completed some javadoc on compile and constructor methods

Signed-off-by: Lachlan Roberts <lachlan@webtide.com>

jetty-util/src/main/java/org/eclipse/jetty/util/SearchPattern.java

@@ -41,19 +41,31 @@ public class SearchPattern
     private int[] table;
     private byte[] pattern;    
     
-
+    /**
+     * Produces a SearchPattern instance which can be used
+     * to find matches of the pattern in data
+     * @param pattern byte array containing the pattern
+     * @return a new SearchPattern instance using the given pattern
+     */
     public static SearchPattern compile(byte[] pattern)
     {
         return new SearchPattern(Arrays.copyOf(pattern, pattern.length));
     }
     
-    
+    /**
+     * Produces a SearchPattern instance which can be used
+     * to find matches of the pattern in data
+     * @param pattern string containing the pattern
+     * @return a new SearchPattern instance using the given pattern
+     */
     public static SearchPattern compile(String pattern)
     {
         return new SearchPattern(pattern.getBytes(StandardCharsets.UTF_8));
     }
     
-    
+    /**
+     * @param pattern byte array containing the pattern used for matching
+     */
     private SearchPattern(byte[] pattern)
     {
         this.pattern = pattern;

jetty-util/src/test/java/org/eclipse/jetty/util/SearchPatternTest.java

@@ -25,7 +25,8 @@ import java.nio.charset.StandardCharsets;
 import org.junit.Assert;
 import org.junit.Test;
 
-public class SearchPatternTest
+public class 
+
 {