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Is there a Java reflection utility to do a deep comparison of two objects?
I'm trying to write unit tests for a variety of clone() operations inside a large project and I'm wondering if there is an existing class somewhere that is capable of taking two objects of the same type, doing a deep comparison, and saying if they're identical or not?
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How to get active user's UserDetails
...ecurity,
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 @Authenticat...
.keyCode vs. .which
...n 2010. Here many years later, both keyCode and which are deprecated in favor of key (for the logical key) and code (for the physical placement of the key). But note that IE doesn't support code, and its support for key is based on an older version of the spec so isn't quite correct. As I write this...
Margin-Top not working for span element?
Can someone tell me what I coded wrong? Everything is working, the only thing is that there is no margin at the top.
5 Answ...
Android ADB device offline, can't issue commands
I can't connect to my device anymore using ADB through the command line or in Eclipse .
58 Answers
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Is iterating ConcurrentHashMap values thread safe?
In javadoc for ConcurrentHashMap is the following:
5 Answers
5
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Iterate through a HashMap [duplicate]
...h the entrySet() like so:
public static void printMap(Map mp) {
Iterator it = mp.entrySet().iterator();
while (it.hasNext()) {
Map.Entry pair = (Map.Entry)it.next();
System.out.println(pair.getKey() + " = " + pair.getValue());
it.remove(); // avoids a ConcurrentModif...
Is there a standard naming convention for git tags? [closed]
I've seen a lot of projects using v1.2.3 as the naming convention for tags in git. I've also seen some use 1.2.3 . Is there an officially endorsed style, or are there any good arguments for using either?
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Task vs Thread differences [duplicate]
...a separate thread, rather than executing on the thread pool etc.
Task is more than just an abstraction of "where to run some code" though - it's really just "the promise of a result in the future". So as some different examples:
Task.Delay doesn't need any actual CPU time; it's just like setting ...
Is it possible to implement dynamic getters/setters in JavaScript?
I am aware of how to create getters and setters for properties whose names one already knows, by doing something like this:
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