Null Pointer Exception when calling getResources()
What is a NullPointerException, and how do I fix it?
How to exclude some files from filename expansion mechanism in bash? What point (pt) font size are \Large etc.? In the preamble I have:  \documentclass[a4paper,11pt]{article} \usepackage{fontspec} \setmainfont{Arial}   What can be inferred about the real font pt size for the following?  \tiny, \scriptsize, \footnotesize, \small, \normalsize, \large, \Large, \LARGE, \huge, \Huge Causes of hexagonal shape of Saturn's jet stream NASA has just shown a more detailed picture of the hexagonal vortex/storm on Saturn:           Is that theoretically understood what is the cause behind this eye-catching nontrivial, regular yet not circular, shape? If so, what is the cause? I expect some explanation in terms of "nonlinear equations" of "mathematical physics" and "solitons".  P.S. (added a day after this question and the first answer was posted): On  where I posted the same question, people came up with some articles and phrases like "Rossby waves" and "resonance of latitude-dependence Coriolis frequency". I asked a question a couple of days ago. I didn't receive any answers to the question, save for a few comments.  Once the bounty period was up I placed a bounty on the question as the concern at the time was rather urgent.  I got some answers to question eventually -- as I had expected. But requirements have changed since then and the content of the question has no longer become relevant.  What can or should I do with this question? Should I award the bounty anyway, regardless of whether the question still has it's relevance? How to hide Authoring information,Revision information,Publishing options tabs in create/edit node for any content type I am trying to hide Authoring information, Revision information, Publishing options tabs in create/edit node for any content type. I tried different modules with no luck. Please give me suggestions how to achieve this. Thanks a lot Testing random number generation I have a program which generates random numbers. How can I test if the random number generator is generating actual random numbers? The currently proposed Gravitational wave detection apparatus consists of Michelson Interferometer which is supposed to measure distances of the order of $10^{-22}$m. But the wavelength of the light used is in the order of micrometers ($10^{-6}$m). How is this possible? The conventional way to measure distance is by counting the interference fringes. But for path difference smaller than wavelength of laser light this is not possible. Is Autopilot Openstack 16.04 available? Configuring Firefox to use a proxy from the command line I'm looking for a way to tell Firefox to use a proxy in Ubuntu Ludid (10.04.1 LTS).   I'm installing Ubuntu semi-automatically on several identical machines. For this, I use a script that, amongst other things, sets system-wide proxy settings:  echo "export http_proxy=http://myproxy:3128/" &gt; /etc/profile.d/proxy.sh echo "export HTTP_PROXY=http://myproxy:3128/" &gt;&gt; /etc/profile.d/proxy.sh chmod a+x /etc/profile.d/proxy.sh   I can confirm that the variables are set correctly when checking in a shell. Most programs respect this setting and use my proxy. Firefox, however, does not. When I open its network connection settings dialog, however, it is pre-set to "use system settings" for the proxy.   What does Firefox expect here? A differently-named variable? Can I set something in FF's prefs.js? Old movie about aliens and a family; father briefly abducted About 15 or so years ago, I dimly recall watching a movie on TV about aliens, which really struck a chord, but I can't remember enough to google a name or anything more specific. The action takes place on Earth, perhaps in the USA. It was a live action movie, not animated.    It was about a family; the father (grandfather?) was an army pilot, and when he was flying, he was abducted by aliens (briefly, then returned, I think?). The (grand?)daughter is a little child, and her nanny is trying to teach her telekinetic abilities (perhaps a result of modifications done to the father?). I think I remember her also conjuring up a glowing orb between her hands. The nanny turned out to work for the aliens. There was also something about the government trying to chase/capture the family.   Any help will be appreciated! Best way to implement keyboard shortcuts in a Windows Forms application? What if the hard disk is partitioned into more than 26 sections in Windows? What are Java command line options to set to allow JVM to be remotely debugged? I know there's some JAVA_OPTS to set to remotely debug a Java program.  What are they and what do they mean ? The "Reputation &amp; Moderation" page on any site (/help/site-moderators) still refers to the company behind Stack Exchange as Stack Exchange and not Stack Overflow.     Moderators act as a liaison between the community and Stack Exchange the company.   Seeing as how the name change was recent, I'm not surprised this hasn't been caught yet, and I'm sure there are other instances of this around somewhere. How do you split a list into evenly sized chunks? Blog showing up as mobile, won't exit Stack Exchange blog is showing me the mobile site and won't let me exit on Chrome 21. Could someone take a look? Thanks. Edit I noticed it was with the special query string, that I can't exit it. Stuck on two valid squares in minesweeper How to solve? The 1 indicates that ones of the two questioned flags is a mine and 3 also indicates the same. How to choose logically between any one of them? Can I use a HDD on my PS3 if I have already used another on the same console? I'm thinking of changing the Hard Disk of my PS3 (Slim 120GB), but I am unsure of what will happen to the data on the one I previously had if I do this:   PS3 has some data in the HDD. I turn off PS3, change HDD, install OS on new HDD. I download some data on new HDD from PS Plus.   Let's imagine I forgot to back something up...   I turn PS3 off, change HDD back.   Can I still use the old hard drive without needing to format it again? Handler frame_change_pre doesn't work in render this works in viewport but not in render.  import bpy from math import *  def frame_handler(scene):     z = scene.objects['Lift'].location[2]     scene.objects['Text'].data.body = str(floor(z / 4.0) - 2)  bpy.app.handlers.frame_change_pre.clear() bpy.app.handlers.frame_change_pre.append(frame_handler)   How to get it working in render? I've read  and changed from "bpy.data.objects" to "scene.objects" as already seen in the script. What am I missing? Blender v. 2.81.16  Edit. Tried that depsgraph thing mentioned in comments and changed to frame_change_post:  import bpy from bpy.app.handlers import persistent from math import *  @persistent  # maybe not relevant but doesn't harm anything? def frame_handler(scene, depsgraph):     z = scene.objects['Lift'].evaluated_get(depsgraph).location[2]     scene.objects['Text'].data.body = str(floor(z / 4.0) - 2)  bpy.app.handlers.frame_change_pre.clear() bpy.app.handlers.frame_change_post.clear() bpy.app.handlers.frame_change_post.append(frame_handler)   Now the Text doesn't show up at all in rendered (but works in viewport). When your 10-year old boy says “It’s meta,” what does it mean? In what situation and of what sort of object they use this phrase? I asked about  a few days ago, quoting Maureen Dowd’s review of the movie, “J. Edgar” in New York Times.   I received six answers. But I still don’t get a clear idea of what “It’s meta” means because I don't understand (or have a total inability to comprehend) the concept of “self-referential.”   An answerer : “Meta in this fairly recent, casual context is supposed to mean self-referential, or recursive in some way. This is the sense in which my teenagers would use this term.”  So let me resubmit the question on “meta” in simpler format. When your teenager boy says “It’s (or this is) meta,” what does it mean? In what situation and of what sort of object they use this phrase?  I’m sorry for many users who lent me kind answers to my previous question. But I would like to get it fully on the meaning and usage of “it’s meta,” as a colloquial expression, not the meaning of meta as a prefix.