fix: resolve by codifying behavior of filtering
Non-java files shouldn't return from `_filter_java_sources`.
Downstream analyzer caught this.
@@ -43,6 +43,7 @@ def _filter_java_sources(src):
src = src.path
if src.endswith(".java"):
return src
+ return None
def _java_extract_kzip_impl(ctx):
deps = []
