title: Get rid of "Exported service does not require permission" warning
body: <p>I'm looking for a solution to get rid of the warning. I don't understand even why it appears. I took a look at a SDK example where no warning appears.</p>
  
  <p>At first here is my manifest where I get the warning <em>Exported service does not require permission</em>:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.example.android"
      android:versionCode="1"
      android:versionName="1.0" &gt;
  
      &lt;uses-sdk android:minSdkVersion="8"
                android:targetSdkVersion="15" /&gt;
  
      &lt;uses-feature android:name="android.hardware.camera"
                    android:required="true" /&gt;
  
      &lt;uses-permission android:name="android.permission.GET_ACCOUNTS" /&gt;
      &lt;uses-permission android:name="android.permission.USE_CREDENTIALS" /&gt;
      &lt;uses-permission android:name="android.permission.MANAGE_ACCOUNTS" /&gt;
      &lt;uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" /&gt;
      &lt;uses-permission android:name="android.permission.READ_SYNC_SETTINGS" /&gt;
      &lt;uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" /&gt;
  
      &lt;application
          android:icon="@drawable/ic_launcher"
          android:label="@string/app_name"
          android:theme="@style/Theme.Sherlock"&gt;
          &lt;service
              android:name=".AuthenticationService"
              android:exported="true"&gt;
              &lt;intent-filter&gt;
                  &lt;action
                      android:name="android.accounts.AccountAuthenticator" /&gt;
              &lt;/intent-filter&gt;
              &lt;meta-data
                  android:name="android.accounts.AccountAuthenticator"
                  android:resource="@xml/authenticator" /&gt;
          &lt;/service&gt;
  
          &lt;activity
              android:name=".Test"
              android:label="@string/app_name" &gt;
              &lt;intent-filter&gt;
                  &lt;action android:name="android.intent.action.MAIN" /&gt;
                  &lt;category android:name="android.intent.category.DEFAULT" /&gt;
                  &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
              &lt;/intent-filter&gt;
          &lt;/activity&gt;
  ...
  </code></pre>
  
  <p>While the <strong>SampleSyncAdapter</strong> of the Android SDK has this manifest:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest
      xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.example.android.samplesync"
      android:versionCode="1"
      android:versionName="1.0"&gt;
      &lt;uses-permission android:name="android.permission.GET_ACCOUNTS" /&gt;
      &lt;uses-permission android:name="android.permission.USE_CREDENTIALS" /&gt;
      &lt;!-- ... --&gt;
  
      &lt;uses-sdk android:minSdkVersion="8" android:targetSdkVersion="15" /&gt;
  
      &lt;application
          android:icon="@drawable/icon"
          android:label="@string/label"&gt;
          &lt;!-- The authenticator service --&gt;
          &lt;service
              android:name=".authenticator.AuthenticationService"
              android:exported="true"&gt;
              &lt;intent-filter&gt;
                  &lt;action
                      android:name="android.accounts.AccountAuthenticator" /&gt;
              &lt;/intent-filter&gt;
              &lt;meta-data
                  android:name="android.accounts.AccountAuthenticator"
                  android:resource="@xml/authenticator" /&gt;
          &lt;/service&gt;
      ...
  </code></pre>
  
  <p>But there is no warning. Why the hell do I get a warning? Well I use the Theme.Sherlock theme for the usage of the <em>ActionBarSherlock</em>. But I cannot imagine that this causes the error.</p>