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Can not deserialize instance of java.util.ArrayList out of START_OBJECT token
...
The problem is the JSON - this cannot, by default, be deserialized into a Collection because it's not actually a JSON Array - that would look like this:
[
{
"name": "Test order1",
"detail": "ahk ks"
},
{
"name": "Test order2",
...
Maximum concurrent Socket.IO connections
...ifferent to monitor users browser and so on.. Python i found very handy to script a simulator...
– Angry 84
Nov 27 '15 at 7:31
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show 1 more...
How to add an Access-Control-Allow-Origin header
... In the font files folder put an htaccess file with the following in it.
<FilesMatch "\.(ttf|otf|eot|woff|woff2)$">
<IfModule mod_headers.c>
Header set Access-Control-Allow-Origin "*"
</IfModule>
</FilesMatch>
also in your remote CSS file, the font-face declaration...
Applicatives compose, monads don't
...
If we compare the types
(<*>) :: Applicative a => a (s -> t) -> a s -> a t
(>>=) :: Monad m => m s -> (s -> m t) -> m t
we get a clue to what separates the two concepts. That (s -> m t) in the type of (&g...
WPF OpenFileDialog with the MVVM pattern? [duplicate]
...blem.
public interface IOService
{
string OpenFileDialog(string defaultPath);
//Other similar untestable IO operations
Stream OpenFile(string path);
}
In your application, you would provide a default implementation of this service. Here is how you would consume it.
public MyView...
The 'Access-Control-Allow-Origin' header contains multiple values
... added
config.EnableCors(new EnableCorsAttribute(Properties.Settings.Default.Cors, "", ""))
as well as
app.UseCors(CorsOptions.AllowAll);
on the server. This results in two header entries. Just use the latter one and it works.
...
Align two inline-blocks left and right on same line
...ce I answered this question and I guess a more modern solution is needed, although the current one does the thing :)
1.Flexbox
It's by far the shortest and most flexible. Apply display: flex; to the parent container and adjust the placement of its children by justify-content: space-between; like t...
How do I set environment variables from Java?
...ctor out a method
void setUpEnvironment(ProcessBuilder builder) {
Map<String, String> env = builder.environment();
// blah blah
}
and pass any ProcessBuilders through it before starting them.
Also, you probably already know this, but you can start more than one process with the sam...
Best way to create an empty map in Java
... be immutable:
Collections.emptyMap()
// or, in some cases:
Collections.<String, String>emptyMap()
You'll have to use the latter sometimes when the compiler cannot automatically figure out what kind of Map is needed (this is called type inference). For example, consider a method declared l...
How to automatically generate a stacktrace when my program crashes
...h to print a stacktrace and exit gracefully when you get a segmentation fault. Documentation can be found in the libc manual.
Here's an example program that installs a SIGSEGV handler and prints a stacktrace to stderr when it segfaults. The baz() function here causes the segfault that triggers th...