Java Tip : use String constants before calling getters to avoid NPE during string comparision

Whenever we need to compare string, Use constants first before getter to avoid occasional null pointer exception 

// Wrong
graAttrDefinition.getName().equals(CmBluePrintUtil.ATTRIBUTE_MEMORY);

as graAttrDefinition.getName() could be null 

// Correct
CmBluePrintUtil.ATTRIBUTE_MEMORY.equals(graAttrDefinition.getName());

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s