Consider the following, incomplete program:

public class Test {
    public void x() {
            new BigDecimal()
    }
}

When I put the cursor before the keyword "new" and hit Shift-Tab, then the statement is un-indented as expected:

public class Test {
    public void x() {
        new BigDecimal()
    }
}

However, when I put the cursor at the end of the line, or anywhere inside of the statement (e.g. Big|Decimal), and then click Shift-Tab, nothing happens.

It would be great if this worked as well. It does so in Eclipse.