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Difference between setUp() and setUpBeforeClass()
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From the Javadoc:
Sometimes several tests need to share computationally expensive setup (like logging into a database). While this can compromise the independence of tests, sometimes it is a necessary optimization. Annotating a pu...
How to run Maven from another directory (without cd to project dir)?
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java.lang.IllegalArgumentException: Parameter 'directory' is not a directory
– Damir Olejar
May 7 '17 at 15:22
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Semaphore vs. Monitors - what's the difference?
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@xbonez: If we look at java.util.ArrayList: is it an object or container of multiple objects? Well, it is both at the same time. So is semaphore appropriate to control access to it? I would say: no.
– dma_k
Ma...
Algorithm for Determining Tic Tac Toe Game Over
I've written a game of tic-tac-toe in Java, and my current method of determining the end of the game accounts for the following possible scenarios for the game being over:
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Comparison of Lucene Analyzers
... like that). For more information on specific analyzers/tokenizers see its Java Docs.
Stemmers are used to get the base of a word in question. It heavily depends on the language used. For example, for previous phrase in English there will be something like ["i", "be", "veri", "happi"] produced, an...
How to avoid mysql 'Deadlock found when trying to get lock; try restarting transaction'
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For Java programmers using Spring, I've avoided this problem using an AOP aspect that automatically retries transactions that run into transient deadlocks.
See @RetryTransaction Javadoc for more info.
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How to install both Python 2.x and Python 3.x in Windows
...les\Python_3.6\Scripts\;C:\Program Files\Python_3.6\;C:\ProgramData\Oracle\Java\javapath;C:\Program Files (x86)\Common Files\Intel\Shared
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Note that Python 2.7 is first and Python 3.5 second.
So running python command will launch python 2.7 (if Python 3.5 the same command would launch Pytho...
What's the point of Spring MVC's DelegatingFilterProxy?
...n context and invokes it. How is it possible? Because this bean implements javax.servlet.Filter, its doFilter method is called.
Which bean is called? the DelegatingFilterProxy "Supports a "targetBeanName" [...], specifying the name of the target bean in the Spring application context."
As you saw ...
@Transactional(propagation=Propagation.REQUIRED)
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Properties order in Margin
...ion for the past 5 years with over 100 screens. Part of a team of 5 WPF/C#/Java devs. We eventually settled on either using 1 number (for border thickness) or 4 numbers. We never use 2. It is consistent, and seems to be a good way to reduce cognitive load when developing.
The rule:
All width numbe...