diff --git a/contrib/src/java/org/jdom2/contrib/perf/SavingVerifier.java b/contrib/src/java/org/jdom2/contrib/perf/SavingVerifier.java
index 7068f2d74..27631829d 100644
--- a/contrib/src/java/org/jdom2/contrib/perf/SavingVerifier.java
+++ b/contrib/src/java/org/jdom2/contrib/perf/SavingVerifier.java
@@ -261,7 +261,7 @@ public static String checkCharacterData(final String text) {
 					lowx = false;
 				} else {
 					// Likely this character can't be easily displayed
-					// because it's a control so we use it's hexadecimal 
+					// because it's a control so we use its hexadecimal 
 					// representation in the reason.
 					return String.format("0x%04x is not a legal XML character",
 							(int)text.charAt(i));
diff --git a/core/src/java/org/jdom2/Attribute.java b/core/src/java/org/jdom2/Attribute.java
index 2c857e026..2224dd415 100644
--- a/core/src/java/org/jdom2/Attribute.java
+++ b/core/src/java/org/jdom2/Attribute.java
@@ -719,7 +719,7 @@ public boolean getBooleanValue() throws DataConversionException {
 	 * 'default' Namespace that is not the empty Namespace (e.g.
 	 * xmlns="someurl") and this Attribute is also in the default Namespace (has
 	 * no prefix - but for Attributes that means the Namespace URL is ""), then
-	 * this Attribute has a different namespace scope from it's parent Element
+	 * this Attribute has a different namespace scope from its parent Element
 	 * because it does not include the 'someurl' Namespace.
 	 * <p>
 	 * In the above conditions (no-prefix Attribute in an Element with a
diff --git a/core/src/java/org/jdom2/CDATA.java b/core/src/java/org/jdom2/CDATA.java
index e33e0608c..e9c511287 100644
--- a/core/src/java/org/jdom2/CDATA.java
+++ b/core/src/java/org/jdom2/CDATA.java
@@ -86,7 +86,7 @@ protected CDATA() {
 
 	/**
 	 * This constructor creates a new <code>CDATA</code> node, with the
-	 * supplied string value as it's character content.
+	 * supplied string value as its character content.
 	 *
 	 * @param string the node's character content.
 	 * @throws IllegalDataException if <code>str</code> contains an 
diff --git a/core/src/java/org/jdom2/DescendantIterator.java b/core/src/java/org/jdom2/DescendantIterator.java
index 7f1245a32..c5fb9eaff 100644
--- a/core/src/java/org/jdom2/DescendantIterator.java
+++ b/core/src/java/org/jdom2/DescendantIterator.java
@@ -177,7 +177,7 @@ public Content next() {
 
 	/**
 	 * Detaches the last {@link org.jdom2.Content} returned by the last call to
-	 * next from it's parent.  <b>Note</b>: this <b>does not</b> affect
+	 * next from its parent.  <b>Note</b>: this <b>does not</b> affect
 	 * iteration and all children, siblings, and any node following the
 	 * removed node (in document order) will be visited.
 	 */
diff --git a/core/src/java/org/jdom2/Document.java b/core/src/java/org/jdom2/Document.java
index f7cbb06a6..2ab7f7b0e 100644
--- a/core/src/java/org/jdom2/Document.java
+++ b/core/src/java/org/jdom2/Document.java
@@ -749,7 +749,7 @@ public Parent getParent() {
 
 	/**
 	 * Always returns this Document Instance
-	 * @return 'this' because this Document is it's own Document
+	 * @return 'this' because this Document is its own Document
 	 */
 	@Override
 	public Document getDocument() {
diff --git a/core/src/java/org/jdom2/Element.java b/core/src/java/org/jdom2/Element.java
index 7f547e07d..0bd7f1996 100644
--- a/core/src/java/org/jdom2/Element.java
+++ b/core/src/java/org/jdom2/Element.java
@@ -1707,9 +1707,9 @@ public boolean removeChildren(final String cname, final Namespace ns) {
 	 * encountered for this Element then {@link Namespace#NO_NAMESPACE} is
 	 * included.
 	 * </ul> 
-	 * The Element's Namespace scope consist of it's inherited Namespaces and
+	 * The Element's Namespace scope consist of its inherited Namespaces and
 	 * any modifications to that scope derived from the Element itself. If the
-	 * element is detached then it's inherited scope consists of just 
+	 * element is detached then its inherited scope consists of just 
 	 * If an element has no parent then 
 	 * <p>
 	 * Note that the Element's Namespace will always be reported first.
diff --git a/core/src/java/org/jdom2/Parent.java b/core/src/java/org/jdom2/Parent.java
index c241d10b0..9957aabad 100644
--- a/core/src/java/org/jdom2/Parent.java
+++ b/core/src/java/org/jdom2/Parent.java
@@ -195,9 +195,9 @@ public interface Parent extends Cloneable, NamespaceAware, Serializable {
 	Content removeContent(int index);
 
 	/**
-	 * Obtain a deep, unattached copy of this parent and it's children.
+	 * Obtain a deep, unattached copy of this parent and its children.
 	 *
-	 * @return a deep copy of this parent and it's children.
+	 * @return a deep copy of this parent and its children.
 	 */
 	Object clone();
 
diff --git a/core/src/java/org/jdom2/Text.java b/core/src/java/org/jdom2/Text.java
index be2e3998a..8f242ced3 100644
--- a/core/src/java/org/jdom2/Text.java
+++ b/core/src/java/org/jdom2/Text.java
@@ -100,7 +100,7 @@ protected Text() {
 
 	/**
 	 * This constructor creates a new <code>Text</code> node, with the
-	 * supplied string value as it's character content.
+	 * supplied string value as its character content.
 	 *
 	 * @param str the node's character content.
 	 * @throws IllegalDataException if <code>str</code> contains an
diff --git a/core/src/java/org/jdom2/input/SAXBuilder.java b/core/src/java/org/jdom2/input/SAXBuilder.java
index 9bff5bde3..d7105ec66 100644
--- a/core/src/java/org/jdom2/input/SAXBuilder.java
+++ b/core/src/java/org/jdom2/input/SAXBuilder.java
@@ -609,7 +609,7 @@ public XMLFilter getXMLFilter() {
 	 * XMLReaders that may be created, and these may (depending on SAXBuilder
 	 * usage) be accessed concurrently. It is the responsibility of the JDOM
 	 * user to ensure that if the XMLFilter is not thread-safe then neither the
-	 * SAXBuilder nor any of it's SAXEngines are accessed concurrently.
+	 * SAXBuilder nor any of its SAXEngines are accessed concurrently.
 	 * 
 	 * @param xmlFilter
 	 *        the XMLFilter to use
diff --git a/core/src/java/org/jdom2/located/LocatedCDATA.java b/core/src/java/org/jdom2/located/LocatedCDATA.java
index 7b3f02722..05163e460 100644
--- a/core/src/java/org/jdom2/located/LocatedCDATA.java
+++ b/core/src/java/org/jdom2/located/LocatedCDATA.java
@@ -71,7 +71,7 @@ public class LocatedCDATA extends CDATA implements Located {
 
 	/**
 	 * This constructor creates a new <code>LocatedCDATA</code> node, with the
-	 * supplied string value as it's character content.
+	 * supplied string value as its character content.
 	 *
 	 * @param str the node's character content.
 	 * @throws IllegalDataException if <code>str</code> contains an
diff --git a/core/src/java/org/jdom2/located/LocatedText.java b/core/src/java/org/jdom2/located/LocatedText.java
index 251d9777d..3934b7afa 100644
--- a/core/src/java/org/jdom2/located/LocatedText.java
+++ b/core/src/java/org/jdom2/located/LocatedText.java
@@ -68,7 +68,7 @@ public class LocatedText extends Text implements Located {
 
 	/**
 	 * This constructor creates a new <code>Text</code> node, with the
-	 * supplied string value as it's character content.
+	 * supplied string value as its character content.
 	 *
 	 * @param str the node's character content.
 	 * @throws IllegalDataException if <code>str</code> contains an
diff --git a/core/src/java/org/jdom2/output/StAXEventOutputter.java b/core/src/java/org/jdom2/output/StAXEventOutputter.java
index dc3319691..42f6675f5 100644
--- a/core/src/java/org/jdom2/output/StAXEventOutputter.java
+++ b/core/src/java/org/jdom2/output/StAXEventOutputter.java
@@ -260,7 +260,7 @@ public void setFormat(Format newFormat) {
 	/**
 	 * Returns the current format in use by the StAXStreamOutputter. Note the Format
 	 * object returned is <b>not</b> a clone of the one used internally, thus,
-	 * an StAXStreamOutputter instance is able to have it's Format changed by changing
+	 * an StAXStreamOutputter instance is able to have its Format changed by changing
 	 * the settings on the Format instance returned by this method.
 	 * 
 	 * @return the current Format instance used by this StAXStreamOutputter.
diff --git a/core/src/java/org/jdom2/output/StAXStreamOutputter.java b/core/src/java/org/jdom2/output/StAXStreamOutputter.java
index 54d01dd8d..8f12d3b3c 100644
--- a/core/src/java/org/jdom2/output/StAXStreamOutputter.java
+++ b/core/src/java/org/jdom2/output/StAXStreamOutputter.java
@@ -236,7 +236,7 @@ public void setFormat(Format newFormat) {
 	/**
 	 * Returns the current format in use by the StAXStreamOutputter. Note the Format
 	 * object returned is <b>not</b> a clone of the one used internally, thus,
-	 * an StAXStreamOutputter instance is able to have it's Format changed by changing
+	 * an StAXStreamOutputter instance is able to have its Format changed by changing
 	 * the settings on the Format instance returned by this method.
 	 * 
 	 * @return the current Format instance used by this StAXStreamOutputter.
diff --git a/core/src/java/org/jdom2/output/StAXStreamReader.java b/core/src/java/org/jdom2/output/StAXStreamReader.java
index 6474c1985..5419e7b8e 100644
--- a/core/src/java/org/jdom2/output/StAXStreamReader.java
+++ b/core/src/java/org/jdom2/output/StAXStreamReader.java
@@ -232,7 +232,7 @@ public void setFormat(Format newFormat) {
 	/**
 	 * Returns the current format in use by the XMLOutputter. Note the Format
 	 * object returned is <b>not</b> a clone of the one used internally, thus,
-	 * an XMLOutputter instance is able to have it's Format changed by changing
+	 * an XMLOutputter instance is able to have its Format changed by changing
 	 * the settings on the Format instance returned by this method.
 	 * 
 	 * @return the current Format instance used by this XMLOutputter.
diff --git a/core/src/java/org/jdom2/output/XMLOutputter.java b/core/src/java/org/jdom2/output/XMLOutputter.java
index db64f88b1..4f7af03e2 100644
--- a/core/src/java/org/jdom2/output/XMLOutputter.java
+++ b/core/src/java/org/jdom2/output/XMLOutputter.java
@@ -341,7 +341,7 @@ public void setFormat(Format newFormat) {
 	/**
 	 * Returns the current format in use by the XMLOutputter. Note the Format
 	 * object returned is <b>not</b> a clone of the one used internally, thus,
-	 * an XMLOutputter instance is able to have it's Format changed by changing
+	 * an XMLOutputter instance is able to have its Format changed by changing
 	 * the settings on the Format instance returned by this method.
 	 * 
 	 * @return the current Format instance used by this XMLOutputter.
diff --git a/core/src/java/org/jdom2/output/support/AbstractFormattedWalker.java b/core/src/java/org/jdom2/output/support/AbstractFormattedWalker.java
index 7400176ed..f0db71a8a 100644
--- a/core/src/java/org/jdom2/output/support/AbstractFormattedWalker.java
+++ b/core/src/java/org/jdom2/output/support/AbstractFormattedWalker.java
@@ -70,7 +70,7 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * <p>
  * The JDOM content can be loosely categorised in to 'Text-like' content
  * (consisting of Text, CDATA, and EntityRef), and everything else. This
- * distinction is significant for for this class and it's sub-classes.
+ * distinction is significant for for this class and its sub-classes.
  * <p>
  * There will be text manipulation, and some (but not necessarily 
  * all) Text-like content will be returned as text() instead of next().
diff --git a/core/src/java/org/jdom2/output/support/AbstractStAXEventProcessor.java b/core/src/java/org/jdom2/output/support/AbstractStAXEventProcessor.java
index 827e479fb..44d3dbe6c 100644
--- a/core/src/java/org/jdom2/output/support/AbstractStAXEventProcessor.java
+++ b/core/src/java/org/jdom2/output/support/AbstractStAXEventProcessor.java
@@ -500,7 +500,7 @@ protected void printDocType(final XMLEventConsumer out, final FormatStack fstack
 		}
 		sw.write(">");
 		
-		// DocType does not write it's own EOL
+		// DocType does not write its own EOL
 		// for compatibility reasons. Only
 		// when output from inside a Content set.
 		// write(out, fstack.getLineSeparator());
diff --git a/core/src/java/org/jdom2/output/support/AbstractStAXStreamProcessor.java b/core/src/java/org/jdom2/output/support/AbstractStAXStreamProcessor.java
index bc22793c8..4933f623f 100644
--- a/core/src/java/org/jdom2/output/support/AbstractStAXStreamProcessor.java
+++ b/core/src/java/org/jdom2/output/support/AbstractStAXStreamProcessor.java
@@ -438,7 +438,7 @@ protected void printDocType(final XMLStreamWriter out, final FormatStack fstack,
 		}
 		sw.write(">");
 		
-		// DocType does not write it's own EOL
+		// DocType does not write its own EOL
 		// for compatibility reasons. Only
 		// when output from inside a Content set.
 		// write(out, fstack.getLineSeparator());
diff --git a/core/src/java/org/jdom2/output/support/FormatStack.java b/core/src/java/org/jdom2/output/support/FormatStack.java
index ff9961dfc..e9755da63 100644
--- a/core/src/java/org/jdom2/output/support/FormatStack.java
+++ b/core/src/java/org/jdom2/output/support/FormatStack.java
@@ -66,7 +66,7 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * <p>
  * This class is intended as a working-class for in the various outputter
  * implementations. It is inly public so that people extending the
- * Abstract*Processor classes can take advantage of it's functionality.
+ * Abstract*Processor classes can take advantage of its functionality.
  * <p>
  * The value this class adds is:
  * <ul>
@@ -472,4 +472,4 @@ public void pop() {
 		depth--;
 	}
 
-}
\ No newline at end of file
+}
diff --git a/core/src/java/org/jdom2/output/support/WalkerPRESERVE.java b/core/src/java/org/jdom2/output/support/WalkerPRESERVE.java
index 4d86826e5..938997b9a 100644
--- a/core/src/java/org/jdom2/output/support/WalkerPRESERVE.java
+++ b/core/src/java/org/jdom2/output/support/WalkerPRESERVE.java
@@ -61,7 +61,7 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 import org.jdom2.Content;
 
 /**
- * This Walker implementation walks a list of Content in it's original RAW
+ * This Walker implementation walks a list of Content in its original RAW
  * format. There is no text manipulation, and all content will be returned as
  * the input type. In other words, next() will never be null, and text() will
  * always be null.
diff --git a/core/src/java/org/jdom2/util/NamespaceStack.java b/core/src/java/org/jdom2/util/NamespaceStack.java
index 909447f2e..941d240e4 100644
--- a/core/src/java/org/jdom2/util/NamespaceStack.java
+++ b/core/src/java/org/jdom2/util/NamespaceStack.java
@@ -551,7 +551,7 @@ private final void pushStack(final Namespace mns, Namespace[] newscope,
 				newscope = ArrayCopy.copyOf(newscope, newscope.length);
 			}
 			// we need to take the Namespace at position 0, and insert it
-			// in it's place later in the array.
+			// in its place later in the array.
 			// we need to take the mns from later in the array, and move it
 			// to the front.
 			final Namespace tmp = newscope[0];
diff --git a/test/src/java/org/jdom2/test/cases/TestAttribute.java b/test/src/java/org/jdom2/test/cases/TestAttribute.java
index 7e2b9d80d..bd32d73bc 100644
--- a/test/src/java/org/jdom2/test/cases/TestAttribute.java
+++ b/test/src/java/org/jdom2/test/cases/TestAttribute.java
@@ -720,7 +720,7 @@ public void test_TCM__OrgJdomNamespace_getNamespace() {
 	}
 
     /**
- 	 * Test that an Attribute returns it's correct name.
+ 	 * Test that an Attribute returns its correct name.
 	 */
     @Test
 	public void test_TCM__String_getName() {
diff --git a/test/src/java/org/jdom2/test/cases/TestElement.java b/test/src/java/org/jdom2/test/cases/TestElement.java
index 6b37d069b..457adcbbd 100644
--- a/test/src/java/org/jdom2/test/cases/TestElement.java
+++ b/test/src/java/org/jdom2/test/cases/TestElement.java
@@ -926,7 +926,7 @@ public void test_TCM__OrgJdomAttribute_getAttribute_String_OrgJdomNamespace() {
     }
 
     /**
-     * Test that an element returns the reference to it's enclosing document
+     * Test that an element returns the reference to its enclosing document
      */
     @Test
     public void test_TCM__OrgJdomDocument_getDocument() {
@@ -1161,7 +1161,7 @@ public void test_TCM__OrgJdomElement_getCopy_String_OrgJdomNamespace() {
     }
 
     /**
-     * Test test that a child element can return it's parent.
+     * Test test that a child element can return its parent.
      */
     @Test
     public void test_TCM__OrgJdomElement_getParent() {
@@ -1642,7 +1642,7 @@ public void test_TCM__OrgJdomElement_setText_String() {
     }
 
     /**
-     * Test that the Element returns it's primary namespace
+     * Test that the Element returns its primary namespace
      */
     @Test
     public void test_TCM__OrgJdomNamespace_getNamespace() {
diff --git a/test/src/java/org/jdom2/test/cases/output/AbstractTestOutputter.java b/test/src/java/org/jdom2/test/cases/output/AbstractTestOutputter.java
index 330e10fc7..eea27c3dd 100644
--- a/test/src/java/org/jdom2/test/cases/output/AbstractTestOutputter.java
+++ b/test/src/java/org/jdom2/test/cases/output/AbstractTestOutputter.java
@@ -1235,7 +1235,7 @@ public void testDeepNesting() {
 			// most test systems use the XMLOutputter in raw mode to output
 			// the results of the conversion. In Raw mode the XMLOutputter will
 			// not make pretty content outside of the root element (but it will
-			// put the XMLDeclaration on it's own line).
+			// put the XMLDeclaration on its own line).
 			// so, in the cases where the actual pretty format is used, we add
 			// this newline after the DocType...
 			pretty.append(lf);