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How to get active user's UserDetails
...of Spring-Security,
need to load your custom User Object from the Database by some information (like the login or id) stored in the principal or
want to learn how a HandlerMethodArgumentResolver or WebArgumentResolver can solve this in an elegant way, or just want to an learn the background behind @...
Filter output in logcat by tagname
I'm trying to filter logcat output from a real device (not an emulator) by tag name but I get all the messages which is quite a spam. I just want to read messages from browser which should be something like "browser: " or "webkit: " , but it doesn't work...
Here it is what I get:
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How do I control how Emacs makes backup files?
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If you've ever been saved by an Emacs backup file, you
probably want more of them, not less of them. It is annoying
that they go in the same directory as the file you're editing,
but that is easy to change. You can make all backup files go
into a di...
Android: Rotate image in imageview by an angle
I am using the following code to rotate a image in ImageView by an angle. Is there any simpler and less complex method available.
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Find commit by hash SHA in Git
I need to find a commit in Git by a given hash, SHA. For example, if I have the "a2c25061" hash, and I need to get the author and the committer of this commit.
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What is a word boundary in regex?
...d boundary"). I had assumed that -12 would be an "integer word" (matched by \b\-?\d+\b ) but it appears that this does not work. I'd be grateful to know of ways of matching space-separated numbers.
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What data is stored in Ephemeral Storage of Amazon EC2 instance?
...ill contain everything as it is now.
Update: to clarify based on comments by mattgmg1990 and glenn bech:
Note that there is a difference between "stop" and "terminate". If you "stop" an instance that is backed by EBS then the information on the root volume will still be in the same state when you...
git: Your branch is ahead by X commits
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Bravo. That was really the issue. I started by creating a repository on google code. Then I cloned this repository on my laptop and I do work there and push the changes, laptop => code.google. I used to get this message on my server where I had created a clone of co...
A regex to match a substring that isn't followed by a certain other substring
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To match a foo following by something that doesn't start with bar, try
foo(?!bar)
Your version with negative lookbehind is effectively "match a foo followed by something that doesn't end in bar". The .* matches all of barblah, and the (?<!bar) ...
When should we use intern method of String on String literals
...is only (explicitly) done with Strings that are "generated" somehow, be it by internal manipulation or by retrieving from a database or such. With constants we don't have a choice.
– Carl Smotricz
Dec 6 '09 at 12:24
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