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How to create a memory leak in Java?
...a thread pool to leak even faster).
The thread loads a class via an (optionally custom) ClassLoader.
The class allocates a large chunk of memory (e.g. new byte[1000000]), stores a strong reference to it in a static field, and then stores a reference to itself in a ThreadLocal. Allocating the extra ...
“tag already exists in the remote" error after recreating the git tag
...ag—could retain its old tag. So while this tells you how to do it, be really sure you want to do it. You'll need to get everyone who already has the "wrong" tag to delete their "wrong tag" and replace it with the new "right tag".
Testing in Git 2.10/2.11 shows that retaining the old tag is the ...
log4j vs logback [closed]
...ments the SLF4J API. This means that if you are using logback, you are actually using the SLF4J API. You could theoretically use the internals of the logback API directly for logging, but that is highly discouraged. All logback documentation and examples on loggers are written in terms of the SLF4J ...
How to remove a field completely from a MongoDB document?
Suppose this is a document. How do I remove " words " completely from all the documents in this collection? I want all documents to be without " words ":
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SQLite Concurrent Access
...emely fast and has many clever optimizations to minimize contention. Especially SQLite 3.
For most desktop/laptop/tablet/phone applications, SQLite is fast enough as there's not enough concurrency. (Firefox uses SQLite extensively for bookmarks, history, etc.)
For server applications, somebody som...
How can I clear scrollback buffer in Tmux?
... line. With these two keys I get a nice ctrl-l, ctrl-k combo, which moves all the scroll buffer off the screen (the "clear") and then deletes all that history (the tmux "clear-history" command).
It's not quite as nice as Terminal's, iTerm's, or Konsole's 1-key combos for clearing it out, but it's ...
What's the difference between an inverted index and a plain old index?
In software engineering we create indexes all the time (e.g., in databases) but I also hear a lot of people talk about inverted indices. Is there something fundamentally different between the two? They sound like the same thing.
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LINQPad [extension] methods [closed]
...ed queries / samples (for an example, execute a search using Edit | Search All)
Highlight - wraps an object so that it will highlight in yellow when Dumped
HorizontalRun - lets you Dump a series of objects on the same line
LINQPad also provides the HyperLinq class. This has two purposes: the first...
CleanWPPAllFilesInSingleFolder error makes my project no longer load
Using VS2012 I created a dynamic data project. It all worked and then I started configuring the web deployment settings. I am not sure what setting I changed exactly as there was no error. However when I try and load the solution I get the following error for the project and it will no longer load.
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When do I really need to use atomic instead of bool? [duplicate]
...use bool is atomic by nature? I don't think it's possible to have a partially modified bool value. When do I really need to use atomic<bool> instead of bool ?
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