#26041 In the context menu for a new grid line the command "Delete" is offered, crash on selection

enhancement

minor

#25937

Include logback in TL Studio

defect

major

#25998

TL-Script context help broken

minor

#25999

Disappearing toolbar in tile layout

#26007

Unnecessary scrollbar in HTMLTree

#26019

Buttons in filter dialogs disappeared

#26039

Gridcomponent: Display of context menu for new (transient) row object leads to UnsupportedOperationException

#26040

Partially no label for custom model type

#26041

In the context menu for a new grid line the command "Delete" is offered, crash on selection

#26042

Calendar control in filter dialogs does not work in Modern theme

defect (User-visible)

minor

#26041

In the context menu for a new grid line the command "Delete" is offered, crash on selection

LayoutFramework

com.top_logic.util.error.TopLogicException: Internal error
    at com.top_logic.mig.html.layout.CommandDispatcher.internalDispatchCommand(CommandDispatcher.java:214)
	at com.top_logic.mig.html.layout.CommandDispatcher.internalDispatch(CommandDispatcher.java:130)
    at com.top_logic.mig.html.layout.CommandDispatcher.dispatchCommand(CommandDispatcher.java:123)
	at com.top_logic.mig.html.layout.CommandDispatcher.lambda$0(CommandDispatcher.java:94)
    at com.top_logic.layout.basic.DelegatingCommandModel.internalExecuteCommand(DelegatingCommandModel.java:51)
	at com.top_logic.layout.basic.AbstractCommandModel.executeCommand(AbstractCommandModel.java:45)
    at com.top_logic.layout.basic.CommandModelAdapter.executeCommand(CommandModelAdapter.java:47)
	at com.top_logic.layout.messagebox.MessageBox$ClosingCommand.executeCommand(MessageBox.java:816)
    at com.top_logic.layout.basic.ActivateCommand.execute(ActivateCommand.java:85)
	at com.top_logic.layout.basic.AbstractControlBase.executeCommand(AbstractControlBase.java:888)
    at com.top_logic.layout.basic.component.ControlSupport.executeCommand(ControlSupport.java:221)
	at com.top_logic.layout.basic.component.ControlComponent$DispatchAction.handleCommand(ControlComponent.java:231)
    at com.top_logic.tool.boundsec.CommandHandlerUtil.handleCommand(CommandHandlerUtil.java:27)
	at com.top_logic.mig.html.layout.LayoutComponent.dispatchCommand(LayoutComponent.java:3441)
    at com.top_logic.mig.html.layout.CommandDispatcher.internalDispatchCommand(CommandDispatcher.java:192)
	at com.top_logic.mig.html.layout.CommandDispatcher.internalDispatch(CommandDispatcher.java:130)
    at com.top_logic.mig.html.layout.CommandDispatcher.dispatchCommand(CommandDispatcher.java:123)
	at com.top_logic.base.services.simpleajax.AJAXServlet.processRequest(AJAXServlet.java:638)
	at com.top_logic.base.services.simpleajax.AJAXServlet.doPost(AJAXServlet.java:356)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
	at com.top_logic.util.TopLogicServlet.doService(TopLogicServlet.java:336)
    at com.top_logic.util.TopLogicServlet.inContext(TopLogicServlet.java:193)
	at com.top_logic.util.TopLogicServlet$1.inContext(TopLogicServlet.java:268)
    at com.top_logic.util.TLContextManager.inInteractionInternal(TLContextManager.java:243)
	at com.top_logic.util.TLContextManager.inInteraction(TLContextManager.java:219)
    at com.top_logic.util.TopLogicServlet.enterContext(TopLogicServlet.java:263)
	at com.top_logic.util.TopLogicServlet.service(TopLogicServlet.java:156)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
Caused by: java.lang.UnsupportedOperationException
    at com.top_logic.model.TransientObject.tHandle(TransientObject.java:22)
    at com.top_logic.model.TLObject.tDelete(TLObject.java:181)
	at com.top_logic.layout.component.GenericDeleteCommandHandler.deleteObject(GenericDeleteCommandHandler.java:145)
    at com.top_logic.layout.component.GenericDeleteCommandHandler.inTransaction(GenericDeleteCommandHandler.java:103)
    at com.top_logic.layout.component.GenericDeleteCommandHandler.withEditLock(GenericDeleteCommandHandler.java:92)
	at com.top_logic.layout.component.GenericDeleteCommandHandler.tryExecute(GenericDeleteCommandHandler.java:80)
    at com.top_logic.layout.component.GenericDeleteCommandHandler.handleCommand(GenericDeleteCommandHandler.java:72)
	at com.top_logic.tool.boundsec.CommandHandlerUtil.handleCommand(CommandHandlerUtil.java:27)
    at com.top_logic.mig.html.layout.LayoutComponent.dispatchCommand(LayoutComponent.java:3441)
	at com.top_logic.mig.html.layout.CommandDispatcher.internalDispatchCommand(CommandDispatcher.java:192)
    ... 64 more

Test

Create a new app.
Create a new Type A.
Switch to Instance Admin.
Create a new row; do not apply or save.
Open the context menu on the new row.
Expected behavior: The Delete button is not displayed, or is grayed out, or, when selected, displays a reasonable message instead of an UnsupportedOperationException with an InternalError.