Got null source node fromIndex accessibility - Retrying..

[shauvik]

I found that often PUMA would run into a NullPointerException inside LaunchApp.getRootNode()
Changing maxRetry and waitInterval to 100 and 1000 (1s) seems to work temporarily.

Error Log:

INSTRUMENTATION_STATUS: numtests=1
INSTRUMENTATION_STATUS: stream=
nsl.stg.tests.LaunchApp:
INSTRUMENTATION_STATUS: id=UiAutomatorTestRunner
INSTRUMENTATION_STATUS: test=testMain
INSTRUMENTATION_STATUS: class=nsl.stg.tests.LaunchApp
INSTRUMENTATION_STATUS: current=1
INSTRUMENTATION_STATUS_CODE: 1
1413767882551: Traffic: 0
1413767883009: --------------- iter 0
Got null source node fromIndex accessibility - Retrying...
Got null source node fromIndex accessibility - Retrying...
Got null source node fromIndex accessibility - Retrying...
node or class name is NULL
FATAL: getClickables() source is NULL
1413767884944: Processing NULL
1413767888313: New UIState: [0, 0/0]
1413767888318: UI_LOAD_DONE
INSTRUMENTATION_STATUS: numtests=1
INSTRUMENTATION_STATUS: stream=
Error in testMain:
java.lang.NullPointerException
        at nsl.stg.tests.LaunchApp.testMain(LaunchApp.java:369)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at nsl.stg.uiautomator.testrunner.MyUiAutomatorTestRunner.start(MyUiAutomatorTestRunner.java:147)
        at nsl.stg.uiautomator.testrunner.MyUiAutomatorTestRunner.run(MyUiAutomatorTestRunner.java:82)
        at nsl.stg.uiautomator.cmds.MyRunTestCommand.run(MyRunTestCommand.java:73)
        at nsl.stg.uiautomator.cmds.MyLauncher.main(MyLauncher.java:65)
        at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
        at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:243)
        at dalvik.system.NativeStart.main(Native Method)
INSTRUMENTATION_STATUS: id=UiAutomatorTestRunner
INSTRUMENTATION_STATUS: test=testMain
INSTRUMENTATION_STATUS: class=nsl.stg.tests.LaunchApp
INSTRUMENTATION_STATUS: stack=java.lang.NullPointerException
        at nsl.stg.tests.LaunchApp.testMain(LaunchApp.java:369)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at nsl.stg.uiautomator.testrunner.MyUiAutomatorTestRunner.start(MyUiAutomatorTestRunner.java:147)
        at nsl.stg.uiautomator.testrunner.MyUiAutomatorTestRunner.run(MyUiAutomatorTestRunner.java:82)
        at nsl.stg.uiautomator.cmds.MyRunTestCommand.run(MyRunTestCommand.java:73)
        at nsl.stg.uiautomator.cmds.MyLauncher.main(MyLauncher.java:65)
        at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
        at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:243)
        at dalvik.system.NativeStart.main(Native Method)

INSTRUMENTATION_STATUS: current=1
INSTRUMENTATION_STATUS_CODE: -1
INSTRUMENTATION_STATUS: stream=
Test results for WatcherResultPrinter=.E
Time: 24.399

FAILURES!!!
Tests run: 1,  Failures: 0,  Errors: 1


INSTRUMENTATION_STATUS_CODE: -1