Commit f12a1f10 authored Sep 13, 2017 by Evan Laird

Log number of known dependencies if Dependency throws an exception

This can provide a modicum of insight into why Dependency may be failing
to retrieve the required class. If, for instance, there is a race
condition then we would expect to see a smaller number of known
dependencies.

Dependency.

Bug: 65560049
Test: request a non-registered depdency from Depdency.java, then read
the logs.

Change-Id: I583287d0b59da321ab590f53a86c2d9b357304b2

parent 6f76cee0

packages/SystemUI/src/com/android/systemui/Dependency.java

+2 −1

Original line number	Diff line number	Diff line
		@@ -348,7 +348,8 @@ public class Dependency extends SystemUI {
		@SuppressWarnings("unchecked")
		DependencyProvider<T> provider = mProviders.get(cls);
		if (provider == null) {
		throw new IllegalArgumentException("Unsupported dependency " + cls);
		throw new IllegalArgumentException("Unsupported dependency " + cls
		+ ". " + mProviders.size() + " providers known.");
		}
		return provider.createDependency();
		}