diff --git a/core/tests/coretests/src/android/content/pm/dex/DexMetadataHelperTest.java b/core/tests/coretests/src/android/content/pm/dex/DexMetadataHelperTest.java
index 1ca879cde6c89224f4db5653745fdf10d4897c4a..49849ee72a18df971b7af3b8e59662c0474d9213 100644
--- a/core/tests/coretests/src/android/content/pm/dex/DexMetadataHelperTest.java
+++ b/core/tests/coretests/src/android/content/pm/dex/DexMetadataHelperTest.java
@@ -36,12 +36,12 @@ import androidx.test.runner.AndroidJUnit4;
 
 import com.android.frameworks.coretests.R;
 
-import libcore.testing.io.TestIoUtils;
-
 import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 import org.junit.runner.RunWith;
 
 import java.io.File;
@@ -60,21 +60,14 @@ public class DexMetadataHelperTest {
     private static final String APK_FILE_EXTENSION = ".apk";
     private static final String DEX_METADATA_FILE_EXTENSION = ".dm";
 
+    @Rule
+    public TemporaryFolder mTemporaryFolder = new TemporaryFolder();
+
     private File mTmpDir = null;
 
     @Before
-    public void setUp() {
-        mTmpDir = TestIoUtils.createTemporaryDirectory("DexMetadataHelperTest");
-    }
-
-    @After
-    public void tearDown() {
-        if (mTmpDir != null) {
-            File[] files = mTmpDir.listFiles();
-            for (File f : files) {
-                f.delete();
-            }
-        }
+    public void setUp() throws IOException {
+        mTmpDir = mTemporaryFolder.newFolder("DexMetadataHelperTest");
     }
 
     private File createDexMetadataFile(String apkFileName) throws IOException {
diff --git a/services/tests/servicestests/src/com/android/server/pm/PackageInstallerSessionTest.java b/services/tests/servicestests/src/com/android/server/pm/PackageInstallerSessionTest.java
index d3f33a15273466fec9b4ac3aa471079b3fed1dc0..43bcd4fc8436d9abbbdcd894a0fd466db24d496b 100644
--- a/services/tests/servicestests/src/com/android/server/pm/PackageInstallerSessionTest.java
+++ b/services/tests/servicestests/src/com/android/server/pm/PackageInstallerSessionTest.java
@@ -36,7 +36,9 @@ import com.android.internal.util.FastXmlSerializer;
 import libcore.io.IoUtils;
 
 import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
@@ -56,6 +58,9 @@ import java.util.List;
 
 @RunWith(AndroidJUnit4.class)
 public class PackageInstallerSessionTest {
+    @Rule
+    public TemporaryFolder mTemporaryFolder = new TemporaryFolder();
+
     private File mTmpDir;
     private AtomicFile mSessionsFile;
     private static final String TAG_SESSIONS = "sessions";
@@ -65,7 +70,7 @@ public class PackageInstallerSessionTest {
 
     @Before
     public void setUp() throws Exception {
-        mTmpDir = IoUtils.createTemporaryDirectory("PackageInstallerSessionTest");
+        mTmpDir = mTemporaryFolder.newFolder("PackageInstallerSessionTest");
         mSessionsFile = new AtomicFile(
                 new File(mTmpDir.getAbsolutePath() + "/sessions.xml"), "package-session");
         MockitoAnnotations.initMocks(this);
diff --git a/services/tests/servicestests/src/com/android/server/pm/PackageParserTest.java b/services/tests/servicestests/src/com/android/server/pm/PackageParserTest.java
index 3c3721c6b20a4a690adda0c68740b82365584eee..13a8eb1d7fada908a4ed1f0a63cd4122a7a38389 100644
--- a/services/tests/servicestests/src/com/android/server/pm/PackageParserTest.java
+++ b/services/tests/servicestests/src/com/android/server/pm/PackageParserTest.java
@@ -43,13 +43,14 @@ import androidx.test.filters.MediumTest;
 import androidx.test.filters.SmallTest;
 import androidx.test.runner.AndroidJUnit4;
 
-import libcore.io.IoUtils;
-
 import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
 import org.junit.runner.RunWith;
 
 import java.io.File;
+import java.io.IOException;
 import java.lang.reflect.Array;
 import java.lang.reflect.Field;
 import java.nio.charset.StandardCharsets;
@@ -62,13 +63,16 @@ import java.util.Set;
 @RunWith(AndroidJUnit4.class)
 @MediumTest
 public class PackageParserTest {
+    @Rule
+    public TemporaryFolder mTemporaryFolder = new TemporaryFolder();
+
     private File mTmpDir;
     private static final File FRAMEWORK = new File("/system/framework/framework-res.apk");
 
     @Before
-    public void setUp() {
+    public void setUp() throws IOException {
         // Create a new temporary directory for each of our tests.
-        mTmpDir = IoUtils.createTemporaryDirectory("PackageParserTest");
+        mTmpDir = mTemporaryFolder.newFolder("PackageParserTest");
     }
 
     @Test