Natty crashes on signed builds

[azurh]

The Natty parser works well on debug builds, but crashes on signed ones.

It worked perfectly a year ago.
Now, I tried many possible combinations for including this library in my app (Maven, local .jar etc.)

01-18 13:56:53.820 23329-23329/com.zaphiry.android E/CrashlyticsCore: Failed to execute task.
                                                                        java.util.concurrent.TimeoutException
                                                                            at java.util.concurrent.FutureTask.get(FutureTask.java:177)
                                                                            at com.crashlytics.android.core.CrashlyticsExecutorServiceWrapper.executeSyncLoggingException(CrashlyticsExecutorServiceWrapper.java:44)
                                                                            at com.crashlytics.android.core.CrashlyticsUncaughtExceptionHandler.uncaughtException(CrashlyticsUncaughtExceptionHandler.java:251)
                                                                            at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:693)
                                                                            at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:690)
01-18 13:56:53.821 23329-23329/com.zaphiry.android E/AndroidRuntime: FATAL EXCEPTION: main
                                                                       Process: com.zaphiry.android, PID: 23329
                                                                       java.lang.NoClassDefFoundError: Failed resolution of: Lcom/joestelmach/natty/Parser;
                                                                           at com.tww.six.SplashActivity.onCreate(SplashActivity.java:59)
                                                                           at android.app.Activity.performCreate(Activity.java:6251)
                                                                           at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
                                                                           at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
                                                                           at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
                                                                           at android.app.ActivityThread.-wrap11(ActivityThread.java)
                                                                           at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
                                                                           at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                           at android.os.Looper.loop(Looper.java:148)
                                                                           at android.app.ActivityThread.main(ActivityThread.java:5417)
                                                                           at java.lang.reflect.Method.invoke(Native Method)
                                                                           at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
                                                                           at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
                                                                        Caused by: java.lang.ClassNotFoundException: Didn't find class "com.joestelmach.natty.Parser" on path: DexPathList[[zip file "/data/app/com.zaphiry.android-2/base.apk"],nativeLibraryDirectories=[/data/app/com.zaphiry.android-2/lib/arm, /vendor/lib, /system/lib]]
                                                                           at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
                                                                           at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
                                                                           at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
                                                                           at com.tww.six.SplashActivity.onCreate(SplashActivity.java:59) 
                                                                           at android.app.Activity.performCreate(Activity.java:6251) 
                                                                           at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
                                                                           at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
                                                                           at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
                                                                           at android.app.ActivityThread.-wrap11(ActivityThread.java) 
                                                                           at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
                                                                           at android.os.Handler.dispatchMessage(Handler.java:102) 
                                                                           at android.os.Looper.loop(Looper.java:148) 
                                                                           at android.app.ActivityThread.main(ActivityThread.java:5417) 
                                                                           at java.lang.reflect.Method.invoke(Native Method) 
                                                                           at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
                                                                           at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
                                                                       	Suppressed: java.lang.ClassNotFoundException: com.joestelmach.natty.Parser
                                                                           at java.lang.Class.classForName(Native Method)
                                                                           at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
                                                                           at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
                                                                           at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
                                                                           		... 14 more
                                                                        Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available

[azurh]

I finally have managed to include Natty in my app. I went to the Maven repository, searched for Natty, and then downloaded all the jar dependencies (which are listed).

Now my dependencies look like this:

// natty
compile files('libs/natty/ical4j-2.0.0.jar')
compile files('libs/natty/antlr-runtime-3.5.2.jar')
compile files('libs/natty/natty-0.12.jar')
compile files('libs/natty/slf4j-android-1.7.22.jar')
compile files('libs/natty/slf4j-api-1.7.22.jar')