Simplify exception signatures
diff --git a/src/main/java/org/apache/log4j/chainsaw/LogFilePatternLayoutBuilder.java b/src/main/java/org/apache/log4j/chainsaw/LogFilePatternLayoutBuilder.java
index 0112818..990ce85 100644
--- a/src/main/java/org/apache/log4j/chainsaw/LogFilePatternLayoutBuilder.java
+++ b/src/main/java/org/apache/log4j/chainsaw/LogFilePatternLayoutBuilder.java
@@ -168,7 +168,7 @@
     return new HashMap();
   }
 
-  public static Map getPropertiesFileAppenderConfiguration(File propertyFile) throws IOException, ParserConfigurationException, SAXException {
+  public static Map getPropertiesFileAppenderConfiguration(File propertyFile) throws IOException {
     Map result = new HashMap();
     String appenderPrefix = "log4j.appender";
     Properties props = new Properties();
diff --git a/src/main/java/org/apache/log4j/chainsaw/receivers/ReceiversPanel.java b/src/main/java/org/apache/log4j/chainsaw/receivers/ReceiversPanel.java
index baf45a1..884adf6 100644
--- a/src/main/java/org/apache/log4j/chainsaw/receivers/ReceiversPanel.java
+++ b/src/main/java/org/apache/log4j/chainsaw/receivers/ReceiversPanel.java
@@ -181,8 +181,7 @@
           }
         }
 
-        public void treeWillExpand(TreeExpansionEvent event)
-          throws ExpandVetoException {
+        public void treeWillExpand(TreeExpansionEvent event) {
         }
       });
 
diff --git a/src/main/java/org/apache/log4j/chainsaw/zeroconf/ZeroConfPlugin.java b/src/main/java/org/apache/log4j/chainsaw/zeroconf/ZeroConfPlugin.java
index 89574d2..895a8d2 100644
--- a/src/main/java/org/apache/log4j/chainsaw/zeroconf/ZeroConfPlugin.java
+++ b/src/main/java/org/apache/log4j/chainsaw/zeroconf/ZeroConfPlugin.java
@@ -612,7 +612,7 @@
         return null;
     }
 
-    public static void main(String[] args) throws InterruptedException {
+    public static void main(String[] args) {
 
         BasicConfigurator.resetConfiguration();
         BasicConfigurator.configure();
diff --git a/src/test/java/org/apache/log4j/chainsaw/LogPanelPreferenceModelTest.java b/src/test/java/org/apache/log4j/chainsaw/LogPanelPreferenceModelTest.java
index 2440826..808b17e 100644
--- a/src/test/java/org/apache/log4j/chainsaw/LogPanelPreferenceModelTest.java
+++ b/src/test/java/org/apache/log4j/chainsaw/LogPanelPreferenceModelTest.java
@@ -23,7 +23,7 @@
 
 public class LogPanelPreferenceModelTest extends TestCase {
 
-    public void testLogPanelPreferenceModelSerialization() throws Exception {
+    public void testLogPanelPreferenceModelSerialization() {
         LogPanelPreferenceModel model = new LogPanelPreferenceModel();
         
         
diff --git a/src/test/java/org/apache/log4j/util/Compare.java b/src/test/java/org/apache/log4j/util/Compare.java
index 42aa233..9fe7ae6 100644
--- a/src/test/java/org/apache/log4j/util/Compare.java
+++ b/src/test/java/org/apache/log4j/util/Compare.java
@@ -142,7 +142,7 @@
     public static boolean gzCompare(final Class testClass,
                                     final String actual,
                                     final String expected)
-      throws FileNotFoundException, IOException {
+      throws IOException {
       String resourceName = expected;
       int lastSlash = expected.lastIndexOf("/");
       if (lastSlash >= 0) {