[Checkstyle] Fix misc style issues in Java files.

tools/android/findbugs_plugin/src/org/chromium/tools/findbugs/plugin/SynchronizedThisDetector.java

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.tools.findbugs.plugin;
 
 import org.apache.bcel.classfile.Code;
 
 import edu.umd.cs.findbugs.BugInstance;
 import edu.umd.cs.findbugs.BugReporter;
 import edu.umd.cs.findbugs.bcel.OpcodeStackDetector;
 
 /**
  * This class detects the synchronized(this).
  *
  * The pattern of byte code of synchronized(this) is
  * aload_0         # Load the 'this' pointer on top of stack
  * dup             # Duplicate the 'this' pointer
  * astore_x        # Store this for late use, it might be astore.
  * monitorenter
  */
 public class SynchronizedThisDetector extends OpcodeStackDetector {
-    private final int PATTERN[] = {ALOAD_0, DUP, 0xff, 0xff, MONITORENTER};
+    private static final int PATTERN[] = {ALOAD_0, DUP, 0xff, 0xff, MONITORENTER};
 
     private int mStep = 0;
     private BugReporter mBugReporter;
 
     public SynchronizedThisDetector(BugReporter bugReporter) {
         mBugReporter = bugReporter;
     }
 
     @Override
     public void visit(Code code) {
@@ skipping 30 matching lines @@
                     break;
             }
         } else if (mStep == 3) {
             // Could be any byte following the ASTORE.
             mStep++;
         } else {
             mStep = 0;
         }
     }
 }