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How to read environment variables in Scala
In Java, reading environment variables is done with System.getenv() .
6 Answers
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Hibernate Criteria returns children multiple times with FetchType.EAGER
...ase, and each order has 3 line items,
the resultset will be 15 rows. The Java result list of these queries
will have 15 elements, all of type Order. Only 5 Order instances will
be created by Hibernate, but duplicates of the SQL resultset are
preserved as duplicate references to these 5 insta...
Can Selenium interact with an existing browser session?
...703/http://tarunlalwani.com/post/reusing-existing-browser-session-selenium-java/.
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Check if null Boolean is true results in exception
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@JoshM. This is because Java does Boxing and Unboxing of wrappers: docs.oracle.com/javase/tutorial/java/data/autoboxing.html
– Vinicius
Jul 1 '19 at 20:22
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Collections.emptyList() returns a List?
I'm having some trouble navigating Java's rule for inferring generic type parameters. Consider the following class, which has an optional list parameter:
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How to create an array of 20 random bytes?
How can I create an array of 20 random bytes in Java?
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log4j configuration via JVM argument(s)?
... has driven me crazy with log4j a number of times.
– javadba
Nov 8 '13 at 7:43
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Another JVM arg...
What's the point of JAXB 2's ObjectFactory classes?
... cannot work with POJOs, because the schema cannot be mapped exactly on to Java. In these cases, JAXBElement wrapper objects are necessary to provide the additional type information.
There are two concrete examples that I've come across where this is common.
If you want to marshal an object of a ...
Sass or Compass without ruby?
... At this point, you can use the Sass engine in Ruby, Node.js, Python, PHP, Java, .NET and others. For more information, visit libSass. Also, your IDE might have a plugin which would support Sass, without the need of ruby by using the libSass.
The original answer below may or may not apply to your s...
Why use a prime number in hashCode?
...e number of buckets is unlikely to be divisible by it (and in fact, modern java HashMap implementations keep the number of buckets to a power of 2).
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