diff --git a/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/common/EnvironmentException.java b/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/common/EnvironmentException.java
index 14c5705..b315b61 100644
--- a/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/common/EnvironmentException.java
+++ b/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/common/EnvironmentException.java
@@ -15,6 +15,11 @@
  */
 public class EnvironmentException extends Exception
 {
+  /**
+   * Comment for <code>serialVersionUID</code>
+   */
+  private static final long serialVersionUID = 3978983275899402036L;
+  
   protected Status status = null;
   
   /**
diff --git a/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/common/RangeVector.java b/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/common/RangeVector.java
index 5b821fb..c208685 100644
--- a/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/common/RangeVector.java
+++ b/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/common/RangeVector.java
@@ -18,6 +18,11 @@
  */
 public class RangeVector extends Vector
 {
+  /**
+   * Comment for <code>serialVersionUID</code>
+   */
+  private static final long serialVersionUID = 4048793476659230773L;
+
   public void removeRange( int start, int end )
   {
     super.removeRange( start, end );
diff --git a/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/common/StatusException.java b/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/common/StatusException.java
index 1afcd99..825bc66 100644
--- a/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/common/StatusException.java
+++ b/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/common/StatusException.java
@@ -17,6 +17,11 @@
 public class StatusException extends EnvironmentException
 {
   /**
+   * Comment for <code>serialVersionUID</code>
+   * */
+  private static final long serialVersionUID = 3618141160322119992L;
+
+  /**
    * The Choice that lead to the exception being thrown,
    * if any (ie. may be null).
    */
diff --git a/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/uri/URIException.java b/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/uri/URIException.java
index ebbe2e8..1226212 100644
--- a/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/uri/URIException.java
+++ b/bundles/org.eclipse.wst.command.env.core/src/org/eclipse/wst/command/env/core/uri/URIException.java
@@ -21,6 +21,11 @@
 public class URIException extends Exception
 {
   /**
+   * Comment for <code>serialVersionUID</code>
+   */
+  private static final long serialVersionUID = 3258130271424756018L;
+
+  /**
    * A Status object containing details about the exception,
    * if applicable.
    */