Java Question SimpleLibraryCompiler for brither print2

package michael.vegs;
import com.brother.ptouch.sdk.*;

import anywheresoftware.b4a.BA;
import anywheresoftware.b4a.BA.*;

@Version(3.0f)
@ShortName("BrotherPrintSDK")
@DependsOn(values={"BrotherPrintLibrary"})
public class BrotherPrintSDK {
  
   public void print( final String filePath,final String printerIP){
      
                    Thread trd = new Thread(new Runnable(){
     @Override
       public void run() {
     Printer myPrinter = new Printer();
     PrinterInfo myPrinterInfo = new PrinterInfo();
     PrinterStatus printResult = new PrinterStatus();
     LabelInfo mLabelInfo=new LabelInfo();
    
    
       myPrinterInfo = myPrinter.getPrinterInfo();
       myPrinterInfo.printerModel=PrinterInfo.Model.QL_720NW;
      
       myPrinterInfo.printMode=PrinterInfo.PrintMode.FIT_TO_PAGE;
       myPrinterInfo.port=PrinterInfo.Port.NET;
       myPrinterInfo.paperSize = PrinterInfo.PaperSize.CUSTOM;
       myPrinterInfo.orientation = PrinterInfo.Orientation.PORTRAIT;
       myPrinterInfo.numberOfCopies = 1;
       myPrinterInfo.ipAddress=printerIP;
        //myPrinter.skipStatusCheck=true;
     mLabelInfo.labelNameIndex=LabelInfo.QL700.valueOf("W29H90").ordinal();
       //mLabelInfo.labelNameIndex=5;
       mLabelInfo.isAutoCut = true;
       mLabelInfo.isEndCut =true;
      
       myPrinter.setPrinterInfo(myPrinterInfo);
       myPrinter.setLabelInfo(mLabelInfo);

    
       printResult=myPrinter.printFile(filePath );
       ba.raiseEventFromDifferentThread(this , null, 0,  "eventName" + "_metadata", true, new Object[] {printResult.errorCode.toString()});
     //      }
       }
        });
        trd.start();
                    }
        }

 public void print(final BA ba, final String filePath,final String printerIP){

ba.raiseEventFromDifferentThread(this , null, 0, "myevent_metadata", true, new Object[] {printResult.errorCode.toString()});

Sub Myevent_Metadata (ErrorCode As String)

import com.brother.ptouch.sdk.*;

import anywheresoftware.b4a.BA;
import anywheresoftware.b4a.BA.*;

LogCat connected to: B4A-Bridge: samsung GT-P7300B
--------- beginning of /dev/log/system
--------- beginning of /dev/log/main
** Activity (cust) Pause, UserClosed = false **
sending message to waiting queue (myevent_metadata)
PackageAdded: package:com.facebook.orca
Fatal signal 11 (SIGSEGV) at 0x401f3088 (code=1)
sending message to waiting queue (myevent_metadata)
Fatal signal 11 (SIGSEGV) at 0x401a1088 (code=1)
Killing previous instance (main).
** Activity (main) Create, isFirst = false **
** Activity (main) Resume **
Fatal signal 11 (SIGSEGV) at 0x401ad088 (code=1)
** Activity (main) Pause, UserClosed = false **
running waiting messages (2)
** Activity (cust) Resume **
Installing file.
** Activity (cust) Pause, UserClosed = false **
PackageAdded: package:michael.vegs
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = false **
** Activity (cust) Create, isFirst = true **
** Activity (cust) Resume **