Fixed empty banned words list muting all chat.

src/me/ryanhamshire/GriefPrevention/Tests.java

@@ -2,6 +2,7 @@ package me.ryanhamshire.GriefPrevention;
 
 import static org.junit.Assert.*;
 
+import java.util.ArrayList;
 import java.util.Arrays;
 
 import org.junit.Test;
@@ -57,4 +58,11 @@ public class Tests
        WordFinder finder = new WordFinder(Arrays.asList("alpha"));
        assertFalse(finder.hasMatch("Unit testing is smart."));
    }
+   
+   @Test
+   public void WordFinder_EmptyList()
+   {
+       WordFinder finder = new WordFinder(new ArrayList<String>());
+       assertFalse(finder.hasMatch("alpha"));
+   }
 }

src/me/ryanhamshire/GriefPrevention/WordFinder.java

@@ -10,6 +10,8 @@ class WordFinder
     
     WordFinder(List<String> wordsToFind)
     {
+        if(wordsToFind.size() == 0) return;
+        
         StringBuilder patternBuilder = new StringBuilder();
         for(String word : wordsToFind)
         {
@@ -28,6 +30,8 @@ class WordFinder
     
     boolean hasMatch(String input)
     {
+        if(this.pattern == null) return false;
+        
         Matcher matcher = this.pattern.matcher(input);
         return matcher.find();
     }