Skip transient recv_into on java posix backend

Author: timfel

graalpython/com.oracle.graal.python.test/src/tests/test_socket.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2020, 2024, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2020, 2025, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # The Universal Permissive License (UPL), Version 1.0
@@ -69,6 +69,12 @@ def test_get_name_info():
 
 
 def test_recv_into():
+    try:
+        if __graalpython__.posix_module_backend() == "java":
+            return  # transient timeouts
+    except NameError:
+        pass # not graalpy
+
     port = None
     event = threading.Event()
     def server():