diff --git a/Core/src/org/sleuthkit/autopsy/casemodule/Case.java b/Core/src/org/sleuthkit/autopsy/casemodule/Case.java
index c136022021..f25c6c64e1 100644
--- a/Core/src/org/sleuthkit/autopsy/casemodule/Case.java
+++ b/Core/src/org/sleuthkit/autopsy/casemodule/Case.java
@@ -28,7 +28,6 @@ import java.io.IOException;
 import java.nio.file.InvalidPathException;
 import java.nio.file.Path;
 import java.nio.file.Paths;
-import java.security.GeneralSecurityException;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.Date;
diff --git a/Core/src/org/sleuthkit/autopsy/core/TextConverter.java b/Core/src/org/sleuthkit/autopsy/core/TextConverter.java
index bb9030851e..06bd418f70 100644
--- a/Core/src/org/sleuthkit/autopsy/core/TextConverter.java
+++ b/Core/src/org/sleuthkit/autopsy/core/TextConverter.java
@@ -18,23 +18,22 @@
  */
 package org.sleuthkit.autopsy.core;
 
-import java.io.IOException;
-import java.io.UnsupportedEncodingException;
-import java.security.GeneralSecurityException;
 import java.util.Base64;
-
+import java.util.logging.Level;
 import javax.crypto.Cipher;
 import javax.crypto.SecretKey;
 import javax.crypto.SecretKeyFactory;
 import javax.crypto.spec.PBEKeySpec;
 import javax.crypto.spec.PBEParameterSpec;
 import org.openide.util.NbBundle;
+import org.sleuthkit.autopsy.coreutils.Logger;
 
 /**
  * Provides ability to convert text to hex text.
  */
 class TextConverter {
     
+    private static final Logger logger = Logger.getLogger(TextConverter.class.getName());
     private static final char[] TMP = "dontlookhere".toCharArray();
     private static final byte[] SALT = {
         (byte) 0xde, (byte) 0x33, (byte) 0x10, (byte) 0x12,
@@ -55,6 +54,7 @@ class TextConverter {
             pbeCipher.init(Cipher.ENCRYPT_MODE, key, new PBEParameterSpec(SALT, 20));
             return base64Encode(pbeCipher.doFinal(property.getBytes("UTF-8")));
         } catch (Exception ex) {
+            logger.log(Level.SEVERE, "Error converting text to hex text", ex); //NON-NLS
             throw new IllegalArgumentException(
                     NbBundle.getMessage(TextConverter.class, "TextConverter.convert.exception.txt"));
         }
@@ -78,6 +78,7 @@ class TextConverter {
             pbeCipher.init(Cipher.DECRYPT_MODE, key, new PBEParameterSpec(SALT, 20));
             return new String(pbeCipher.doFinal(base64Decode(property)), "UTF-8");
         } catch (Exception ex) {
+            logger.log(Level.SEVERE, "Error converting hex text to text", ex); //NON-NLS
             throw new IllegalArgumentException(
                     NbBundle.getMessage(TextConverter.class, "TextConverter.convertFromHex.exception.txt"));
         }            
diff --git a/Core/src/org/sleuthkit/autopsy/core/UserPreferences.java b/Core/src/org/sleuthkit/autopsy/core/UserPreferences.java
index 8f8eb9a9d2..9acae39438 100755
--- a/Core/src/org/sleuthkit/autopsy/core/UserPreferences.java
+++ b/Core/src/org/sleuthkit/autopsy/core/UserPreferences.java
@@ -18,9 +18,6 @@
  */
 package org.sleuthkit.autopsy.core;
 
-import java.io.IOException;
-import java.io.UnsupportedEncodingException;
-import java.security.GeneralSecurityException;
 import java.util.prefs.BackingStoreException;
 import org.sleuthkit.autopsy.events.MessageServiceConnectionInfo;
 import java.util.prefs.PreferenceChangeListener;
diff --git a/Core/src/org/sleuthkit/autopsy/corecomponents/MultiUserSettingsPanel.java b/Core/src/org/sleuthkit/autopsy/corecomponents/MultiUserSettingsPanel.java
index 0c115b83e6..b692d53fa8 100644
--- a/Core/src/org/sleuthkit/autopsy/corecomponents/MultiUserSettingsPanel.java
+++ b/Core/src/org/sleuthkit/autopsy/corecomponents/MultiUserSettingsPanel.java
@@ -18,12 +18,8 @@ import org.sleuthkit.autopsy.core.UserPreferences;
 import org.sleuthkit.autopsy.events.MessageServiceConnectionInfo;
 import org.sleuthkit.autopsy.coreutils.Logger;
 import java.awt.Cursor;
-import java.io.IOException;
-import java.io.UnsupportedEncodingException;
-import java.security.GeneralSecurityException;
 import java.util.logging.Level;
 import javax.swing.ImageIcon;
-import org.openide.util.Exceptions;
 import org.openide.util.ImageUtilities;
 import org.openide.util.Lookup;
 import org.sleuthkit.autopsy.keywordsearchservice.KeywordSearchService;
diff --git a/Core/src/org/sleuthkit/autopsy/events/AutopsyEventPublisher.java b/Core/src/org/sleuthkit/autopsy/events/AutopsyEventPublisher.java
index ad22cc8b2f..80c352e611 100644
--- a/Core/src/org/sleuthkit/autopsy/events/AutopsyEventPublisher.java
+++ b/Core/src/org/sleuthkit/autopsy/events/AutopsyEventPublisher.java
@@ -19,9 +19,7 @@
 package org.sleuthkit.autopsy.events;
 
 import java.beans.PropertyChangeListener;
-import java.io.IOException;
 import java.net.URISyntaxException;
-import java.security.GeneralSecurityException;
 import java.util.Set;
 import java.util.logging.Level;
 import javax.jms.JMSException;