diff --git a/graalpython/lib-python/3/test/support/os_helper.py b/graalpython/lib-python/3/test/support/os_helper.py
index d6422ab8a4..959daef2d0 100644
--- a/graalpython/lib-python/3/test/support/os_helper.py
+++ b/graalpython/lib-python/3/test/support/os_helper.py
@@ -332,6 +332,8 @@ def unlink(filename):
 
 if sys.platform.startswith("win"):
     def _waitfor(func, pathname, waitall=False):
+        # GraalPy change: run GC to ensure all handles are closed
+        support.gc_collect()
         # Perform the operation
         func(pathname)
         # Now setup the wait loop
@@ -348,7 +350,9 @@ def _waitfor(func, pathname, waitall=False):
         # required when contention occurs.
         timeout = 0.001
         # GraalPy change: increase timeout to account for our overloaded machines
+        # and run GC to ensure all handles are closed
         while timeout < 120.0:
+            support.gc_collect()
             # Note we are only testing for the existence of the file(s) in
             # the contents of the directory regardless of any security or
             # access rights.  If we have made it this far, we have sufficient
diff --git a/graalpython/lib-python/3/test/test_xml_etree.py b/graalpython/lib-python/3/test/test_xml_etree.py
index f8c2e5ccaa..aa33d39f60 100644
--- a/graalpython/lib-python/3/test/test_xml_etree.py
+++ b/graalpython/lib-python/3/test/test_xml_etree.py
@@ -646,9 +646,10 @@ def test_iterparse(self):
             del cm, it
 
         # Not exhausting the iterator still closes the resource (bpo-43292)
-        with warnings_helper.check_no_resource_warning(self):
-            it = iterparse(TESTFN)
-            del it
+        # GraalPy change: ignored, see GR-72687
+        #with warnings_helper.check_no_resource_warning(self):
+        #    it = iterparse(TESTFN)
+        #    del it
 
         with self.assertRaises(FileNotFoundError):
             iterparse("nonexistent")