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Check for null in foreach loop

..., consider changing the getter of Headers instead. null is the value of unknown so if possible instead of using null as "I know there are no elements" when null actually(/originally) should be interpreted as "I don't know if there are any elements" use an empty set to show that you know there are no...
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Where is the list of predefined Maven properties

I know there is a list of all predefined Maven properties (you know like project.build.sourceEncoding , or project.build.sourceDirectory ). I once saw the list but I just can't find it again. ...
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How to assign name for a screen? [closed]

... Much appreciated. Even though I know you can start with a name, I often start without naming, then wish I could later. Thanks! – Ketzak Jul 31 '17 at 18:40 ...
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How can I pad a value with leading zeros?

... Now you just need to take care of numbers like 50.1234 and you've got a readable version of my solution below! I did, however, assume that we were just left padding, not overall padding. – coderjoe ...
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Styling input buttons for iPad and iPhone

... The link above is now dead, unfortunately (thinkvitamin.com/design/…). – Per Quested Aronsson Sep 5 '12 at 11:00 ...
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Java Garbage Collection Log messages

...he original example. While there are two issues in his answer (his link is now dead and rafa.ferreria has pointed out the other), it doesn't just regurgitate an Oracle doc. – Dirk Apr 23 '14 at 17:04 ...
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Difference between a User and a Login in SQL Server

... But now MSDN recommends a type of user "Users that authenticate at the database" (Recommended to help make your database more portable). Link: docs.microsoft.com/en-us/sql/t-sql/statements/… Is this better than traditional use...
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What is the preferred Bash shebang?

..., I just added it to an alias: alias shebang='echo "#!/usr/bin/env bash"', now I just have to open the terminal and type shebang instead of going here. – Oylex Mar 1 '17 at 16:35 1...
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the source file is different from when the module was built

... and close/exit it. You may have more than one. Can you debug your changes now? Are you running the debug version but have only built the release version (or vice versa)? Did the compile actually succeed? I know I've clicked through the "there were errors, do you want to continue anyway?" message ...
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Resetting remote to a certain commit

...al and pulled from origin again so I am able to do git revert ... My doubt now is: do I have to revert each commit and push (one by one) or just revert the first commit after the right commit only? – nacho4d Apr 28 '11 at 10:38 ...