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How to automatically generate a stacktrace when my program crashes
...to know the gory details, the best source is unfortunately the source: See http://sourceware.org/git/?p=glibc.git;a=blob;f=debug/segfault.c and its parent directory http://sourceware.org/git/?p=glibc.git;a=tree;f=debug
shar...
entity object cannot be referenced by multiple instances of IEntityChangeTracker. while adding relat
...ance of the context - Singleton.
Context Singleton Class:
Reference: http://msdn.microsoft.com/en-us/library/ff650316.aspx
and http://csharpindepth.com/Articles/General/Singleton.aspx
public sealed class MyModelDbContextSingleton
{
private static readonly MyModelDbContext instance = new MyM...
What does -XX:MaxPermSize do?
...ose drawbacks is that it had a fixed size).
FYI: an article on Metaspace: http://java-latte.blogspot.in/2014/03/metaspace-in-java-8.html
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How can jQuery deferred be used?
...
When using a Deferred as a mutex only, watch out for performance impacts (http://jsperf.com/deferred-vs-mutex/2). Though the convenience, as well as additional benefits supplied by a Deferred is well worth it, and in actual (user driven event based) usage the performance impact should not be notice...
Pretty printing XML with javascript
...ent="yes"/> instruction:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:template match="node()|@*">
<xsl:copy>
<xsl:apply-templates select="node()|@*"/>...
TypeScript type signatures for functions with variable argument counts
...
TypeScript uses the ECMAScript 6 spread proposal,
http://wiki.ecmascript.org/doku.php?id=harmony:spread
but adds type annotations so this would look like,
interface Example {
func(...args: any[]): void;
}
...
Programmatically change log level in Log4j2
...
I found a good answer here: https://garygregory.wordpress.com/2016/01/11/changing-log-levels-in-log4j2/
You can use org.apache.logging.log4j.core.config.Configurator to set the level for a specific logger.
Logger logger = LogManager.getLogger(Test.cla...
What is the 
 character?
...perating systems.
You can find a list of such characters at (for example) http://la.remifa.so/unicode/latin1.html
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Unable to verify leaf signature
...CAs.inject()
Will add the missing certificates. See here for more info:
https://git.coolaj86.com/coolaj86/ssl-root-cas.js
Also, See the next answer below
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Returning redirect as response to XHR request
...nd a Location header after a POST request; see restapitutorial.com/lessons/httpmethods.html.
– user1544337
May 25 '15 at 11:35
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