Unexpected IllegalArgumentException using an inline template and a custom Writer

[dpeterson-git]

When compiling an inline template and supplying a custom Writer to the Template.apply method, an unexpected IllegalArgumentException can be thrown with the message "The error's column number must be greater than zero".

Handlebars handlebars = new Handlebars();
Template template = handlebars.compileInline("Hello {{user}}.");
template.apply("", null);

This produces the following stack trace:

java.lang.IllegalArgumentException: The error's column number must be greater than zero
	at org.apache.commons.lang3.Validate.isTrue(Validate.java:158)
	at com.github.jknack.handlebars.HandlebarsError.<init>(HandlebarsError.java:79)
	at com.github.jknack.handlebars.internal.BaseTemplate.apply(BaseTemplate.java:135)
	at com.github.jknack.handlebars.internal.ForwardingTemplate.apply(ForwardingTemplate.java:58)
	at HandlebarsTester.main(HandlebarsTester.java:115)

Yes the null Writer is not interesting and would not be used in practice, but it conveniently displays the issue. (One could imagine that the the real custom Writer ran out of space, or could not emit to a file, or was unable to send to a socket, etc.) The point is that this IllegalArgumentException should probably not be thrown when something unexpected happens with the Writer.