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Java serialization: readObject() vs. readResolve()
The book Effective Java and other sources provide a pretty good explanation on how and when to use the readObject() method when working with serializable Java classes. The readResolve() method, on the other hand, remains a bit of a mystery. Basically all documents I found either mention only one o...
Difference between “on-heap” and “off-heap”
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The on-heap store refers to objects that will be present in the Java heap (and also subject to GC). On the other hand, the off-heap store refers to (serialized) objects that are managed by EHCache, but stored outside the heap (and also not subject to GC). As the off-heap store continues t...
Non-static variable cannot be referenced from a static context
... collection.
In order to have an initial entry point for an application, Java has adopted the convention that the Java program must have a class that contains a method with an agreed upon or special name. This special method is called main(). Since the method must exist whether the class containin...
Is there a Newline constant defined in Java like Environment.Newline in C#?
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As of Java 7 (and Android API level 19):
System.lineSeparator()
Documentation: Java Platform SE 7
For older versions of Java, use:
System.getProperty("line.separator");
See https://java.sun.com/docs/books/tutorial/essentia...
How to give Jenkins more heap space when it´s started as a service under Windows?
...estion is : if the builds is running out of memory , why we should set the java options in the master ?
– yarin
Jan 24 '18 at 8:26
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What are the pros and cons of the leading Java HTML parsers? [closed]
Searching SO and Google, I've found that there are a few Java HTML parsers which are consistently recommended by various parties. Unfortunately it's hard to find any information on the strengths and weaknesses of the various libraries. I'm hoping that some people have spent some comparing these libr...
How to do the equivalent of pass by reference for primitives in Java
This Java code:
6 Answers
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What is a daemon thread in Java?
Can anybody tell me what daemon threads are in Java ?
26 Answers
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What makes JNI calls slow?
I know that 'crossing boundaries' when making a JNI call in Java is slow.
3 Answers
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junit & java : testing non-public methods [duplicate]
...red for protected actually, if your class under test is in src/box/of/Cats.java, in your test project put the test class to src/box/of/CatsTest.java and link the projects. That way your test classes seem to be in same package and thus can access each other's protected methods.
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