gh-133604: remove deprecated java_ver function (#133888)

Author: makridenko

Doc/deprecations/pending-removal-in-3.15.rst

@@ -51,7 +51,7 @@ Pending removal in Python 3.15
 
 * :mod:`platform`:
 
-  * :func:`~platform.java_ver` has been deprecated since Python 3.13.
+  * :func:`!platform.java_ver` has been deprecated since Python 3.13.
     This function is only useful for Jython support, has a confusing API,
     and is largely untested.
 

Doc/library/platform.rst

@@ -188,24 +188,6 @@ Cross platform
       :attr:`processor` is resolved late instead of immediately.
 
 
-Java platform
--------------
-
-
-.. function:: java_ver(release='', vendor='', vminfo=('','',''), osinfo=('','',''))
-
-   Version interface for Jython.
-
-   Returns a tuple ``(release, vendor, vminfo, osinfo)`` with *vminfo* being a
-   tuple ``(vm_name, vm_release, vm_vendor)`` and *osinfo* being a tuple
-   ``(os_name, os_version, os_arch)``. Values which cannot be determined are set to
-   the defaults given as parameters (which all default to ``''``).
-
-   .. deprecated-removed:: 3.13 3.15
-      It was largely untested, had a confusing API,
-      and was only useful for Jython support.
-
-
 Windows platform
 ----------------
 

Doc/whatsnew/3.13.rst

@@ -1908,7 +1908,7 @@ New Deprecations
 
 * :mod:`platform`:
 
-  * Deprecate :func:`~platform.java_ver`,
+  * Deprecate :func:`!platform.java_ver`,
     to be removed in Python 3.15.
     This function is only useful for Jython support, has a confusing API,
     and is largely untested.

Doc/whatsnew/3.15.rst

@@ -121,6 +121,14 @@ Deprecated
 Removed
 =======
 
+platform
+--------
+
+* Removed the :func:`!platform.java_ver` function,
+  which was deprecated since Python 3.13.
+  (Contributed by Alexey Makridenko in :gh:`133604`.)
+
+
 sysconfig
 ---------
 

Lib/platform.py

@@ -29,7 +29,7 @@
 #
 #    History:
 #
-#    <see CVS and SVN checkin messages for history>
+#    <see checkin messages for history>
 #
 #    1.0.9 - added invalidate_caches() function to invalidate cached values
 #    1.0.8 - changed Windows support to read version from kernel32.dll
@@ -110,7 +110,7 @@
 
 """
 
-__version__ = '1.0.9'
+__version__ = '1.1.0'
 
 import collections
 import os
@@ -528,53 +528,6 @@ def ios_ver(system="", release="", model="", is_simulator=False):
     return IOSVersionInfo(system, release, model, is_simulator)
 
 
-def _java_getprop(name, default):
-    """This private helper is deprecated in 3.13 and will be removed in 3.15"""
-    from java.lang import System
-    try:
-        value = System.getProperty(name)
-        if value is None:
-            return default
-        return value
-    except AttributeError:
-        return default
-
-def java_ver(release='', vendor='', vminfo=('', '', ''), osinfo=('', '', '')):
-
-    """ Version interface for Jython.
-
-        Returns a tuple (release, vendor, vminfo, osinfo) with vminfo being
-        a tuple (vm_name, vm_release, vm_vendor) and osinfo being a
-        tuple (os_name, os_version, os_arch).
-
-        Values which cannot be determined are set to the defaults
-        given as parameters (which all default to '').
-
-    """
-    import warnings
-    warnings._deprecated('java_ver', remove=(3, 15))
-    # Import the needed APIs
-    try:
-        import java.lang  # noqa: F401
-    except ImportError:
-        return release, vendor, vminfo, osinfo
-
-    vendor = _java_getprop('java.vendor', vendor)
-    release = _java_getprop('java.version', release)
-    vm_name, vm_release, vm_vendor = vminfo
-    vm_name = _java_getprop('java.vm.name', vm_name)
-    vm_vendor = _java_getprop('java.vm.vendor', vm_vendor)
-    vm_release = _java_getprop('java.vm.version', vm_release)
-    vminfo = vm_name, vm_release, vm_vendor
-    os_name, os_version, os_arch = osinfo
-    os_arch = _java_getprop('java.os.arch', os_arch)
-    os_name = _java_getprop('java.os.name', os_name)
-    os_version = _java_getprop('java.os.version', os_version)
-    osinfo = os_name, os_version, os_arch
-
-    return release, vendor, vminfo, osinfo
-
-
 AndroidVer = collections.namedtuple(
     "AndroidVer", "release api_level manufacturer model device is_emulator")
 
@@ -1034,13 +987,6 @@ def uname():
                     version = '16bit'
             system = 'Windows'
 
-        elif system[:4] == 'java':
-            release, vendor, vminfo, osinfo = java_ver()
-            system = 'Java'
-            version = ', '.join(vminfo)
-            if not version:
-                version = vendor
-
     # System specific extensions
     if system == 'OpenVMS':
         # OpenVMS seems to have release and version mixed up
@@ -1370,15 +1316,6 @@ def platform(aliased=False, terse=False):
         platform = _platform(system, release, machine, processor,
                              'with',
                              libcname+libcversion)
-    elif system == 'Java':
-        # Java platforms
-        r, v, vminfo, (os_name, os_version, os_arch) = java_ver()
-        if terse or not os_name:
-            platform = _platform(system, release, version)
-        else:
-            platform = _platform(system, release, version,
-                                 'on',
-                                 os_name, os_version, os_arch)
 
     else:
         # Generic handler

Lib/test/test_platform.py

@@ -383,15 +383,6 @@ def raises_oserror(*a):
                 finally:
                     platform._uname_cache = None
 
-    def test_java_ver(self):
-        import re
-        msg = re.escape(
-            "'java_ver' is deprecated and slated for removal in Python 3.15"
-        )
-        with self.assertWarnsRegex(DeprecationWarning, msg):
-            res = platform.java_ver()
-        self.assertEqual(len(res), 4)
-
     @unittest.skipUnless(support.MS_WINDOWS, 'This test only makes sense on Windows')
     def test_win32_ver(self):
         release1, version1, csd1, ptype1 = 'a', 'b', 'c', 'd'

Misc/NEWS.d/next/Library/2025-05-11-12-56-52.gh-issue-133604.kFxhc8.rst

@@ -0,0 +1 @@
+Remove :func:`!platform.java_ver` which was deprecated since Python 3.13.