Not tolerant to null object input

[janhoy]

Wrote a small program to fill a table from objects. Strings in the objects can be null, but then asciitable crashes:

Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 73, Size: 73
at java.util.ArrayList.rangeCheck(ArrayList.java:653)
at java.util.ArrayList.get(ArrayList.java:429)
at de.vandermeer.asciithemes.TA_GridHelpers.adjustBorder(TA_GridHelpers.java:194)
at de.vandermeer.asciithemes.TA_Grid.addGrid(TA_Grid.java:306)
at de.vandermeer.asciitable.AT_Renderer.renderAsCollection(AT_Renderer.java:282)
at de.vandermeer.asciitable.AT_Renderer.render(AT_Renderer.java:128)
at de.vandermeer.asciitable.AsciiTable.render(AsciiTable.java:191)

I currently work around this in my code with

at.addRow(Arrays.stream(row).map(v -> v==null?"":v).collect(Collectors.toList()));

[lorenzo93]

I started today working with this library and this was my first error. Not good!

Any way to correct this?

[tholu]

Same problem here, please fix this!

[andy176631]

I think it happened when the value at last column is null, otherwise the cell with null value will merged into its next right cell.

[tholu]

@andy176631 That was indeed the case. The pull request should fix this behaviour.

[PavelTurk]

@vdmeer Can you say if this project is dead? I don't ask you to do something, please, just answer, it won't take much time.

[PavelTurk]

This is not a bug. Null is used as HTML colspan. If you have null in one row, then at least in one row you must have a non null value. Compare:

        //this example works
        AsciiTable table = new AsciiTable();
        table.addRule();
        table.addRow("A", null, "B");
        table.addRule();
        table.addRow(1, 2, 3);
        table.addRule();
        System.out.println(table.render());

        //this example doesn't work
        AsciiTable table = new AsciiTable();
        table.addRule();
        table.addRow("A", null, "B");
        table.addRule();
        table.addRow(1, null, 3); // <--  null
        table.addRule();
        System.out.println(table.render());