B4J Question Error : ConvertBytesToObject

[nazilabdulla]

Error occurred on line: 55
java.lang.RuntimeException: java.lang.ClassNotFoundException: b4j.example.addquestion$_dbcommand
    at anywheresoftware.b4a.randomaccessfile.B4XSerializator.readType(B4XSerializator.java:297)
    at anywheresoftware.b4a.randomaccessfile.B4XSerializator.readObject(B4XSerializator.java:357)
    at anywheresoftware.b4a.randomaccessfile.B4XSerializator.readMap(B4XSerializator.java:231)
    at anywheresoftware.b4a.randomaccessfile.B4XSerializator.readObject(B4XSerializator.java:347)
    at anywheresoftware.b4a.randomaccessfile.B4XSerializator.ReadObject(B4XSerializator.java:112)
    at anywheresoftware.b4a.randomaccessfile.B4XSerializator.ConvertBytesToObject(B4XSerializator.java:82)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:632)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:234)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:167)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:91)
    at anywheresoftware.b4a.shell.ShellBA.raiseEvent2(ShellBA.java:98)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:78)
    at anywheresoftware.b4j.object.JServlet$Handle.run(JServlet.java:130)
    at anywheresoftware.b4a.keywords.SimpleMessageLoop.runMessageLoop(SimpleMessageLoop.java:30)
    at anywheresoftware.b4a.StandardBA.startMessageLoop(StandardBA.java:26)
    at anywheresoftware.b4a.shell.ShellBA.startMessageLoop(ShellBA.java:119)
    at anywheresoftware.b4a.keywords.Common.StartMessageLoop(Common.java:153)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:309)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:167)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:91)
    at anywheresoftware.b4a.shell.ShellBA.raiseEvent2(ShellBA.java:98)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:78)
    at b4j.example.main.main(main.java:29)
Caused by: java.lang.ClassNotFoundException: b4j.example.addquestion$_dbcommand
    at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at anywheresoftware.b4a.randomaccessfile.RandomAccessFile.readTypeClass(RandomAccessFile.java:525)
    at anywheresoftware.b4a.randomaccessfile.B4XSerializator.readType(B4XSerializator.java:274)
    ... 34 more
(Exception) java.lang.Exception: java.lang.reflect.InvocationTargetException

This is the error message while I use jRDC2 .
Connection is Success while I checked in browser.

Dim ser As B4XSerializator
    Dim bytes() As Byte
    bytes=Bit.InputStreamToBytes(in)
    Dim m As Map = ser.ConvertBytesToObject(bytes)

Error is occured in Last line where ConvertBytesToObject.

Your earliest reply is appreciable
Thanks in advance

 

[LWGShane]

Do you have the following in your Main module?

Type DBResult (Tag As Object, Columns As Map, Rows As List)
Type DBCommand (Name As String, Parameters() As Object)

More info: https://www.b4x.com/android/forum/t...ation-of-rdc-remote-database-connector.61801/

 

[nazilabdulla]

Do you have the following in your Main module?

Type DBResult (Tag As Object, Columns As Map, Rows As List)
Type DBCommand (Name As String, Parameters() As Object)

More info: https://www.b4x.com/android/forum/t...ation-of-rdc-remote-database-connector.61801/

Yes , I have . But it is used is Class Module, is it any difference ?

 

[nazilabdulla]

Yes. In got the result.

Type DBResult (Tag As Object, Columns As Map, Rows As List)
Type DBCommand (Name As String, Parameters() As Object)

It must be declared in Main Module, I declared in class module