Closing a custom window with an On Close() argument can cause JMP® to crash

[#1]

In JMP, closing a custom window with an <<On Close() argument can cause JMP to crash.  The problem occurs on Windows operating systems.

Example - the following code can cause the crash:

Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA\Big Class.jmp" );

win = New Window( "Test",
    <<On Close( Close( dt, No Save ) ),
    dist = Distribution( Continuous Distribution( Column( :height ), Horizontal Layout( 1 ) ) )
);

To work around the problem, use the Schedule() function to schedule the data-table close.

Example - use this code instead of the code above:

Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA\Big Class.jmp" );

cleanup = Function( {},
	Eval( Expr( sch << Close() ) );
	Close( dt, No Save );
);

win = New Window( "Test",
	<<On Close( sch = Schedule( 0, cleanup() ) ),
	dist = Distribution( Continuous Distribution( Column( :height ), Horizontal Layout( 1 ) ) )
);

[Previously JMP Note 63410]