Apply generic definitions wherever applicable

CHANGES.md

@@ -31,6 +31,7 @@ Features
 * [#567](https://github.com/java-native-access/jna/pull/567): Added `PrintWindow`, `IsWindowEnabled`, `IsWindow`, `FindWindowEx`, `GetAncestor`, `GetCursorPos`, `SetCursorPos`, `SetWinEventHook`, `UnhookWinEvent`, `CopyIcon`, and `GetClassLong` to `com.sun.jna.platform.win32.User32` and supporting constants to `com.sun.jna.platform.win32.WinUser` - [@mlfreeman2](https://github.com/mlfreeman2).
 * [#573](https://github.com/java-native-access/jna/pull/573): Added `EnumProcessModules`, `GetModuleInformation`, and `GetProcessImageFileName` to `com.sun.jna.platform.win32.Psapi` and added `ExtractIconEx` to `com.sun.jna.platform.win32.Shell32` - [@mlfreeman2](https://github.com/mlfreeman2).
 * [#574](https://github.com/java-native-access/jna/pull/574): Using static final un-modifiable List of field names for structure(s) [@lgoldstein](https://github.com/lgoldstein)
+* [#577](https://github.com/java-native-access/jna/pull/577): Apply generic definitions wherever applicable [@lgoldstein](https://github.com/lgoldstein)
 
 Bug Fixes
 ---------

contrib/platform/src/com/sun/jna/platform/FileMonitor.java

@@ -79,7 +79,7 @@ public void addWatch(File dir, int mask) throws IOException {
     }
 
     public void addWatch(File dir, int mask, boolean recursive) throws IOException {
-        watched.put(dir, new Integer(mask));
+        watched.put(dir, Integer.valueOf(mask));
         watch(dir, mask, recursive);
     }
 

contrib/platform/src/com/sun/jna/platform/win32/Advapi32Util.java

@@ -131,12 +131,12 @@ public static String getUserName() {
 
 		if (!result) {
 			switch (Kernel32.INSTANCE.GetLastError()) {
-			case W32Errors.ERROR_INSUFFICIENT_BUFFER:
-				buffer = new char[len.getValue()];
-				break;
+    			case W32Errors.ERROR_INSUFFICIENT_BUFFER:
+    				buffer = new char[len.getValue()];
+    				break;
 
-			default:
-				throw new Win32Exception(Native.getLastError());
+    			default:
+    				throw new Win32Exception(Native.getLastError());
 			}
 
 			result = Advapi32.INSTANCE.GetUserNameW(buffer, len);
@@ -975,9 +975,9 @@ public static Object registryGetValue(HKEY hkKey, String subKey,
 		byteData.write(0, lpData, 0, lpcbData.getValue());
 
 		if (lpType.getValue() == WinNT.REG_DWORD) {
-			result = new Integer(byteData.getInt(0));
+			result = Integer.valueOf(byteData.getInt(0));
 		} else if (lpType.getValue() == WinNT.REG_QWORD) {
-			result = new Long(byteData.getLong(0));
+			result = Long.valueOf(byteData.getLong(0));
 		} else if (lpType.getValue() == WinNT.REG_BINARY) {
 			result = byteData.getByteArray(0, lpcbData.getValue());
 		} else if ((lpType.getValue() == WinNT.REG_SZ)

contrib/platform/src/com/sun/jna/platform/win32/COM/tlb/imp/TlbCmdlineArgs.java

@@ -23,7 +23,7 @@ public TlbCmdlineArgs(String[] args) {
 
     public int getIntParam(String key) {
         String param = this.getRequiredParam(key);
-        return new Integer(param).intValue();
+        return Integer.parseInt(param);
     }
 
     public String getParam(String key) {

contrib/platform/src/com/sun/jna/platform/win32/COM/tlb/imp/TlbFunctionVTable.java

@@ -20,14 +20,14 @@
 // TODO: Auto-generated Javadoc
 /**
  * The Class TlbFunction.
- * 
+ *
  * @author Tobias Wolf, [email protected]
  */
 public class TlbFunctionVTable extends TlbAbstractMethod {
 
     /**
      * Instantiates a new tlb function.
-     * 
+     *
      * @param index
      *            the index
      * @param typeLibUtil
@@ -71,11 +71,6 @@ public TlbFunctionVTable(int count, int index, TypeLibUtil typeLibUtil,
         this.replaceVariable("functionCount", String.valueOf(count));
     }
 
-    /*
-     * (non-Javadoc)
-     * 
-     * @see com.sun.jna.platform.win32.COM.tlb.imp.TlbBase#getClassTemplate()
-     */
     @Override
     protected String getClassTemplate() {
         return "com/sun/jna/platform/win32/COM/tlb/imp/TlbFunctionVTable.template";

contrib/platform/src/com/sun/jna/platform/win32/COM/util/ProxyObject.java

@@ -74,10 +74,10 @@ public ProxyObject(Class<?> theInterface, IDispatch rawDispatch, Factory factory
 		factory.register(this);
 	}
 
-	/** when proxy is created for arguments on a call back, they are already on the 
+	/** when proxy is created for arguments on a call back, they are already on the
 	 * com thread, and hence calling 'getUnknownId' will not work as it uses the ComThread
 	 * however, the unknown pointer value is passed in;
-	 * 
+	 *
 	 * @param theInterface
 	 * @param unknownId
 	 * @param rawDispatch
@@ -94,7 +94,7 @@ public ProxyObject(Class<?> theInterface, IDispatch rawDispatch, Factory factory
 		int n = this.rawDispatch.AddRef();
 		factory.register(this);
 	}
-	
+
 	// cached value of the IUnknown interface pointer
 	// Rules of COM state that querying for the IUnknown interface must return
 	// an identical pointer value
@@ -108,15 +108,15 @@ long getUnknownId() {
 
 				Thread current = Thread.currentThread();
 				String tn = current.getName();
-				
+
 				HRESULT hr = this.comThread.execute(new Callable<HRESULT>() {
 					@Override
 					public HRESULT call() throws Exception {
 						IID iid = com.sun.jna.platform.win32.COM.IUnknown.IID_IUNKNOWN;
 						return ProxyObject.this.getRawDispatch().QueryInterface(new REFIID(iid), ppvObject);
 					}
 				});
-				
+
 				if (WinNT.S_OK.equals(hr)) {
 					Dispatch dispatch = new Dispatch(ppvObject.getValue());
 					this.unknownId = Pointer.nativeValue(dispatch.getPointer());
@@ -159,7 +159,8 @@ public void dispose(int r) {
 	ComThread comThread;
 	com.sun.jna.platform.win32.COM.IDispatch rawDispatch;
 
-	public com.sun.jna.platform.win32.COM.IDispatch getRawDispatch() {
+	@Override
+    public com.sun.jna.platform.win32.COM.IDispatch getRawDispatch() {
 		return this.rawDispatch;
 	}
 
@@ -168,12 +169,13 @@ public com.sun.jna.platform.win32.COM.IDispatch getRawDispatch() {
 	/*
 	 * The QueryInterface rule state that 'a call to QueryInterface with
 	 * IID_IUnknown must always return the same physical pointer value.'
-	 * 
+	 *
 	 * [http://msdn.microsoft.com/en-us/library/ms686590%28VS.85%29.aspx]
-	 * 
+	 *
 	 * therefore we can compare the pointers
 	 */
-	public boolean equals(Object arg) {
+	@Override
+    public boolean equals(Object arg) {
 		if (null == arg) {
 			return false;
 		} else if (arg instanceof ProxyObject) {
@@ -200,9 +202,8 @@ public boolean equals(Object arg) {
 
 	@Override
 	public int hashCode() {
-		return Long.valueOf(this.getUnknownId()).intValue();
-		// this returns the native pointer peer value
-		// return this.getRawDispatch().hashCode();
+	    long id = this.getUnknownId();
+		return (int) ((id >>> 32) & 0xFFFFFFFF) + (int) (id & 0xFFFFFFFF);
 	}
 
 	@Override
@@ -379,7 +380,7 @@ public <T> T getProperty(Class<T> returnType, String name, Object... args) {
 		COMUtils.checkRC(hr);
 		Object jobj = Convert.toJavaObject(result);
 		if (IComEnum.class.isAssignableFrom(returnType)) {
-			return (T) Convert.toComEnum((Class<? extends IComEnum>) returnType, jobj);
+			return returnType.cast(Convert.toComEnum((Class<? extends IComEnum>) returnType, jobj));
 		}
 		if (jobj instanceof IDispatch) {
 			IDispatch d = (IDispatch) jobj;
@@ -389,7 +390,7 @@ public <T> T getProperty(Class<T> returnType, String name, Object... args) {
 			int n = d.Release();
 			return t;
 		}
-		return (T) jobj;
+		return returnType.cast(jobj);
 	}
 
 	@Override
@@ -409,7 +410,7 @@ public <T> T invokeMethod(Class<T> returnType, String name, Object... args) {
 
 		Object jobj = Convert.toJavaObject(result);
 		if (IComEnum.class.isAssignableFrom(returnType)) {
-			return (T) Convert.toComEnum((Class<? extends IComEnum>) returnType, jobj);
+			return returnType.cast(Convert.toComEnum((Class<? extends IComEnum>) returnType, jobj));
 		}
 		if (jobj instanceof IDispatch) {
 			IDispatch d = (IDispatch) jobj;
@@ -419,7 +420,7 @@ public <T> T invokeMethod(Class<T> returnType, String name, Object... args) {
 			int n = d.Release();
 			return t;
 		}
-		return (T) jobj;
+		return returnType.cast(jobj);
 	}
 
 	@Override

contrib/platform/src/com/sun/jna/platform/win32/WinDef.java

@@ -237,7 +237,7 @@ public class LONGByReference extends ByReference {
          * Instantiates a new LONG by reference.
          */
         public LONGByReference() {
-            this(new LONG(0));
+            this(new LONG(0L));
         }
 
         /**