B4J Question java.util.NoSuchElementException

[schimanski]

Why do i get always this exception, when I remove an key from a map with

Private Kontakte as Map
..
Kontakte.Remove(Kontakte.GetKeyAt(i))

Program started.
Error occurred on line: 369 (main).
java.util.NoSuchElementException
at java.util.LinkedHashMap$LinkedHashIterator.nextEntry(LinkedHashMap.java:396)
at java.util.LinkedHashMap$EntryIterator.next(LinkedHashMap.java:413)
at java.util.LinkedHashMap$EntryIterator.next(LinkedHashMap.java:412)
at anywheresoftware.b4a.objects.collections.Map$MyMap.getEntry(Map.java:210)
at anywheresoftware.b4a.objects.collections.Map$MyMap.getValue(Map.java:199)
at anywheresoftware.b4a.objects.collections.Map.GetValueAt(Map.java:108)
at eisdesktop.stamm.main._btnloeschen_action(main.java:318)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:563)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:224)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:156)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:93)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:82)
at anywheresoftware.b4a.BA$2.run(BA.java:165)
at com.sun.javafx.application.PlatformImpl$4$1.run(PlatformImpl.java:179)
at com.sun.javafx.application.PlatformImpl$4$1.run(PlatformImpl.java:176)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl$4.run(PlatformImpl.java:176)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:76)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.access$100(WinApplication.java:17)
at com.sun.glass.ui.win.WinApplication$3$1.run(WinApplication.java:67)
at java.lang.Thread.run(Thread.java:744)

 

[Daestrum]

The only way I can re-create this error is trying to remove an item beyond the end of the map.
Are you checking i < map.size as a map.size of 3 contains elements 0,1 and 2

 

[schimanski]

Yes, thank you. That was the problem. I removed one item to much.....