nativeloader: Ignore empty java_permitted_path

Passing empty permitted path should result in no-op.
This addresses review comment on CL with commit
f334cbf0

Bug: http://b/28639227
Change-Id: I4a4540e522e90a145a374939921932c86f35e88d
(cherry picked from commit d0b15319)

parent 0756fae4

libnativeloader/native_loader.cpp

+3 −1

Original line number	Diff line number	Diff line
		@@ -76,8 +76,10 @@ class LibraryNamespaces {

		if (java_permitted_path != nullptr) {
		ScopedUtfChars path(env, java_permitted_path);
		if (path.c_str() != nullptr && path.size() > 0) {
		permitted_path = permitted_path + ":" + path.c_str();
		}
		}

		if (!initialized_ && !InitPublicNamespace(library_path.c_str())) {
		return nullptr;