diff --git a/libsrc/avi/src/org/monte/media/math/Rational.java b/libsrc/avi/src/org/monte/media/math/Rational.java
index 30339aef2..054b4b6b8 100644
--- a/libsrc/avi/src/org/monte/media/math/Rational.java
+++ b/libsrc/avi/src/org/monte/media/math/Rational.java
@@ -328,7 +328,7 @@ public class Rational extends Number {
             }
         }
 
-        // Work with longs if overflow can not occur
+        // Work with longs if overflow cannot occur
         if (abs(this.num) < Integer.MAX_VALUE
                 && abs(this.den) < Integer.MAX_VALUE
                 && abs(that.num) < Integer.MAX_VALUE
@@ -476,7 +476,7 @@ public class Rational extends Number {
      * number</li> <li>As a double number</li> <li>As an integer/integer
      * rational number</li>
      *
-     * @throws NumberFormatException if str can not be parsed.
+     * @throws NumberFormatException if str cannot be parsed.
      */
     public static Rational valueOf(String str) {
         int p = str.indexOf('/');
diff --git a/libsrc/flamingo/src/org/pushingpixels/flamingo/api/bcb/core/BreadcrumbTreeAdapterSelector.java b/libsrc/flamingo/src/org/pushingpixels/flamingo/api/bcb/core/BreadcrumbTreeAdapterSelector.java
index 5449afadc..682d20811 100644
--- a/libsrc/flamingo/src/org/pushingpixels/flamingo/api/bcb/core/BreadcrumbTreeAdapterSelector.java
+++ b/libsrc/flamingo/src/org/pushingpixels/flamingo/api/bcb/core/BreadcrumbTreeAdapterSelector.java
@@ -101,7 +101,7 @@ public class BreadcrumbTreeAdapterSelector extends JBreadcrumbBar<Object> {
 		protected TreeModel treeModel;
 
 		/**
-		 * The corresponding tree adapter. Can not be <code>null</code>.
+		 * The corresponding tree adapter. Cannot be <code>null</code>.
 		 */
 		protected TreeAdapter treeAdapter;
 
@@ -118,7 +118,7 @@ public class BreadcrumbTreeAdapterSelector extends JBreadcrumbBar<Object> {
 		 * @param treeModel
 		 *            The corresponding tree model.
 		 * @param treeAdapter
-		 *            The corresponding tree adapter. Can not be
+		 *            The corresponding tree adapter. Cannot be
 		 *            <code>null</code>.
 		 * @param isRootVisible
 		 *            If <code>true</code>, the first selector shows the tree
@@ -225,7 +225,7 @@ public class BreadcrumbTreeAdapterSelector extends JBreadcrumbBar<Object> {
 	 * @param treeModel
 	 *            Tree model.
 	 * @param treeAdapter
-	 *            Tree adapter. Can not be <code>null</code>.
+	 *            Tree adapter. Cannot be <code>null</code>.
 	 * @param isRootVisible
 	 *            If <code>true</code>, the first selector shows the tree root
 	 *            node. If <code>false</code>, the first selector shows the tree
@@ -259,7 +259,7 @@ public class BreadcrumbTreeAdapterSelector extends JBreadcrumbBar<Object> {
 	 * @param tree
 	 *            Tree.
 	 * @param treeAdapter
-	 *            Tree adapter. Can not be <code>null</code>.
+	 *            Tree adapter. Cannot be <code>null</code>.
 	 */
 	public BreadcrumbTreeAdapterSelector(JTree tree, TreeAdapter treeAdapter) {
 		this(tree.getModel(), treeAdapter, tree.isRootVisible());
diff --git a/libsrc/flamingo/src/org/pushingpixels/flamingo/api/ribbon/JRibbon.java b/libsrc/flamingo/src/org/pushingpixels/flamingo/api/ribbon/JRibbon.java
index 4c8263fb2..f37f05d86 100644
--- a/libsrc/flamingo/src/org/pushingpixels/flamingo/api/ribbon/JRibbon.java
+++ b/libsrc/flamingo/src/org/pushingpixels/flamingo/api/ribbon/JRibbon.java
@@ -340,7 +340,7 @@ public class JRibbon extends JComponent {
      */
     public void removeTask(RibbonTask task) {
         if (task == null) {
-            throw new IllegalArgumentException("RibbonTask can not be null");
+            throw new IllegalArgumentException("RibbonTask cannot be null");
         }
 
         int posOfTask = this.tasks.indexOf(task);
diff --git a/libsrc/flamingo/src/org/pushingpixels/flamingo/api/ribbon/JRibbonComponent.java b/libsrc/flamingo/src/org/pushingpixels/flamingo/api/ribbon/JRibbonComponent.java
index 0575f328b..1b56ae164 100644
--- a/libsrc/flamingo/src/org/pushingpixels/flamingo/api/ribbon/JRibbonComponent.java
+++ b/libsrc/flamingo/src/org/pushingpixels/flamingo/api/ribbon/JRibbonComponent.java
@@ -108,7 +108,7 @@ public class JRibbonComponent extends RichToolTipManager.JTrackableComponent {
 	 * Creates a simple wrapper with no icon and no caption.
 	 * 
 	 * @param mainComponent
-	 *            Wrapped component. Can not be <code>null</code>.
+	 *            Wrapped component. Cannot be <code>null</code>.
 	 * @throws IllegalArgumentException
 	 *             if <code>mainComponent</code> is <code>null</code>.
 	 */
@@ -131,9 +131,9 @@ public class JRibbonComponent extends RichToolTipManager.JTrackableComponent {
 	 * @param icon
 	 *            Wrapper icon. Can be <code>null</code>.
 	 * @param caption
-	 *            Wrapper caption. Can not be <code>null</code>.
+	 *            Wrapper caption. Cannot be <code>null</code>.
 	 * @param mainComponent
-	 *            Wrapped component. Can not be <code>null</code>.
+	 *            Wrapped component. Cannot be <code>null</code>.
 	 * @throws IllegalArgumentException
 	 *             if <code>caption</code> or <code>mainComponent</code> is
 	 *             <code>null</code>.
diff --git a/src/com/sun/jna/platform/win32/WinError.java b/src/com/sun/jna/platform/win32/WinError.java
index b50362687..4e7175526 100644
--- a/src/com/sun/jna/platform/win32/WinError.java
+++ b/src/com/sun/jna/platform/win32/WinError.java
@@ -23407,7 +23407,7 @@ public interface WinError {
     //
     // MessageText:
     //
-    // The log of the subscription is in disabled state, and can not be used to
+    // The log of the subscription is in disabled state, and cannot be used to
     // forward events to. The log must first be enabled before the subscription
     // can be activated.
     //
@@ -40475,7 +40475,7 @@ public interface WinError {
     //
     // MessageText:
     //
-    // Network interface can not process the request because it is being reset.
+    // Network interface cannot process the request because it is being reset.
     //
     int ERROR_NDIS_RESET_IN_PROGRESS = 0x8034000D;
 
@@ -40575,7 +40575,7 @@ public interface WinError {
     //
     // MessageText:
     //
-    // An attempt was made to map a file that can not be found.
+    // An attempt was made to map a file that cannot be found.
     //
     int ERROR_NDIS_FILE_NOT_FOUND = 0x8034001B;
 
@@ -40708,7 +40708,7 @@ public interface WinError {
     //
     // MessageText:
     //
-    // The wireless local area network interface is busy and can not perform the
+    // The wireless local area network interface is busy and cannot perform the
     // requested operation.
     //
     int ERROR_NDIS_DOT11_MEDIA_IN_USE = 0x80342001;