Implemented default AWT implementation of Sys.getClipboard()

src/java/org/lwjgl/Sys.java

@@ -266,6 +266,20 @@ public final class Sys {
 	 * Otherwise we return a String, which may be the empty string "".
 	 * @return a String, or null if there is no system clipboard.
 	 */
-	public static native String getClipboard();
-		
+	public static String getClipboard() {
+		try {
+			java.awt.datatransfer.Clipboard clipboard = java.awt.Toolkit.getDefaultToolkit().getSystemClipboard();
+			java.awt.datatransfer.Transferable transferable = clipboard.getContents(null);
+			if (transferable.isDataFlavorSupported(java.awt.datatransfer.DataFlavor.stringFlavor)) {
+				return (String)transferable.getTransferData(java.awt.datatransfer.DataFlavor.stringFlavor);
+			} else {
+				return null;
+			}
+		} catch (Exception e) {
+			// ignore exception and use native implementation
+			return nGetClipboard();
+		}
+	}
+
+	private static native String nGetClipboard();
 } 

src/native/common/org_lwjgl_Sys.h

@@ -75,8 +75,12 @@ JNIEXPORT void JNICALL Java_org_lwjgl_Sys_nAlert
 JNIEXPORT void JNICALL Java_org_lwjgl_Sys_nOpenURL
   (JNIEnv *, jclass, jstring);
 
-
-JNIEXPORT jstring JNICALL Java_org_lwjgl_Sys_getClipboard
+/*
+ * Class:     org_lwjgl_Sys
+ * Method:    nGetClipboard
+ * Signature: ()Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_org_lwjgl_Sys_nGetClipboard
   (JNIEnv *, jclass);
 
 #ifdef __cplusplus

src/native/linux/org_lwjgl_Sys.cpp

@@ -167,7 +167,7 @@ JNIEXPORT void JNICALL Java_org_lwjgl_Sys_nOpenURL
 }
 
 
-JNIEXPORT jstring JNICALL Java_org_lwjgl_Sys_getClipboard
+JNIEXPORT jstring JNICALL Java_org_lwjgl_Sys_nGetClipboard
   (JNIEnv * env, jclass clazz)
 {
 	return NULL;

src/native/linux/org_lwjgl_opengl_Display.cpp

@@ -105,7 +105,10 @@ bool checkXError(JNIEnv *env) {
 	XSync(getDisplay(), False);
 	if (async_x_error) {
 		async_x_error = false;
-		throwException(env, error_message);
+		if (env != NULL)
+			throwException(env, error_message);
+		else
+			printfDebug(error_message);
 		return false;
 	} else
 		return true;
@@ -132,7 +135,10 @@ Display *incDisplay(JNIEnv *env) {
 		XSetErrorHandler(errorHandler);
 		display_connection = XOpenDisplay(NULL);
 		if (display_connection == NULL) {
-			throwException(env, "Could not open X display");
+			if (env != NULL)
+				throwException(env, "Could not open X display connection");
+			else
+				printfDebug("Could not open X display connection\n");
 			return NULL;
 		}
 		warp_atom = XInternAtom(getDisplay(), "ignore_warp_atom", False);

src/native/win32/org_lwjgl_Sys.cpp

@@ -202,7 +202,7 @@ const void * getClipboard(int type)
 
 }
 
-JNIEXPORT jstring JNICALL Java_org_lwjgl_Sys_getClipboard
+JNIEXPORT jstring JNICALL Java_org_lwjgl_Sys_nGetClipboard
   (JNIEnv * env, jclass clazz)
 {
 	// Check to see if there's text available in the clipboard