Misc cleanups

Change-Id: I28308f12c3064299acefc346b72279036c3726a7
diff --git a/native/jni/jni_common.cpp b/native/jni/jni_common.cpp
index 8d7bce7..4eeda1d 100644
--- a/native/jni/jni_common.cpp
+++ b/native/jni/jni_common.cpp
@@ -1,6 +1,5 @@
 /*
- *
- * Copyright 2011, The Android Open Source Project
+ * Copyright (C) 2011, The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -37,11 +36,11 @@
     JNIEnv *env = 0;
     jint result = -1;
 
-    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) {
+    if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
         AKLOGE("ERROR: GetEnv failed");
         goto bail;
     }
-    assert(env != 0);
+    assert(env);
 
     if (!register_BinaryDictionary(env)) {
         AKLOGE("ERROR: BinaryDictionary native registration failed");
@@ -59,7 +58,7 @@
     }
 
     /* success -- return valid version number */
-    result = JNI_VERSION_1_4;
+    result = JNI_VERSION_1_6;
 
 bail:
     return result;
@@ -70,7 +69,7 @@
 int registerNativeMethods(JNIEnv *env, const char *className, JNINativeMethod *methods,
         int numMethods) {
     jclass clazz = env->FindClass(className);
-    if (clazz == 0) {
+    if (!clazz) {
         AKLOGE("Native registration unable to find class '%s'", className);
         return JNI_FALSE;
     }