Catch and log exceptions when enabling tracing.

Due to an android gradle bug calls to forceEnableAppTracing() may
fail with NoSuchMethodError at runtime.
Instead of crashing, just catch and log this exception.

Author: brettchabot

runner/monitor/CHANGELOG.md

@@ -6,6 +6,8 @@
 
 **Bug Fixes**
 
+* Catch and log NoSuchMethodError on forceEnableAppTracing calls
+
 **New Features**
 
 **Breaking Changes**

runner/monitor/java/androidx/test/platform/tracing/AndroidXTracer.java

@@ -59,6 +59,12 @@ public AndroidXTracer enableTracing() {
       // The AndroidX call can fail if reflection is not allowed.
       // We want to log the error yet we should not break any test in this case.
       Log.e(TAG, "enableTracing failed", e);
+    } catch (NoSuchMethodError e) {
+      // This can occur if an androidx.tracing < 1.1.0 is put on classpath instead.
+      // See http://issuetracker.google.com/349628366).
+      // We want to log the error yet we should not break any test in this case.
+      Log.e(TAG, "enableTracing failed. "
+              + "You may need to upgrade your androidx.tracing:tracing version", e);
     }
     return this;
   }