Add null checks for the initializer component in download/install tasks.

Bug: 19819830
Change-Id: I7b0215cd3ee32d57ae10728d588de3f648bd8d8c
diff --git a/src/com/android/managedprovisioning/task/DownloadPackageTask.java b/src/com/android/managedprovisioning/task/DownloadPackageTask.java
index 79185b2..f877d50 100644
--- a/src/com/android/managedprovisioning/task/DownloadPackageTask.java
+++ b/src/com/android/managedprovisioning/task/DownloadPackageTask.java
@@ -77,7 +77,8 @@
                     params.mDeviceAdminPackageDownloadCookieHeader,
                     DEVICE_OWNER));
         }
-        if (!TextUtils.isEmpty(params.mDeviceInitializerPackageDownloadLocation)) {
+        if (params.mDeviceInitializerComponentName != null
+                && !TextUtils.isEmpty(params.mDeviceInitializerPackageDownloadLocation)) {
             mDownloads.add(new DownloadInfo(
                     params.mDeviceInitializerPackageDownloadLocation,
                     params.mDeviceInitializerPackageChecksum,
diff --git a/src/com/android/managedprovisioning/task/InstallPackageTask.java b/src/com/android/managedprovisioning/task/InstallPackageTask.java
index 5eaa43a..fd15f6e 100644
--- a/src/com/android/managedprovisioning/task/InstallPackageTask.java
+++ b/src/com/android/managedprovisioning/task/InstallPackageTask.java
@@ -59,10 +59,17 @@
         mCallback = callback;
         mContext = context;
         mDeviceAdminPackageName = params.inferDeviceAdminPackageName();
-        mDeviceInitializerPackageName = params.mDeviceInitializerComponentName.getPackageName();
         mDownloadedAdmin = !TextUtils.isEmpty(params.mDeviceAdminPackageDownloadLocation);
-        mDownloadedInitializer =
-                !TextUtils.isEmpty(params.mDeviceInitializerPackageDownloadLocation);
+
+        if (params.mDeviceInitializerComponentName != null) {
+            mDeviceInitializerPackageName = params.mDeviceInitializerComponentName.getPackageName();
+            mDownloadedInitializer =
+                    !TextUtils.isEmpty(params.mDeviceInitializerPackageDownloadLocation);
+        } else {
+            mDeviceInitializerPackageName = null;
+            mDownloadedInitializer = false;
+        }
+
         mPackagesToInstall = new HashSet<InstallInfo>();
     }