xmlSax Null Pointer Exception

[abner69]

Hello All!

I seem to be stuck with a problem on parsing a simple xml file - the xml sax parser returns a null pointer exception.

the xml file is languages.xml and is in the follow format:

<?xml version="1.0" encoding="UTF8"?>
<listing>
<language>
   <number>0</number>
   <name>Engish</name>
   <abbrev>en</abbrev>
   <backbreak>false</backbreak>
   <vod>Verse of the Day</vod>
    <imgfile>us-48.png</imgfile>
</language>
<language>
   <number>1</number>
   <name>Spanish</name>
   <abbrev>es</abbrev>
   <backbreak>false</backbreak>
   <vod>Verso del Dia</vod>
    <imgfile>us-48.png</imgfile>
</language>
<language>
   <number>2</number>
   <name>Portuguese</name>
   <abbrev>pt</abbrev>
   <backbreak>false</backbreak>
   <vod>Versículo do Dia</vod>
    <imgfile>pt-48.png</imgfile>
</language>
</listing>

it is saved as a UTF-8 encoded file, and then copied from dir assets to the default external directory at runtime.

Next, I initialize the input stream, and begin parsing..

Sub Carga_Idiomas
Dim In As InputStream

'Try

   In = File.OpenInput(File.DirDefaultExternal,"languages.xml")
   
   If In.IsInitialized=True Then 'puedo acceder??
      Log("está abierto!") 'sip
      Log("Bytes disponsible: " & In.BytesAvailable)
   End If
   
   Parser.Parse(In, "Parser")
   
   
   In.Close
'Catch
   Log("languages.xml esta dañado")
'End Try

End Sub

I know the file is opened, because as you can see below, there are bytes available... but here is what the logs show...

está abierto!


Bytes disponsible: 619
vod_svc_carga_idiomas (java line: 133)
java.lang.NullPointerException
   at anywheresoftware.b4a.objects.SaxParser.parse(SaxParser.java:76)
   at anywheresoftware.b4a.objects.SaxParser.Parse(SaxParser.java:71)
   at com.ifn.vod.vod_svc._carga_idiomas(vod_svc.java:133)
   at com.ifn.vod.vod_svc._service_create(vod_svc.java:432)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:511)
   at anywheresoftware.b4a.BA.raiseEvent2(BA.java:167)
   at anywheresoftware.b4a.BA.raiseEvent(BA.java:151)
   at com.ifn.vod.vod_svc.onCreate(vod_svc.java:42)
   at android.app.ActivityThread.handleCreateService(ActivityThread.java:2253)
   at android.app.ActivityThread.access$1600(ActivityThread.java:123)
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1201)
   at android.os.Handler.dispatchMessage(Handler.java:99)
   at android.os.Looper.loop(Looper.java:137)
   at android.app.ActivityThread.main(ActivityThread.java:4424)


   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:511)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
   at dalvik.system.NativeStart.main(Native Method)
java.lang.RuntimeException: Unable to create service com.ifn.vod.vod_svc: java.lang.RuntimeException: java.lang.NullPointerException


   at android.app.ActivityThread.handleCreateService(ActivityThread.java:2263)
   at android.app.ActivityThread.access$1600(ActivityThread.java:123)
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1201)
   at android.os.Handler.dispatchMessage(Handler.java:99)
   at android.os.Looper.loop(Looper.java:137)
   at android.app.ActivityThread.main(ActivityThread.java:4424)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:511)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
   at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.RuntimeException: java.lang.NullPointerException
   at anywheresoftware.b4a.BA.raiseEvent2(BA.java:193)
   at anywheresoftware.b4a.BA.raiseEvent(BA.java:151)


   at com.ifn.vod.vod_svc.onCreate(vod_svc.java:42)
   at android.app.ActivityThread.handleCreateService(ActivityThread.java:2253)
   ... 10 more
Caused by: java.lang.NullPointerException
   at anywheresoftware.b4a.objects.SaxParser.parse(SaxParser.java:76)
   at anywheresoftware.b4a.objects.SaxParser.Parse(SaxParser.java:71)
   at com.ifn.vod.vod_svc._carga_idiomas(vod_svc.java:133)
   at com.ifn.vod.vod_svc._service_create(vod_svc.java:432)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:511)
   at anywheresoftware.b4a.BA.raiseEvent2(BA.java:167)
   ... 13 more

any help would be greatly appreciated.


...Pablo

 

[Erel]

Have you initialized the parser?

 

[abner69]

uffff.... that was it! Now, do I feel stupid!

Thanks erel, your the greatest!

...Pablo