diff --git a/pom.xml b/pom.xml
index 60d6320..f634fd4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -52,6 +52,11 @@
 			<groupId>com.rometools</groupId>
 			<artifactId>rome</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>ch.qos.logback</groupId>
+			<artifactId>logback-classic</artifactId>
+			<scope>test</scope>
+		</dependency>
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
diff --git a/src/main/java/com/sun/syndication/feed/synd/impl/ConverterForOPML10.java b/src/main/java/com/sun/syndication/feed/synd/impl/ConverterForOPML10.java
index 6bbcdc5..073bbcf 100644
--- a/src/main/java/com/sun/syndication/feed/synd/impl/ConverterForOPML10.java
+++ b/src/main/java/com/sun/syndication/feed/synd/impl/ConverterForOPML10.java
@@ -22,7 +22,9 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Stack;
-import java.util.logging.Logger;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import com.sun.syndication.feed.WireFeed;
 import com.sun.syndication.feed.opml.Attribute;
@@ -46,7 +48,9 @@ import com.sun.syndication.feed.synd.SyndPersonImpl;
  * @author cooper
  */
 public class ConverterForOPML10 implements Converter {
-    private static final Logger LOG = Logger.getLogger(ConverterForOPML10.class.getName().toString());
+
+    private static final Logger LOG = LoggerFactory.getLogger(ConverterForOPML10.class);
+
     public static final String URI_TREE = "urn:rome.tree";
     public static final String URI_ATTRIBUTE = "urn:rome.attribute#";
 
@@ -73,7 +77,8 @@ public class ConverterForOPML10 implements Converter {
      * <p>
      *
      * @param feed real feed to copy/convert.
-     * @param syndFeed the SyndFeedImpl that will contain the copied/converted values of the real feed.
+     * @param syndFeed the SyndFeedImpl that will contain the copied/converted values of the real
+     *            feed.
      */
     @Override
     public void copyInto(final WireFeed feed, final SyndFeed syndFeed) {
@@ -200,8 +205,12 @@ public class ConverterForOPML10 implements Converter {
         final List<SyndEntry> entries = Collections.synchronizedList(syndFeed.getEntries());
 
         final HashMap<String, Outline> entriesByNode = new HashMap<String, Outline>();
-        final ArrayList<OutlineHolder> doAfterPass = new ArrayList<OutlineHolder>(); // this will hold entries that we can't parent the first time.
-        final ArrayList<Outline> root = new ArrayList<Outline>(); // this holds root level outlines;
+        
+        // this will hold entries that we can't parent the first time.
+        final ArrayList<OutlineHolder> doAfterPass = new ArrayList<OutlineHolder>(); 
+
+        // this holds root level outlines;
+        final ArrayList<Outline> root = new ArrayList<Outline>(); 
 
         for (int i = 0; i < entries.size(); i++) {
             final SyndEntry entry = entries.get(i);
@@ -294,7 +303,7 @@ public class ConverterForOPML10 implements Converter {
 
             if (parent == null) {
                 root.add(o.outline);
-                LOG.warning("Unable to find parent node :" + o.parent);
+                LOG.warn("Unable to find parent node: {}", o.parent);
             } else {
                 parent.getChildren().add(o.outline);
             }
diff --git a/src/main/java/com/sun/syndication/io/impl/OPML10Parser.java b/src/main/java/com/sun/syndication/io/impl/OPML10Parser.java
index 34b4a7f..a3ff729 100644
--- a/src/main/java/com/sun/syndication/io/impl/OPML10Parser.java
+++ b/src/main/java/com/sun/syndication/io/impl/OPML10Parser.java
@@ -21,11 +21,11 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Locale;
 import java.util.StringTokenizer;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 
 import org.jdom2.Document;
 import org.jdom2.Element;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import com.sun.syndication.feed.WireFeed;
 import com.sun.syndication.feed.opml.Attribute;
@@ -39,7 +39,8 @@ import com.sun.syndication.io.WireFeedParser;
  * @author <a href="mailto:cooper@screaming-penguin.com">Robert "kebernet" Cooper</a>
  */
 public class OPML10Parser extends BaseWireFeedParser implements WireFeedParser {
-    private static Logger LOG = Logger.getLogger(OPML10Parser.class.getName());
+
+    private static Logger LOG = LoggerFactory.getLogger(OPML10Parser.class);
 
     /** Creates a new instance of Opml10Parser */
     public OPML10Parser() {
@@ -108,7 +109,7 @@ public class OPML10Parser extends BaseWireFeedParser implements WireFeedParser {
         try {
             opml.setWindowBottom(readInteger(head.getChildText("windowBottom")));
         } catch (final NumberFormatException nfe) {
-            LOG.log(Level.WARNING, "Unable to parse windowBottom", nfe);
+            LOG.warn("Unable to parse windowBottom", nfe);
 
             if (validate) {
                 throw new FeedException("Unable to parse windowBottom", nfe);
@@ -118,13 +119,13 @@ public class OPML10Parser extends BaseWireFeedParser implements WireFeedParser {
         try {
             opml.setWindowLeft(readInteger(head.getChildText("windowLeft")));
         } catch (final NumberFormatException nfe) {
-            LOG.log(Level.WARNING, "Unable to parse windowLeft", nfe);
+            LOG.warn("Unable to parse windowLeft", nfe);
         }
 
         try {
             opml.setWindowRight(readInteger(head.getChildText("windowRight")));
         } catch (final NumberFormatException nfe) {
-            LOG.log(Level.WARNING, "Unable to parse windowRight", nfe);
+            LOG.warn("Unable to parse windowRight", nfe);
 
             if (validate) {
                 throw new FeedException("Unable to parse windowRight", nfe);
@@ -134,7 +135,7 @@ public class OPML10Parser extends BaseWireFeedParser implements WireFeedParser {
         try {
             opml.setWindowLeft(readInteger(head.getChildText("windowLeft")));
         } catch (final NumberFormatException nfe) {
-            LOG.log(Level.WARNING, "Unable to parse windowLeft", nfe);
+            LOG.warn("Unable to parse windowLeft", nfe);
 
             if (validate) {
                 throw new FeedException("Unable to parse windowLeft", nfe);
@@ -144,7 +145,7 @@ public class OPML10Parser extends BaseWireFeedParser implements WireFeedParser {
         try {
             opml.setWindowTop(readInteger(head.getChildText("windowTop")));
         } catch (final NumberFormatException nfe) {
-            LOG.log(Level.WARNING, "Unable to parse windowTop", nfe);
+            LOG.warn("Unable to parse windowTop", nfe);
 
             if (validate) {
                 throw new FeedException("Unable to parse windowTop", nfe);
@@ -154,7 +155,7 @@ public class OPML10Parser extends BaseWireFeedParser implements WireFeedParser {
         try {
             opml.setExpansionState(readIntArray(head.getChildText("expansionState")));
         } catch (final NumberFormatException nfe) {
-            LOG.log(Level.WARNING, "Unable to parse expansionState", nfe);
+            LOG.warn("Unable to parse expansionState", nfe);
 
             if (validate) {
                 throw new FeedException("Unable to parse expansionState", nfe);
@@ -194,7 +195,7 @@ public class OPML10Parser extends BaseWireFeedParser implements WireFeedParser {
         try {
             outline.setBreakpoint(readBoolean(e.getAttributeValue("isBreakpoint")));
         } catch (final Exception ex) {
-            LOG.log(Level.WARNING, "Unable to parse isBreakpoint value", ex);
+            LOG.warn("Unable to parse isBreakpoint value", ex);
 
             if (validate) {
                 throw new FeedException("Unable to parse isBreakpoint value", ex);
@@ -204,7 +205,7 @@ public class OPML10Parser extends BaseWireFeedParser implements WireFeedParser {
         try {
             outline.setComment(readBoolean(e.getAttributeValue("isComment")));
         } catch (final Exception ex) {
-            LOG.log(Level.WARNING, "Unable to parse isComment value", ex);
+            LOG.warn("Unable to parse isComment value", ex);
 
             if (validate) {
                 throw new FeedException("Unable to parse isComment value", ex);
diff --git a/src/test/resources/logback-test.xml b/src/test/resources/logback-test.xml
new file mode 100644
index 0000000..44dea42
--- /dev/null
+++ b/src/test/resources/logback-test.xml
@@ -0,0 +1,13 @@
+<configuration>
+
+	<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+		<encoder>
+			<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
+		</encoder>
+	</appender>
+
+	<root level="warn">
+		<appender-ref ref="STDOUT" />
+	</root>
+
+</configuration>
\ No newline at end of file