Merge pull request #869 from matthiasblaesing/com_memory_leak_string_…

…property

Fix memory leak in COMLateBindingObject#getStringProperty

CHANGES.md

@@ -13,6 +13,7 @@ Bug Fixes
 * [#652](https://github.com/java-native-access/jna/issues/652): Dead Lock in class initialization - [@matthiasblaesing](https://github.com/matthiasblaesing).
 * [#843](https://github.com/java-native-access/jna/pull/843): Correctly bind `com.sun.jna.platform.win32.SecBufferDesc` and add convenience binding as `com.sun.jna.platform.win32.SspiUtil.ManagedSecBufferDesc`. Bind SSPI functions `InitializeSecurityContext`, `AcceptSecurityContext`, `QueryCredentialsAttributes`, `QuerySecurityPackageInfo`, `EncryptMessage`, `DecryptMessage`, `MakeSignature`, `VerifySignature` in `com.sun.jna.platform.win32.Secur32` - [@matthiasblaesing](https://github.com/matthiasblaesing).
 * [#863](https://github.com/java-native-access/jna/pull/863): Fix ARM softfloat/hardfloat detection by modifying armSoftFloat condition in ELFAnalyser. Before this fix a softfloat binary could be misdetected as hardfloat. - [@kunkun26](https://github.com/kunkun26).
+* [#867](https://github.com/java-native-access/jna/issues/867): Fix memory leak in `COMLateBindingObject#getStringProperty` - [@matthiasblaesing](https://github.com/matthiasblaesing).
 
 Breaking Changes
 ----------------

contrib/platform/src/com/sun/jna/platform/win32/COM/COMLateBindingObject.java

@@ -217,7 +217,11 @@ protected String getStringProperty(String propertyName) {
         this.oleMethod(OleAuto.DISPATCH_PROPERTYGET, result,
                 this.getIDispatch(), propertyName);
 
-        return result.stringValue();
+        String res = result.stringValue();
+
+        OleAuto.INSTANCE.VariantClear(result);
+
+        return res;
     }
 
     /**