App crashes due to network issue
We find that mobile apps are prone to crashes due to a network issue, mainly because successful network calls return unexpected or no data. And we found that when the field of the app(version 1.9)'s network return data (XML format) is missing, a random value or empty, the app has crashed. the specific crash information is as follows: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.alaskalinuxuser.justcraigslist/com.alaskalinuxuser.justcraigslist.JCView}: java.lang.ArrayIndexOutOfBoundsException: length=4; index=4 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416) 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.ArrayIndexOutOfBoundsException: length=4; index=4 at com.alaskalinuxuser.justcraigslist.JCView.onCreate(JCView.java:221) at android.app.Activity.performCreate(Activity.java:6237) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) ... 9 more java.lang.ArrayIndexOutOfBoundsException: length=4; index=4 at com.alaskalinuxuser.justcraigslist.JCView.onCreate(JCView.java:221) at android.app.Activity.performCreate(Activity.java:6237) 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)
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.alaskalinuxuser.justcraigslist/com.alaskalinuxuser.justcraigslist.JCView}: java.util.regex.PatternSyntaxException: Syntax error in regexp pattern near index 2:
S}TcN{eVDgiwePaY]]KbEME3y6Fkodv]DbqnrM0Cqh0+YFv7xfQ53)(3
+8}5{b[h7lpZO3H6zQQIR$gOYha+03gok
^
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$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$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.util.regex.PatternSyntaxException: Syntax error in regexp pattern near index 2:
S}TcN{eVDgiwePaY]]KbEME3y6Fkodv]DbqnrM0Cqh0+YFv7xfQ53)(3
+8}5{b[h7lpZO3H6zQQIR$gOYha+03gok
^
at java.util.regex.Pattern.compileImpl(Native Method)
at java.util.regex.Pattern.compile(Pattern.java:411)
at java.util.regex.Pattern.(Pattern.java:394)
at java.util.regex.Pattern.compile(Pattern.java:381)
at java.lang.String.split(String.java:1411)
at java.lang.String.split(String.java:1392)
at com.alaskalinuxuser.justcraigslist.JCView.onCreate(JCView.java:220)
at android.app.Activity.performCreate(Activity.java:6237)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
... 9 more
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.alaskalinuxuser.justcraigslist/com.alaskalinuxuser.justcraigslist.JCView}: java.lang.ArrayIndexOutOfBoundsException: length=1; index=1 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416) 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.ArrayIndexOutOfBoundsException: length=1; index=1 at com.alaskalinuxuser.justcraigslist.JCView.mineInformation(JCView.java:373) at com.alaskalinuxuser.justcraigslist.JCView.onCreate(JCView.java:230) at android.app.Activity.performCreate(Activity.java:6237) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) ... 9 more java.lang.ArrayIndexOutOfBoundsException: length=1; index=1 at com.alaskalinuxuser.justcraigslist.JCView.mineInformation(JCView.java:373) at com.alaskalinuxuser.justcraigslist.JCView.onCreate(JCView.java:230) at android.app.Activity.performCreate(Activity.java:6237) 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)