commit cef70f2a3160d8463dc9ed6b0fb512203561c676
author Yifan Hong <elsk@google.com> Wed Mar 15 18:57:42 2017 -0700
committer gitbuildkicker <android-build@google.com> Thu Mar 16 18:18:37 2017 -0700
tree 058f70f26d64fe814b854a32e28b8bf190b9f078
parent 71fbc4a694a9031f677dcea278e0697316a088bb

Add test for non-GC'd parcel.

Test: hidl_test_java
Bug: 36088202
Change-Id: I9ac3771b9571ea63a00005d178ca0d82ef60263d
(cherry picked from commit 2e4d670350c58bb62ef1d86bcba271faf2e12633)

test/java_test/src/com/android/commands/hidl_test_java/HidlTestJava.java

diff --git a/test/java_test/src/com/android/commands/hidl_test_java/HidlTestJava.java b/test/java_test/src/com/android/commands/hidl_test_java/HidlTestJava.java
index 4864371..dbdbb04 100644
--- a/test/java_test/src/com/android/commands/hidl_test_java/HidlTestJava.java
+++ b/test/java_test/src/com/android/commands/hidl_test_java/HidlTestJava.java
@@ -791,6 +791,25 @@
             Expect(proxy.toString(), IBaz.kInterfaceName + "@Proxy");
         }
 
+        {
+            // Ensure that native parcel is cleared even if the corresponding
+            // Java object isn't GC'd.
+            ArrayList<Integer> data4K = new ArrayList<>(1024);
+            for (int i = 0; i < 1024; i++) {
+                data4K.add(i);
+            }
+
+            for (int i = 0; i < 1024; i++) {
+                // If they are not properly cleaned up, these calls will put 4MB of data in
+                // kernel binder buffer, and will fail.
+                try {
+                    proxy.mapThisVector(data4K);
+                } catch (RemoteException ex) {
+                    throw new RuntimeException("Failed at call #" + Integer.toString(i), ex);
+                }
+            }
+        }
+
         // --- DEATH RECIPIENT TESTING ---
         // This must always be done last, since it will kill the native server process
         HidlDeathRecipient recipient1 = new HidlDeathRecipient();