diff --git a/Frameworks/BusinessLogic/ERAttachment/Sources/com/rackspacecloud/client/cloudfiles/FilesUtil.java b/Frameworks/BusinessLogic/ERAttachment/Sources/com/rackspacecloud/client/cloudfiles/FilesUtil.java
index c412fc64a7b..013f16bee5b 100644
--- a/Frameworks/BusinessLogic/ERAttachment/Sources/com/rackspacecloud/client/cloudfiles/FilesUtil.java
+++ b/Frameworks/BusinessLogic/ERAttachment/Sources/com/rackspacecloud/client/cloudfiles/FilesUtil.java
@@ -86,7 +86,7 @@ public static String getProperty(final String key)
                 logger.warn("Unable to load properties file.", e);
             }
         }
-        return props.getProperty(key);
+        return props != null ? props.getProperty(key) : null;
     }
 
 
@@ -109,7 +109,7 @@ public static String getProperty(final String key, final String defaultValue)
                 logger.warn("Unable to load properties file.", e);
             }
         }
-        return props.getProperty(key, defaultValue);
+        return props != null ? props.getProperty(key, defaultValue) : defaultValue;
     }
 
 
diff --git a/Frameworks/Core/ERExtensions/Sources/er/extensions/eof/ERXSharedEOLoader.java b/Frameworks/Core/ERExtensions/Sources/er/extensions/eof/ERXSharedEOLoader.java
index 9a1eecfa130..1a8d2baa529 100644
--- a/Frameworks/Core/ERExtensions/Sources/er/extensions/eof/ERXSharedEOLoader.java
+++ b/Frameworks/Core/ERExtensions/Sources/er/extensions/eof/ERXSharedEOLoader.java
@@ -209,7 +209,7 @@ public void objectStoreWasAdded(NSNotification aNotification) {
                     log.debug("Shared EO loading complete: no objects loaded.");
                 }
             } catch (Exception e) {
-                log.error("Exception occurred with model: " + currentModel.name() + "\n" + e + ERXUtilities.stackTrace());
+                log.error("Exception occurred with model: " + (currentModel != null ? currentModel.name() : "<null>" ) + "\n" + e + ERXUtilities.stackTrace());
                 // no matter what happens, un-register for notifications.
                 NSNotificationCenter.defaultCenter().removeObserver(this, EOAdaptorContext.AdaptorContextBeginTransactionNotification, null);
                 if (_didChangeDebugSetting) {
diff --git a/Frameworks/Core/ERExtensions/Sources/er/extensions/foundation/ERXRandomGUID.java b/Frameworks/Core/ERExtensions/Sources/er/extensions/foundation/ERXRandomGUID.java
index 99e0561d235..77e5e76cdbb 100644
--- a/Frameworks/Core/ERExtensions/Sources/er/extensions/foundation/ERXRandomGUID.java
+++ b/Frameworks/Core/ERExtensions/Sources/er/extensions/foundation/ERXRandomGUID.java
@@ -184,6 +184,9 @@ private void getRandomGUID(boolean secure) {
             md5 = MessageDigest.getInstance("MD5");
         } catch (NoSuchAlgorithmException e) {
             System.out.println("Error: " + e);
+            valueBeforeMD5 = "";
+            valueAfterMD5 = "";
+            return;
         }
 
         try {
diff --git a/Frameworks/EOAdaptors/JavaLuceneAdaptor/Sources/er/luceneadaptor/ERLuceneAdaptorChannel.java b/Frameworks/EOAdaptors/JavaLuceneAdaptor/Sources/er/luceneadaptor/ERLuceneAdaptorChannel.java
index 62e8a813aaa..ceabe105f4e 100755
--- a/Frameworks/EOAdaptors/JavaLuceneAdaptor/Sources/er/luceneadaptor/ERLuceneAdaptorChannel.java
+++ b/Frameworks/EOAdaptors/JavaLuceneAdaptor/Sources/er/luceneadaptor/ERLuceneAdaptorChannel.java
@@ -384,7 +384,9 @@ public Field valueToField(Document doc, Object value) {
 			} else {
 				field = null;
 			}
-			field.setValue(stringValue);
+			if (field != null) {
+				field.setValue(stringValue);
+			}
 			return field;
 		}
 
diff --git a/Frameworks/WOAdaptors/ERIMAdaptor/Sources/er/imadaptor/InstantMessengerAdaptor.java b/Frameworks/WOAdaptors/ERIMAdaptor/Sources/er/imadaptor/InstantMessengerAdaptor.java
index 9385e2521d0..725f919d3e7 100644
--- a/Frameworks/WOAdaptors/ERIMAdaptor/Sources/er/imadaptor/InstantMessengerAdaptor.java
+++ b/Frameworks/WOAdaptors/ERIMAdaptor/Sources/er/imadaptor/InstantMessengerAdaptor.java
@@ -321,7 +321,7 @@ public synchronized void messageReceived(IInstantMessenger instantMessenger, Str
 				if (responseMessage != null) {
 					responseMessage = responseMessage.trim();
 				}
-				if (responseMessage.length() > 0) {
+				if (responseMessage != null && responseMessage.length() > 0) {
 					if (log.isInfoEnabled()) {
 						log.info("Sending message to '" + buddyName + "': " + responseMessage);
 					}