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Collection was modified; enumeration operation may not execute
...ToList() copies the values of subscribers.Values to a separate list at the start of the foreach. Nothing else has access to this list (it doesn't even have a variable name!), so nothing can modify it inside the loop.
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How to specify JVM maximum heap size “-Xmx” for running an application with “run” action in SBT?
...g JAVA_OPTS globally, and it will put custom JAVA_OPTS in an sbt generated start-script
For non forked processes it's most convenient to set the config via sbtopts or sbtconfig depending on your sbt version.
Since sbt 0.13.6 .sbtconfig is deprecated. Modify /usr/local/etc/sbtopts along these lines...
Howto: Clean a mysql InnoDB storage engine?
...you can remove all folders in /var/lib/mysql, except /var/lib/mysql/mysql.
Start MySQL (This will recreate ibdata1 [10MB by default] and ib_logfile0 and ib_logfile1 at 1G each).
Import SQLData.sql
Now, ibdata1 will still grow but only contain table metadata because each InnoDB table will exist out...
How to replace multiple white spaces with one white space
... all whitespace be converted to spaces? What should happen to space at the start and end?
For the benchmark below, I've assumed that you only care about spaces, and you don't want to do anything to single spaces, even at the start and end.
Note that correctness is almost always more important than...
How do I put a bunch of uncommitted changes aside while working on something else
...o simply commit your changes, than you go back to the changeset before you start these changes and work from there. There are some minor issues, let me illustrate:
Let's say you have the changeset A. Than you start your changes. At this point you want set it aside for a while. First of all, commit ...
Describe the architecture you use for Java web applications? [closed]
...g
DAO's : Ibatis
Database : Oracle
We use Sping transaction support, and start transactions upon entering the service layer, propagating down to the DAO call's. The Service layer has the most bussines model knowledge, and the DAO's do relatively simple CRUD work.
Some more complicated query stuff...
Adding images or videos to iPhone Simulator
...to the simulator. This will cause the Simulator to open the Photos app and start populating the library.
If you want a scriptable method, read on.
Note - while this is valid, and works, I think Koen's solution below is now a better one, since it does not require rebooting the simulator.
Identif...
How do you disable the unused variable warnings coming out of gcc in 3rd party code I do not wish to
... you care about these things in your project. It becomes annoying when GCC starts to warn you about things not in your code though.
I would recommend you keeping the warning on, but use -isystem instead of -I for include directories of third-party projects. That flag tells GCC not to warn you about...
Traversing text in Insert mode
...our cursor 15 characters back and 4j will move your cursor 4 lines down. Start using them and you'll get used to it soon. If you made a mistake ten characters back from your cursor, you'll find out that pressing the ← key 10 times is much slower than the iterative approach to moving the cursor. ...
How can I lookup a Java enum from its String value?
...num.
Verbosity.valueOf("BRIEF") == Verbosity.BRIEF
For arbitrary values start with:
public static Verbosity findByAbbr(String abbr){
for(Verbosity v : values()){
if( v.abbr().equals(abbr)){
return v;
}
}
return null;
}
Only move on later to Map implement...