Close the returned file descriptior (1/n)

As suggested by the comment:
https://cs.corp.google.com/android/frameworks/base/core/java/android/app/UiAutomation.java?rcl=55a225ade4016b9dde04a3d4b4d25db761b1ccbf&l=1127

Bug: 143211397
Test: atest StagedRollbackTest
Change-Id: I45a5e5fe2188f3172b42f868fe2c4853173451bd

1 files changed, 5 insertions, 1 deletions

diff --git a/tests/RollbackTest/RollbackTest/src/com/android/tests/rollback/StagedRollbackTest.java b/tests/RollbackTest/RollbackTest/src/com/android/tests/rollback/StagedRollbackTest.java
index 79b8b4623cd8..b17a1d987ac9 100644
--- a/tests/RollbackTest/RollbackTest/src/com/android/tests/rollback/StagedRollbackTest.java
+++ b/tests/RollbackTest/RollbackTest/src/com/android/tests/rollback/StagedRollbackTest.java
@@ -32,6 +32,7 @@ import android.content.pm.PackageInfo;
 import android.content.pm.PackageInstaller;
 import android.content.rollback.RollbackInfo;
 import android.content.rollback.RollbackManager;
+import android.os.ParcelFileDescriptor;
 import android.provider.DeviceConfig;
 import android.text.TextUtils;
 
@@ -46,6 +47,8 @@ import com.android.cts.rollback.lib.Rollback;
 import com.android.cts.rollback.lib.RollbackUtils;
 import com.android.internal.R;
 
+import libcore.io.IoUtils;
+
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
@@ -332,7 +335,8 @@ public class StagedRollbackTest {
     }
 
     private void runShellCommand(String cmd) {
-        InstrumentationRegistry.getInstrumentation().getUiAutomation()
+        ParcelFileDescriptor pfd = InstrumentationRegistry.getInstrumentation().getUiAutomation()
                 .executeShellCommand(cmd);
+        IoUtils.closeQuietly(pfd);
     }
 }