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When is the @JsonProperty property used and what is it used for?
...
As you know, this is all about serialize and desalinize an object. Suppose there is an object:
public class Parameter {
public String _name;
public String _value;
}
The serialization of this object is:
{
"_name": "...",
"_value": ".....
Why does setTimeout() “break” for large millisecond delay values?
...s due to setTimeout using a 32 bit int to store the delay so the max value allowed would be
2147483647
if you try
2147483648
you get your problem occurring.
I can only presume this is causing some form of internal exception in the JS Engine and causing the function to fire immediately rathe...
Showing the stack trace from a running Python application
... prompt for
interactive debugging."""
d={'_frame':frame} # Allow access to frame object.
d.update(frame.f_globals) # Unless shadowed by global
d.update(frame.f_locals)
i = code.InteractiveConsole(d)
message = "Signal received : entering python shell.\nTraceback:\n"...
Using Pairs or 2-tuples in Java [duplicate]
...to design this class further regarding equality, immutability, etc., especially if you plan to use instances as keys for hashing.
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Rails create or update magic?
...not, a block will be passed down with the record object as an argument, in order to do the update.
– sameers
Sep 23 '14 at 20:48
3
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Maven2: Missing artifact but jars are in place
... settings in the global or user settings.
Check you're using the Maven installation you expect. By default m2eclipse uses the embedder, if you have a separate installation you may want to configure m2eclipse to use the external installation so that CLI and Eclipse builds are consistent. This also en...
How can I force gradle to redownload dependencies?
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For Windows...in order to make gradle re-download specific dependencies:
delete the dependencies you want to re-download from the directory below:
C:\Users\%USERNAME%\.gradle\caches\modules-2\files-2.1
delete all metadata directories at t...
How to use an existing database with an Android application [duplicate]
...he database in the assets folder, so for example, if your database name is ordersDB, then the value of DB_NAME will be ordersDB,
private static String DB_NAME ="ordersDB";
Keep the database in assets folder and then follow the below:
DataHelper class:
import java.io.File;
import java.io.FileO...
How do I create a MongoDB dump of my database?
...ump:
$ ./mongodump --host prod.example.com
connected to: prod.example.com
all dbs
DATABASE: log to dump/log
log.errors to dump/log/errors.bson
713 objects
log.analytics to dump/log/analytics.bson
234810 objects
DATABASE: blog to dump/blog
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Unable to generate an explicit migration in entity framework
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This helped me because I caused the problem by renaming the solution. In the process I had renamed the ContextKey so it no longer matched the _MigrationHistory entries.
– Joel
Jan 12 '16 at 17:23
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