Fake out ApplicationInfo for APEXs.

This should be generated properly from the AndroidManifest,
but for now this is helpful to proceed with APEX testing.

Test: build
Bug: 123086053
Change-Id: I0e7182e4924c0bc26cee9c9bed520acaffccf905
(cherry picked from commit 3cd9ce3ebda0fbcf118f3f1b700d2eca2814425d)
diff --git a/core/java/android/content/pm/PackageParser.java b/core/java/android/content/pm/PackageParser.java
index 486edf0..557e737 100644
--- a/core/java/android/content/pm/PackageParser.java
+++ b/core/java/android/content/pm/PackageParser.java
@@ -8488,6 +8488,18 @@
     public static PackageInfo generatePackageInfoFromApex(File apexFile, boolean collectCerts)
             throws PackageParserException {
         PackageInfo pi = new PackageInfo();
+
+        // TODO(b/123086053) properly fill in the ApplicationInfo with data from AndroidManifest
+        // Add ApplicationInfo to the PackageInfo.
+        ApplicationInfo ai = new ApplicationInfo();
+        ai = apexFile.getPath();
+        ai.flags = ApplicationInfo.FLAG_SYSTEM | ApplicationInfo.FLAG_INSTALLED;
+        ai.enabled = true;
+        ai.targetSdkVersion = 28;
+        ai.targetSandboxVersion = 0;
+        pi.applicationInfo = ai;
+
+
         // TODO(b/123052859): We should avoid these repeated calls to parseApkLite each time
         // we want to generate information for APEX modules.
         PackageParser.ApkLite apk = PackageParser.parseApkLite(apexFile,