Begin implementation of CheckStyle style checking

By: md_5 <git@md-5.net>

paper-api/src/test/java/org/bukkit/conversations/FakeConversable.java

@@ -15,13 +15,13 @@ public class FakeConversable implements Conversable {
     public Conversation begunConversation;
     public Conversation abandonedConverstion;
     public ConversationAbandonedEvent abandonedConversationEvent;
-    
+
     public boolean isConversing() {
-        return false;   
+        return false;
     }
 
     public void acceptConversationInput(String input) {
-         
+
     }
 
     public boolean beginConversation(Conversation conversation) {
@@ -40,66 +40,66 @@ public class FakeConversable implements Conversable {
     }
 
     public void sendRawMessage(String message) {
-        lastSentMessage = message;     
+        lastSentMessage = message;
     }
 
     public Server getServer() {
-        return null;   
+        return null;
     }
 
     public String getName() {
-        return null;   
+        return null;
     }
 
     public boolean isPermissionSet(String name) {
-        return false;   
+        return false;
     }
 
     public boolean isPermissionSet(Permission perm) {
-        return false;   
+        return false;
     }
 
     public boolean hasPermission(String name) {
-        return false;   
+        return false;
     }
 
     public boolean hasPermission(Permission perm) {
-        return false;   
+        return false;
     }
 
     public PermissionAttachment addAttachment(Plugin plugin, String name, boolean value) {
-        return null;   
+        return null;
     }
 
     public PermissionAttachment addAttachment(Plugin plugin) {
-        return null;   
+        return null;
     }
 
     public PermissionAttachment addAttachment(Plugin plugin, String name, boolean value, int ticks) {
-        return null;   
+        return null;
     }
 
     public PermissionAttachment addAttachment(Plugin plugin, int ticks) {
-        return null;   
+        return null;
     }
 
     public void removeAttachment(PermissionAttachment attachment) {
-         
+
     }
 
     public void recalculatePermissions() {
-         
+
     }
 
     public Set<PermissionAttachmentInfo> getEffectivePermissions() {
-        return null;   
+        return null;
     }
 
     public boolean isOp() {
-        return false;   
+        return false;
     }
 
     public void setOp(boolean value) {
-         
+
     }
 }

paper-api/src/test/java/org/bukkit/conversations/ValidatingPromptTest.java

@@ -18,7 +18,7 @@ public class ValidatingPromptTest {
         prompt.acceptInput(null, "no");
         assertFalse(prompt.result);
     }
-    
+
     @Test
     public void TestFixedSetPrompt() {
         TestFixedSetPrompt prompt = new TestFixedSetPrompt("foo", "bar");
@@ -27,7 +27,7 @@ public class ValidatingPromptTest {
         prompt.acceptInput(null, "foo");
         assertEquals("foo", prompt.result);
     }
-    
+
     @Test
     public void TestNumericPrompt() {
         TestNumericPrompt prompt = new TestNumericPrompt();
@@ -36,7 +36,7 @@ public class ValidatingPromptTest {
         prompt.acceptInput(null, "1010220");
         assertEquals(1010220, prompt.result);
     }
-    
+
     @Test
     public void TestRegexPrompt() {
         TestRegexPrompt prompt = new TestRegexPrompt("a.c");
@@ -48,10 +48,10 @@ public class ValidatingPromptTest {
     }
 
     //TODO: TestPlayerNamePrompt()
-    
+
     private class TestBooleanPrompt extends BooleanPrompt {
         public boolean result;
-        
+
         @Override
         protected Prompt acceptValidatedInput(ConversationContext context, boolean input) {
             result = input;
@@ -62,7 +62,7 @@ public class ValidatingPromptTest {
             return null;
         }
     }
-    
+
     private class TestFixedSetPrompt extends FixedSetPrompt {
         public String result;
 
@@ -80,10 +80,10 @@ public class ValidatingPromptTest {
             return null;
         }
     }
-    
+
     private class TestNumericPrompt extends NumericPrompt {
         public Number result;
-        
+
         @Override
         protected Prompt acceptValidatedInput(ConversationContext context, Number input) {
             result = input;