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What's the difference between ConcurrentHashMap and Collections.synchronizedMap(Map)?
... @AbdullahShaikh The issue raised in that article has been fixed in Java 7 and further improvements have been made in Java 8.
– pulse0ne
Dec 10 '15 at 20:07
5
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How to test my servlet using JUnit
I have created a web system using Java Servlets and now want to make JUnit testing. My dataManager is just a basic piece of code that submits it to the database. How would you test a Servlet with JUnit?
...
Best practice for storing and protecting private API keys in applications [closed]
...e does it not make a difference if the private key string is stored in the Java class vs in the String resource XML?
– Alan
Apr 15 '16 at 16:16
2
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How to exclude a file extension from IntelliJ IDEA search?
...ij 16 there is a section "File name Filter" to exclude an extension use !*.java. You can give more detailed patterns as well for example I use the pattern below to only return .java files except those with a name starting or ending with test.
Pattern: !*test.java,*.java,!Test*.java
In recent vers...
Jaxb, Class has two properties of the same name
...perties of the same name "timeSeries"
At Getter Method :
at public java.util.List testjaxp.ModeleREP.getTimeSeries()
At Member Field :
at protected java.util.List testjaxp.ModeleREP.timeSeries
Solution :
Instead of using @XmlElement in the field, use it in the getter method.
...
How to sort a HashSet?
...
Java 8 way to sort it would be:
fooHashSet.stream()
.sorted(Comparator.comparing(Foo::getSize)) //comparator - how you want to sort it
.collect(Collectors.toList()); //collector - what you want to collect it to
*Foo::g...
Should one call .close() on HttpServletResponse.getOutputStream()/.getWriter()?
In Java Servlets, one can access the response body via response.getOutputStream() or response.getWriter() . Should one call .close() on this OutputStream after it has been written to?
...
How to stop an unstoppable zombie job on Jenkins without restarting the server?
... hudson.model.Result.ABORTED,
new java.io.IOException("Aborting build")
);
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Must qualify the allocation with an enclosing instance of type GeoLocation
...
Do this Structure:
FILE GeoLocation.java
public class GeoLocation {
public static void main(String[] args) throws InterruptedException {
int size = 10;
// create thread pool with given size
ExecutorService service = Executors.newF...
Why are all fields in an interface implicitly static and final?
... the instance state is not inferred by the interface.
BTW : A constant in Java is defined by a static final field (and by convention the name uses UPPER_CASE_AND_UNDERSCORES).
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