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What is resource-ref in web.xml used for?
...figuration file.
So here's what happens: let's say you want to lookup the java:comp/env/jdbc/primaryDB name. The container finds that web.xml has a <resource-ref> element for jdbc/primaryDB, so it will look into the container-specific configuration, that contains something similar to the foll...
Populating Spring @Value during Unit Test
...eflectionTestUtils - it has a method setField to set private fields.
@see JavaDoc: ReflectionTestUtils.setField(java.lang.Object, java.lang.String, java.lang.Object)
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How to remove elements from a generic list while iterating over it?
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For those coming from Java, C#'s List is like ArrayList in that insertion/removal is O(n) and retrieval via an index is O(1). This is not a traditional linked list. It seems a bit unfortunate C# uses the word "List" to describe this data structure...
How to move Jenkins from one PC to another
... there are pointing to old jenkins as below: Run from slave command line: javaws old-jenkins-server:8080/computer/slaveMachine1/slave-agent.jnlp Or if the slave is headless: java -jar slave.jar -jnlpUrl old-jenkins-server:8080/computer/slaveMachine1/slave-agent.jnlp Now How should I make these UR...
Android equivalent to NSNotificationCenter
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You could try this: http://developer.android.com/reference/java/util/Observer.html
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HttpServletRequest - how to obtain the referring URL?
I need to log URLs that are linking to my site in a Java Servlet.
4 Answers
4
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Remove file from SVN repository without deleting local copy
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When you want to remove one xxx.java file from SVN:
Go to workspace path where the file is located.
Delete that file from the folder (xxx.java)
Right click and commit, then a window will open.
Select the file you deleted (xxx.java) from the folder, and a...
How to format a number 0..9 to display with 2 digits (it's NOT a date)
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You can use:
String.format("%02d", myNumber)
See also the javadocs
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What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?
...ee HTTP above).
The client receives the requested webpage and executes the JavaScript on the page which requests a file from the server at regular intervals (e.g. 0.5 seconds).
The server calculates each response and sends it back, just like normal HTTP traffic.
Ajax Long-Polling:
A client req...
Handle spring security authentication exceptions with @ExceptionHandler
... private static final boolean jaxb2Present =
ClassUtils.isPresent("javax.xml.bind.Binder", MessageProcessor.class.getClassLoader());
private static final boolean jackson2Present =
ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", MessageProcessor.class.getClass...