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Java synchronized method lock on object, or method?
... anyway. That's a bit misleading. Synchronizing on the method is functionally equivalent to having a synchronized (this) block around the body of the method. The object "this" doesn't become locked, rather the object "this" is used as the mutex and the body is prevented from executing concurrentl...
Start/Stop and Restart Jenkins service on Windows
...zip" from http://jenkins-ci.org/content/thank-you-downloading-windows-installer .
8 Answers
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How to use background thread in swift?
...syntax without some modifications. Passing QOS_CLASS_BACKGROUND didn't actually work, instead use Int(QOS_CLASS_BACKGROUND.value).
For more information see Apples documentation
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Remove Trailing Slash From String PHP
...Another (probably better) option would be using rtrim() - this one removes all trailing slashes:
$string = rtrim($string, '/');
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Hadoop “Unable to load native-hadoop library for your platform” warning
...e native Hadoop library $HADOOP_HOME/lib/native/libhadoop.so.1.0.0 was actually compiled on 32 bit.
Anyway, it's just a warning, and won't impact Hadoop's functionalities.
Here is the way if you do want to eliminate this warning, download the source code of Hadoop and recompile libhadoop.so.1.0....
How to permanently add a private key with ssh-add on Ubuntu? [closed]
...e chmod 600. You can use the command chmod 600 ~/.ssh/config.
If you want all users on the computer to use the key put these lines into /etc/ssh/ssh_config and the key in a folder accessible to all.
Additionally if you want to set the key specific to one host, you can do the following in your ~/.s...
Catch an exception thrown by an async void method
...ET,
is it possible to catch an exception thrown by an async method in the calling method?
6 Answers
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SQL JOIN - WHERE clause vs. ON clause
...der and its lines, if any, for order number 12345. The second will return all orders, but only order 12345 will have any lines associated with it.
With an INNER JOIN, the clauses are effectively equivalent. However, just because they are functionally the same, in that they produce the same results...
How can I convert a string to boolean in JavaScript?
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What about "TRUE" in all uppercase, for example?
– BMiner
Aug 10 '11 at 22:45
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Are there any disadvantages to always using nvarchar(MAX)?
In SQL Server 2005, are there any disadvantages to making all character fields nvarchar(MAX) rather than specifying a length explicitly, e.g. nvarchar(255)? (Apart from the obvious one that you aren't able to limit the field length at the database level)
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