Added WBEM methods and a class.

[rchateauneu]

Added methods to IWbemContext, IWbemServices and IWbemClassObject. Added IWbemQualifierSet.

[rchateauneu]

Following this kind suggestion:

https://stackoverflow.com/questions/72265941/calling-iwbemservices-getobject-with-jna-and-java

[matthiasblaesing]

Please have a look at the inline comments.

[matthiasblaesing]

Thank you for the updates. Could you please check if you can create tests for the new methods? You can extend the existing test accordingly: https://github.com/java-native-access/jna/blob/master/contrib/platform/test/com/sun/jna/platform/win32/COM/WbemcliTest.java

[matthiasblaesing]

Thank you. Looks good to me. I pushed the PR to appveyor and that came back clean. The last little nitpick: The new test is locale dependent. Could you please check this patch, which should fix that?

# This patch file was generated by NetBeans IDE
# It uses platform neutral UTF-8 encoding and \n newlines.
--- a/contrib/platform/test/com/sun/jna/platform/win32/COM/WbemcliTest.java
+++ b/contrib/platform/test/com/sun/jna/platform/win32/COM/WbemcliTest.java
@@ -49,6 +49,7 @@
 import com.sun.jna.platform.win32.OaIdl.SAFEARRAY;
 import com.sun.jna.platform.win32.WTypes;
 import com.sun.jna.platform.win32.Kernel32;
+import com.sun.jna.platform.win32.WinNT;
 import com.sun.jna.ptr.IntByReference;
 import java.util.Arrays;
 import java.util.HashSet;
@@ -327,7 +328,7 @@
 
         boolean foundWin32_Process = false;
         try {
-            svc = WbemcliUtil.connectServer(WbemcliUtil.DEFAULT_NAMESPACE);
+            svc = connectServerEnglishLocale(WbemcliUtil.DEFAULT_NAMESPACE);
             enumRes = svc.ExecQuery(
                     "WQL",
                     "SELECT * FROM meta_class",
@@ -428,4 +429,25 @@
         assertEquals(currentPid, pVal.longValue());
     }
 
+    /**
+     * Copy from WbemcliUtil#connectServer with American English selected as
+     * locale.
+     */
+    private static Wbemcli.IWbemServices connectServerEnglishLocale(String namespace) {
+        Wbemcli.IWbemLocator loc = Wbemcli.IWbemLocator.create();
+        if (loc == null) {
+            throw new COMException("Failed to create WbemLocator object.");
 }
+
+        Wbemcli.IWbemServices services = loc.ConnectServer(namespace, null, null, "MS_409", 0, null, null);
+        loc.Release();
+
+        WinNT.HRESULT hres = Ole32.INSTANCE.CoSetProxyBlanket(services, Ole32.RPC_C_AUTHN_WINNT, Ole32.RPC_C_AUTHZ_NONE, null,
+                Ole32.RPC_C_AUTHN_LEVEL_CALL, Ole32.RPC_C_IMP_LEVEL_IMPERSONATE, null, Ole32.EOAC_NONE);
+        if (COMUtils.FAILED(hres)) {
+            services.Release();
+            throw new COMException("Could not set proxy blanket.", hres);
+        }
+        return services;
+    }
+}

It would be nice if you could include this (if it does not cause issues on your locale). If it works, please include it, squash all commits into a single commit, add an entry to CHANGES.md (have a look at the existing entries) with a summary of this change as a new feature.

[matthiasblaesing]

Appveyor and Travis are both happy with this and my local test also worked ok.

Thank you for your contribution!

[rchateauneu]

All the pleasure is for me. Many thanks again for your patience and help.