diff -r 5d306df084eb -r 0f2fe7d37d8c src/os/posix/vm/os_posix.cpp
--- a/src/os/posix/vm/os_posix.cpp	Tue Apr 30 14:49:19 2019 +0200
+++ b/src/os/posix/vm/os_posix.cpp	Mon Jun 17 16:41:38 2019 +0100
@@ -302,6 +302,21 @@
   return ::fdopen(fd, mode);
 }
 
+DIR* os::opendir(const char* dirname) {
+  assert(dirname != NULL, "just checking");
+  return ::opendir(dirname);
+}
+
+struct dirent* os::readdir(DIR* dirp) {
+  assert(dirp != NULL, "just checking");
+  return ::readdir(dirp);
+}
+
+int os::closedir(DIR *dirp) {
+  assert(dirp != NULL, "just checking");
+  return ::closedir(dirp);
+}
+
 // Builds a platform dependent Agent_OnLoad_<lib_name> function name
 // which is used to find statically linked in agents.
 // Parameters: