diff --git a/services/core/java/com/android/server/pm/PackageDexOptimizer.java b/services/core/java/com/android/server/pm/PackageDexOptimizer.java
index 5e1ed03..51575a4 100644
--- a/services/core/java/com/android/server/pm/PackageDexOptimizer.java
+++ b/services/core/java/com/android/server/pm/PackageDexOptimizer.java
@@ -87,9 +87,6 @@
     // One minute over PM WATCHDOG_TIMEOUT
     private static final long WAKELOCK_TIMEOUT_MS = WATCHDOG_TIMEOUT + 1000 * 60;
 
-    /** Special library name that skips shared libraries check during compilation. */
-    public static final String SKIP_SHARED_LIBRARY_CHECK = "&";
-
     @GuardedBy("mInstallLock")
     private final Installer mInstaller;
     private final Object mInstallLock;
@@ -399,23 +396,23 @@
             Slog.e(TAG, "Could not infer CE/DE storage for package " + info.packageName);
             return DEX_OPT_FAILED;
         }
-        Log.d(TAG, "Running dexopt on: " + path
-                + " pkg=" + info.packageName + " isa=" + dexUseInfo.getLoaderIsas()
-                + " dexoptFlags=" + printDexoptFlags(dexoptFlags)
-                + " target-filter=" + compilerFilter);
-
-        String classLoaderContext;
+        String classLoaderContext = null;
         if (dexUseInfo.isUnknownClassLoaderContext() || dexUseInfo.isVariableClassLoaderContext()) {
-            // If we have an unknown (not yet set), or a variable class loader chain, compile
-            // without a context and mark the oat file with SKIP_SHARED_LIBRARY_CHECK. Note that
-            // this might lead to a incorrect compilation.
-            // TODO(calin): We should just extract in this case.
-            classLoaderContext = SKIP_SHARED_LIBRARY_CHECK;
+            // If we have an unknown (not yet set), or a variable class loader chain. Just extract
+            // the dex file.
+            compilerFilter = "extract";
         } else {
             classLoaderContext = dexUseInfo.getClassLoaderContext();
         }
 
         int reason = options.getCompilationReason();
+        Log.d(TAG, "Running dexopt on: " + path
+                + " pkg=" + info.packageName + " isa=" + dexUseInfo.getLoaderIsas()
+                + " reason=" + getReasonName(reason)
+                + " dexoptFlags=" + printDexoptFlags(dexoptFlags)
+                + " target-filter=" + compilerFilter
+                + " class-loader-context=" + classLoaderContext);
+
         try {
             for (String isa : dexUseInfo.getLoaderIsas()) {
                 // Reuse the same dexopt path as for the primary apks. We don't need all the
diff --git a/services/core/java/com/android/server/pm/dex/DexoptUtils.java b/services/core/java/com/android/server/pm/dex/DexoptUtils.java
index 93ee44c..91ad11e 100644
--- a/services/core/java/com/android/server/pm/dex/DexoptUtils.java
+++ b/services/core/java/com/android/server/pm/dex/DexoptUtils.java
@@ -22,7 +22,6 @@
 import android.util.SparseArray;
 
 import com.android.internal.os.ClassLoaderFactory;
-import com.android.server.pm.PackageDexOptimizer;
 
 import java.io.File;
 import java.util.List;
@@ -275,15 +274,11 @@
     /**
      * Encodes a single class loader dependency starting from {@param path} and
      * {@param classLoaderName}.
-     * When classpath is {@link PackageDexOptimizer#SKIP_SHARED_LIBRARY_CHECK}, the method returns
-     * the same. This special property is used only during OTA.
      * NOTE: Keep this in sync with the dexopt expectations! Right now that is either "PCL[path]"
      * for a PathClassLoader or "DLC[path]" for a DelegateLastClassLoader.
      */
     /*package*/ static String encodeClassLoader(String classpath, String classLoaderName) {
-        if (classpath.equals(PackageDexOptimizer.SKIP_SHARED_LIBRARY_CHECK)) {
-            return classpath;
-        }
+        classpath.getClass();  // Throw NPE if classpath is null
         String classLoaderDexoptEncoding = classLoaderName;
         if (ClassLoaderFactory.isPathClassLoaderName(classLoaderName)) {
             classLoaderDexoptEncoding = "PCL";
@@ -306,16 +301,10 @@
     /**
      * Links to dependencies together in a format accepted by dexopt.
      * For the special case when either of cl1 or cl2 equals
-     * {@link PackageDexOptimizer#SKIP_SHARED_LIBRARY_CHECK}, the method returns the same. This
-     * property is used only during OTA.
      * NOTE: Keep this in sync with the dexopt expectations! Right now that is a list of split
      * dependencies {@see encodeClassLoader} separated by ';'.
      */
     /*package*/ static String encodeClassLoaderChain(String cl1, String cl2) {
-        if (cl1.equals(PackageDexOptimizer.SKIP_SHARED_LIBRARY_CHECK) ||
-                cl2.equals(PackageDexOptimizer.SKIP_SHARED_LIBRARY_CHECK)) {
-            return PackageDexOptimizer.SKIP_SHARED_LIBRARY_CHECK;
-        }
         if (cl1.isEmpty()) return cl2;
         if (cl2.isEmpty()) return cl1;
         return cl1 + ";" + cl2;
diff --git a/services/tests/servicestests/src/com/android/server/pm/dex/DexoptUtilsTest.java b/services/tests/servicestests/src/com/android/server/pm/dex/DexoptUtilsTest.java
index 1542120..aa51ecd 100644
--- a/services/tests/servicestests/src/com/android/server/pm/dex/DexoptUtilsTest.java
+++ b/services/tests/servicestests/src/com/android/server/pm/dex/DexoptUtilsTest.java
@@ -16,9 +16,6 @@
 
 package com.android.server.pm.dex;
 
-import com.android.server.pm.PackageDexOptimizer;
-
-import static com.android.server.pm.PackageDexOptimizer.SKIP_SHARED_LIBRARY_CHECK;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
@@ -412,12 +409,6 @@
 
     @Test
     public void testEncodeClassLoader() {
-        assertEquals(SKIP_SHARED_LIBRARY_CHECK, DexoptUtils.encodeClassLoader(
-                SKIP_SHARED_LIBRARY_CHECK, "dalvik.system.PathClassLoader"));
-        assertEquals(SKIP_SHARED_LIBRARY_CHECK, DexoptUtils.encodeClassLoader(
-                SKIP_SHARED_LIBRARY_CHECK, "dalvik.system.DexClassLoader"));
-        assertEquals(SKIP_SHARED_LIBRARY_CHECK, DexoptUtils.encodeClassLoader(
-                SKIP_SHARED_LIBRARY_CHECK, "dalvik.system.DelegateLastClassLoader"));
         assertEquals("PCL[xyz]", DexoptUtils.encodeClassLoader("xyz",
                 "dalvik.system.PathClassLoader"));
         assertEquals("PCL[xyz]", DexoptUtils.encodeClassLoader("xyz",
@@ -435,15 +426,8 @@
 
     @Test
     public void testEncodeClassLoaderChain() {
-        assertEquals(SKIP_SHARED_LIBRARY_CHECK, DexoptUtils.encodeClassLoaderChain(
-                SKIP_SHARED_LIBRARY_CHECK, "PCL[a]"));
-        assertEquals(SKIP_SHARED_LIBRARY_CHECK, DexoptUtils.encodeClassLoaderChain("PCL[a]",
-                SKIP_SHARED_LIBRARY_CHECK));
         assertEquals("PCL[a];DLC[b]", DexoptUtils.encodeClassLoaderChain("PCL[a]",
                 "DLC[b]"));
-        assertEquals(SKIP_SHARED_LIBRARY_CHECK, DexoptUtils.encodeClassLoaderChain("PCL[a]",
-                SKIP_SHARED_LIBRARY_CHECK));
-
         try {
             DexoptUtils.encodeClassLoaderChain("a", null);
             fail(); // exception is expected