[Rails-devel] [newbie] null pointer in PublicCompany?

[Michał B. <ba...@tl...>]

Hi,
   I have recently played a game of 18AL, found 4 or 5 bugs, and decided 
to try to see if I can fix some of them... I downloaded sources from 
cvs, and kept on getting a NullPointer right after clicking 'New Game'. 
I tracked that down to some code in PublicCompany.java that is a cut and 
paste code from CompanyManager.java:

		// BaseToken
		Tag baseTokenTag = tag.getChild("BaseTokens");
		// Cost of laying a token
		Tag layCostTag = baseTokenTag.getChild("LayCost");
		String costMethod = layCostTag.getAttributeAsString("method");
		// Must validate the cost method!

		baseTokenLayCost = layCostTag.getAttributeAsIntegerArray("cost");

		/* Cost of buying a token (mutually exclusive with laying cost) */
		Tag buyCostTag = tag.getChild("BuyCost");
		// We don't have this yet - ignore for now.


         Tag tokenLayTimeTag = tag.getChild("HomeBase");
         if (tokenLayTimeTag != null) {
             String layTimeString = 
tokenLayTimeTag.getAttributeAsString("lay");
             if (Util.hasValue(layTimeString)) {
                 for (int i = 0; i < tokenLayTimeNames.length; i++) {
                     if 
(tokenLayTimeNames[i].equalsIgnoreCase(layTimeString)) {
                         homeBaseTokensLayTime = i;
                         break;
                     }
                 }
             }
         }


(lines 463 to 488 in PublicCompany.java).

Commenting this code out results in everything seemingly working fine...




So my question: what am I doing wrong? Did I checkout code I wasn't 
supposed to, and I should check out a branch of a stable version (how?)? 
Or is the code fine as it is and my NullPointer is me doing something 
wrong along the way?  I am a bit reluctant to try fixing anything while 
not understatnding what's the deal with this NullPointer...

Best regards,
   Mike Bazynski