Optimize imports

Reformatted code (Java convention; tab is 4 spaces)

pom.xml

@@ -1,4 +1,5 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>org.ahocorasick</groupId>

src/main/java/org/ahocorasick/interval/IntervalTree.java

@@ -1,10 +1,11 @@
 package org.ahocorasick.interval;
 
-import static java.util.Collections.sort;
 import java.util.List;
 import java.util.Set;
 import java.util.TreeSet;
 
+import static java.util.Collections.sort;
+
 public class IntervalTree {
 
     private final IntervalNode rootNode;

src/main/java/org/ahocorasick/trie/State.java

@@ -6,7 +6,7 @@ import java.util.*;
  * <p>
  * A state has various important tasks it must attend to:
  * </p>
- *
+ * <p>
  * <ul>
  * <li>success; when a character points to another state, it must return that state</li>
  * <li>failure; when a character has no matching state, the algorithm must be able to fall back on a
@@ -14,7 +14,7 @@ import java.util.*;
  * <li>emits; when this state is passed and keywords have been matched, the matches must be
  * 'emitted' so that they can be used later on.</li>
  * </ul>
- *
+ * <p>
  * <p>
  * The root state is special in the sense that it has no failure state; it cannot fail. If it 'fails'
  * it will still parse the next character and start from the root node. This ensures that the algorithm
@@ -25,10 +25,14 @@ import java.util.*;
  */
 public class State {
 
-    /** effective the size of the keyword */
+    /**
+     * effective the size of the keyword
+     */
     private final int depth;
 
-    /** only used for the root state to refer to itself in case no matches have been found */
+    /**
+     * only used for the root state to refer to itself in case no matches have been found
+     */
     private final State rootState;
 
     /**
@@ -37,10 +41,14 @@ public class State {
      */
     private final Map<Character, State> success = new HashMap<>();
 
-    /** if no matching states are found, the failure state will be returned */
+    /**
+     * if no matching states are found, the failure state will be returned
+     */
     private State failure;
 
-    /** whenever this state is reached, it will emit the matches keywords for future reference */
+    /**
+     * whenever this state is reached, it will emit the matches keywords for future reference
+     */
     private Set<String> emits;
 
     public State() {

src/main/java/org/ahocorasick/trie/Trie.java

@@ -1,17 +1,19 @@
 package org.ahocorasick.trie;
 
-import static java.lang.Character.isAlphabetic;
+import org.ahocorasick.interval.IntervalTree;
-import static java.lang.Character.isWhitespace;
+import org.ahocorasick.interval.Intervalable;
-import static java.lang.Character.toLowerCase;
+import org.ahocorasick.trie.handler.DefaultEmitHandler;
+import org.ahocorasick.trie.handler.EmitHandler;
+
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import java.util.Queue;
 import java.util.concurrent.LinkedBlockingDeque;
-import org.ahocorasick.interval.IntervalTree;
+
-import org.ahocorasick.interval.Intervalable;
+import static java.lang.Character.*;
-import org.ahocorasick.trie.handler.DefaultEmitHandler;
+
-import org.ahocorasick.trie.handler.EmitHandler;
+import java.lang.Character;
 
 /**
  * Based on the Aho-Corasick white paper, Bell technologies:
@@ -34,7 +36,6 @@ public class Trie {
      * Used by the builder to add a text search keyword.
      *
      * @param keyword The search term to add to the list of search terms.
-     * 
      * @throws NullPointerException if the keyword is null.
      */
     private void addKeyword(String keyword) {
@@ -296,13 +297,13 @@ public class Trie {
         /**
          * Default (empty) constructor.
          */
-        private TrieBuilder() {}
+        private TrieBuilder() {
+        }
 
         /**
          * Adds a keyword to the Trie's list of text search keywords.
          *
          * @param keyword The keyword to add to the list.
-         * 
          * @return This builder.
          * @throws NullPointerException if the keyword is null.
          */
@@ -315,7 +316,6 @@ public class Trie {
          * Adds a list of keywords to the Trie's list of text search keywords.
          *
          * @param keywords The keywords to add to the list.
-         * 
          * @return This builder.
          */
         public TrieBuilder addKeywords(final CharSequence... keywords) {
@@ -330,7 +330,6 @@ public class Trie {
          * Adds a list of keywords to the Trie's list of text search keywords.
          *
          * @param keywords The keywords to add to the list.
-         * 
          * @return This builder.
          */
         public TrieBuilder addKeywords(final Collection<CharSequence> keywords) {

src/main/java/org/ahocorasick/trie/handler/DefaultEmitHandler.java

@@ -1,8 +1,9 @@
 package org.ahocorasick.trie.handler;
 
+import org.ahocorasick.trie.Emit;
+
 import java.util.ArrayList;
 import java.util.List;
-import org.ahocorasick.trie.Emit;
 
 public class DefaultEmitHandler implements EmitHandler {
 

src/test/java/org/ahocorasick/interval/IntervalTest.java

@@ -2,11 +2,11 @@ package org.ahocorasick.interval;
 
 import org.junit.Test;
 
-import java.util.*;
+import java.util.Iterator;
+import java.util.Set;
+import java.util.TreeSet;
 
-import static junit.framework.Assert.assertEquals;
+import static junit.framework.Assert.*;
-import static junit.framework.Assert.assertFalse;
-import static junit.framework.Assert.assertTrue;
 
 public class IntervalTest {
 

src/test/java/org/ahocorasick/interval/IntervalableComparatorByPositionTest.java

@@ -3,10 +3,9 @@ package org.ahocorasick.interval;
 import org.junit.Test;
 
 import java.util.ArrayList;
-import java.util.Collections;
-import static java.util.Collections.sort;
 import java.util.List;
 
+import static java.util.Collections.sort;
 import static junit.framework.Assert.assertEquals;
 
 public class IntervalableComparatorByPositionTest {

src/test/java/org/ahocorasick/interval/IntervalableComparatorBySizeTest.java

@@ -3,11 +3,9 @@ package org.ahocorasick.interval;
 import org.junit.Test;
 
 import java.util.ArrayList;
-import java.util.Collections;
-import static java.util.Collections.sort;
-import static java.util.Collections.sort;
 import java.util.List;
 
+import static java.util.Collections.sort;
 import static junit.framework.Assert.assertEquals;
 
 public class IntervalableComparatorBySizeTest {

src/test/java/org/ahocorasick/trie/StateTest.java

@@ -1,6 +1,5 @@
 package org.ahocorasick.trie;
 
-import org.ahocorasick.trie.State;
 import org.junit.Test;
 
 import static junit.framework.Assert.assertEquals;

src/test/java/org/ahocorasick/trie/TrieTest.java

@@ -1,16 +1,17 @@
 package org.ahocorasick.trie;
 
+import org.ahocorasick.trie.handler.EmitHandler;
+import org.junit.Test;
+
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.List;
-import java.util.concurrent.ThreadLocalRandom;
+
 import static java.util.concurrent.ThreadLocalRandom.current;
 import static junit.framework.Assert.assertEquals;
 import static org.ahocorasick.trie.Trie.builder;
-import org.ahocorasick.trie.handler.EmitHandler;
 import static org.junit.Assert.assertTrue;
-import org.junit.Test;
 
 public class TrieTest {
     private final static String[] ALPHABET = new String[]{