method