... Unmodifiable collections are usually read-only views (wrappers) of other collections. You can't add, remove or clear them, but the underlying collection can change. Immutable collections can't be changed at all - they don't wrap another collection - they h...

...it handles the executable bit correctly and this variable is automatically set as necessary. A repository, however, may be on a filesystem that handles the filemode correctly, and this variable is set to true when created, but later may be made accessible from another envir...

... I absolutely see your point with the cookies, you're totally right. But to switch to a SSL IP to save the few ms of DNS lookup sounds more hassle to me than it's worth. Plus, you may have issues taking your IP with you if you ever have to change your provider - it's probably not p...

...nd your time on what's important. Constructors: create a constructor with all required fields of the entity? Constructor(s) for application logic, should have only a few critical "foreign key" or "type/kind" fields which will always be known when creating the entity. The rest should be set by call...

... long as there are transactions pending. Rollback immediate will terminate all of these. – libjup Apr 27 '14 at 13:33 add a comment  |  ...

...n rewrite them. Some of these tools come with applications or "hooks" that allow them to be extended. For example, PMD comes with the "designer" tool that allows you to create new rules. Also, Checkstyle has the DescendantToken check that has properties that allow for substantial customization. I i...

... Solution 1: For some reason, virtualenvwrapper.sh installed in /usr/bin/virtualenvwrapper.sh, instead of under /usr/local/bin. The following in my .bash_profile works... source "/usr/bin/virtualenvwrapper.sh" export WORKON_HOME="/opt/virtual_env/" My install seems to work fi...

...mmand for the shell you're using) and build your project. This will output all of the environment variables that are available to you. You can use this in conjunction with the documentation to make sure you're getting the data that you expected. – Ryan H. Mar 9...

...r/mysql # Stop MySQL before copying over files service mysql stop # Copy all files in default directory, to new one, retaining perms (-p) cp -rp /var/lib/mysql/* /new/dir/for/mysql/ Edit the /etc/my.cnf file, and under [mysqld] add this line: datadir=/new/dir/for/mysql/ If you are using CageF...

... 2 2 # [3,] 0.3297416 1 3 From ?setcolorder: In data.table parlance, all set* functions change their input by reference. That is, no copy is made at all, other than temporary working memory, which is as large as one column. so should be pretty efficient. See ?setcolorder for details. ...