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Why am I not getting a java.util.ConcurrentModificationException in this example?
... you intend to modify the list past declaration
private static final List<Integer> integerList;
Also consider modifying a copy instead of the original list.
List<Integer> copy = new ArrayList<Integer>(integerList);
for(Integer integer : integerList) {
if(integer.equals(rem...
SAML: Why is the certificate within the Signature?
... shouldn't need to include the public key again, but you could also have multiple possible known senders, or even a chain of known senders.
For instance you may have two trusted providers - in either case you check that the message has not been tampered with before checking whether you trust either...
Check a collection size with JSTL
...
<c:if test="${companies.size() > 0}">
</c:if>
This syntax works only in EL 2.2 or newer (Servlet 3.0 / JSP 2.2 or newer). If you're facing a XML parsing error because you're using JSPX or Facelets instead of J...
How to see the changes between two commits without commits in-between?
...ally looking for?
As William suggested, cherry-picking can give you the delta of a single commit rebased on top of another. That is:
$ git checkout 012345
$ git cherry-pick -n abcdef
$ git diff --cached
This takes commit 'abcdef', compares it to its immediate ancestor, then applies that differen...
How to wait for several Futures?
...}
val fut2 = Future{...}
val fut3 = Future{...}
val aggFut = for{
f1Result <- fut1
f2Result <- fut2
f3Result <- fut3
} yield (f1Result, f2Result, f3Result)
In this example, futures 1, 2 and 3 are kicked off in parallel. Then, in the for comprehension, we wait until the results 1 a...
In STL maps, is it better to use map::insert than []?
...rt() will only create:
using std::cout; using std::endl;
typedef std::map<int, std::string> MyMap;
MyMap map;
// ...
std::pair<MyMap::iterator, bool> res = map.insert(MyMap::value_type(key,value));
if ( ! res.second ) {
cout << "key " << key << " already exists "
...
Shards and replicas in Elasticsearch
... I didn't manage to understand it. If I download Elasticsearch and run the script, then from what I know I have started a cluster with a single node. Now this node (my PC) have 5 shards (?) and some replicas (?).
...
ASP.Net: Literal vs Label
...iteral controls just render out text, but Label controls surround it with <span> tags (Unless you use the AssociatedControlID property, in which case a Label control will render a <label> tag).
So, labels can be styled easier, but if you're just inserting text, literals are the way to g...
jQuery parent of a parent
...rent of a parent of an element. I have a link being clicked that is in a <td> , and I'd like to get the <tr> object.
...
How do you remove all the options of a select box and then add one option and select it with jQuery?
...
$('#mySelect')
.find('option')
.remove()
.end()
.append('<option value="whatever">text</option>')
.val('whatever')
;
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