diff --git a/services/core/java/com/android/server/pm/PackageDexOptimizer.java b/services/core/java/com/android/server/pm/PackageDexOptimizer.java
index 2f4f5ab..698d387 100644
--- a/services/core/java/com/android/server/pm/PackageDexOptimizer.java
+++ b/services/core/java/com/android/server/pm/PackageDexOptimizer.java
@@ -39,6 +39,7 @@
 import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
 
@@ -149,6 +150,17 @@
         String[] classLoaderContexts = DexoptUtils.getClassLoaderContexts(
                 pkg.applicationInfo, sharedLibraries);
 
+        // Sanity check that we do not call dexopt with inconsistent data.
+        if (paths.size() != classLoaderContexts.length) {
+            String[] splitCodePaths = pkg.applicationInfo.getSplitCodePaths();
+            throw new IllegalStateException("Inconsistent information "
+                + "between PackageParser.Package and its ApplicationInfo. "
+                + "pkg.getAllCodePaths=" + paths
+                + " pkg.applicationInfo.getBaseCodePath=" + pkg.applicationInfo.getBaseCodePath()
+                + " pkg.applicationInfo.getSplitCodePaths="
+                + (splitCodePaths == null ? "null" : Arrays.toString(splitCodePaths)));
+        }
+
         int result = DEX_OPT_SKIPPED;
         for (int i = 0; i < paths.size(); i++) {
             // Skip paths that have no code.