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Why would finding a type's initializer throw a NullReferenceException?
...d-SP RetAddr Call Site
00000000`001fec70 000007fe`8d450110 mscorlib_ni!System.RuntimeType.GetConstructorImpl(System.Reflection.BindingFlags, System.Reflection.Binder, System.Reflection.CallingConventions, System.Type[], System.Reflection.ParameterModifier[])+0xa3
00000000`001fecd0...
Logging in Scala
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answered Jun 10 '09 at 21:32
Eugene YokotaEugene Yokota
88.3k4242 gold badges201201 silver badges296296 bronze badges
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Should I index a bit field in SQL Server?
...e working set (number of rows) it has to iterate over.
When you index a bit field (or some narrow range), you only reduce the working set by the number of rows matching that value. If you have a small number of rows matching it would reduce your working set a lot. For a large number of rows wit...
Difference between volatile and synchronized in Java
...on some (older) hardware this might require locks, though not on modern 64 bit hardware. Under the new (JSR-133) memory model for Java 5+, the semantics of volatile have been strengthened to be almost as strong as synchronized with respect to memory visibility and instruction ordering (see http://ww...
What does -XX:MaxPermSize do?
...nly used to print a warning message like this one:
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option
MaxPermSize=512m; support was removed in 8.0
The reason why you get this message in Java 8 is because Permgen has been replaced by Metaspace to address some of PermGen's drawbacks (a...
How does OpenID authentication work?
...oo low-level.
http://wiki.openid.net/w/page/12995171/Introduction
It's a bit verbose, and more or less written as prose, but it's a fun read and very informative about what happens behind the scenes.
(Answer pasted from my answer at OpenID login workflow?.)
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What is a “Bitmap heap scan” in a query plan?
I want to know the principle of "Bitmap heap scan", I know this often happens
when I execute a query with OR in the condition.
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Is there still any reason to learn AWK?
...e.in
This prints the third whitespace-delimited field in file.in. It's a bit easier than:
tr -s ' ' < file.in | cut -d' ' -f3
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Parsing query strings on Android
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edited Jun 9 at 10:55
answered Dec 2 '15 at 10:22
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How to debug a bash script? [closed]
... Just discovered ddd thanks to your answer. In Ubuntu 12.04.3 (64bit), the apt-sources version doesn't work. I had to compile & install from source to start debugging my bash script. The instructions here - askubuntu.com/questions/156906/… helped.
– chronodekar
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