Fix test crash because of concurrent access to mRoot.

Bug: 181072557
Test: atest DocumentsUIGoogleTests
Change-Id: I1f80afd366dcadcefd2f123006fa1d78e10b54d0

parent f0a49a12

src/com/android/documentsui/roots/ProvidersCache.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -439,7 +439,7 @@ public class ProvidersCache implements ProvidersAccess, LookupApplicationName {
		waitForFirstLoad();
		loadStoppedAuthorities();
		synchronized (mLock) {
		return mRoots.values();
		return new HashSet<>(mRoots.values());
		}
		}