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How do I clear stuck/stale Resque workers?

...annoying. But this followed by heroku restart seemed to do the trick. It now shows the correct number of workers. – Brian Armstrong Aug 14 '12 at 5:27 ...
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Can't compile project when I'm using Lombok under IntelliJ IDEA

...nally, rename lombok to Project Lombok 1.18.8. Click OK. The project can now import from the lombok package and use Project Lombok annotations (e.g., lombok.Setter and lombok.Getter). share | impr...
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Sample random rows in dataframe

... sample_frac) have been superseded by slice_sample, though they remain for now. – Matt_B Sep 4 at 2:50 add a comment  |  ...
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How can I easily fixup a past commit?

... --interactive --autosquash. So the simplest way to fixup a past commit is now: $ git add ... # Stage a fix $ git commit --fixup=a0b1c2d3 # Perform the commit to fix broken a0b1c2d3 $ git rebase -i --autosquash a0b1c2d3~1 # Now merge fixup commit into broken comm...
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What is null in Java?

...ify: Uninitialized state Termination condition Non-existing object An unknown value How is it represented in the memory? In Java? None of your concern. And it's best kept that way. Is null a good thing? This is now borderline subjective. Some people say that null causes many programme...
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Does ruby have real multithreading?

I know about the "cooperative" threading of ruby using green threads . How can I create real "OS-level" threads in my application in order to make use of multiple cpu cores for processing? ...
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offsetting an html anchor to adjust for fixed header [duplicate]

...on! It seems not to work with IE7. Anyway, I plan to ignore IE7 users from now on... – user334639 Sep 19 '13 at 15:35 ...
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What is the purpose of Android's tag in XML layouts?

...e widget, you would have to use a layout. Let's say that include1.xml has now two TextView: a layout has to be declared. Let's choose a LinearLayout. include1.xml: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/layout2" android:layout_width...
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Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?

...d your credentials in your SO profile. It took me some digging around. But now that I see that you seem to work on the VM team, I'll accept your answer as the official answer. :) – Thierry-Dimitri Roy Mar 11 '11 at 18:03 ...
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Is object empty? [duplicate]

... This answer now works in all modern browsers; definitely the best one unless you need to support IE8-. – Brad Koch Oct 10 '14 at 14:17 ...