It looks like ActivityManager.getRunningAppProcesses can return null: http://developer.android.com/reference/android/app/ActivityManager.html#getRunningAppProcesses()

LeakCanaryInternals.isInServiceProcess() doesn't seem to check for this case.

Stack trace excerpt:

java.lang.RuntimeException: Unable to create application [...]: java.lang.NullPointerException: Attempt to invoke interface method 'java.util.Iterator java.util.List.iterator()' on a null object reference
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4710)
at android.app.ActivityThread.-wrap1(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1405)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.NullPointerException: Attempt to invoke interface method 'java.util.Iterator java.util.List.iterator()' on a null object reference
at com.squareup.leakcanary.internal.LeakCanaryInternals.isInServiceProcess(LeakCanaryInternals.java:117)
at com.squareup.leakcanary.LeakCanary.isInAnalyzerProcess(LeakCanary.java:237)
at com.squareup.leakcanary.LeakCanary.install(LeakCanary.java:77)
at com.squareup.leakcanary.LeakCanary.install(LeakCanary.java:42)
[...]