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Hibernate Error: org.hibernate.NonUniqueObjectException: a different object with the same identifier
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I have had this error many times and it can be quite hard to track down...
Basically, what hibernate is saying is that you have two objects which have the same identifier (same primary key) but they are not the same object.
I would suggest you break down your code, i.e. comment out bits un...
String literals: Where do they go?
...nto the process space as read-only (which is why you can't change it).
It does vary by platform. For example, simpler chip architectures may not support read-only memory segments so the data segment will be writable.
Rather then try to figure out a trick to make string literals changeable (it wil...
use localStorage across subdomains
... their own separate localStorage objects. I believe www is considered a subdomain (a stupid decision if you ask me). If a user was originally on site.com and decides to type in www . site.com on her next visit, all her personal data will be inaccessible. How do I get all my "subdomains" to share...
How do I get the 'clear' command in Cygwin?
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This package does not appear to be in the current cygwin 64-bit version.
– Andrew Prock
Sep 23 '13 at 16:42
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Difference between java.lang.RuntimeException and java.lang.Exception
...rence between java.lang.RuntimeException and java.lang.Exception ? How do I decide which one to extend if I create my own exception?
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Does Swift have documentation generation support?
Many languages support documentation comments to allow a generator (like javadoc or doxygen ) to generate code documentation by parsing that same code.
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Using group by on multiple columns
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To illustrate using an example, let's say we have the following table, to do with who is attending what subject at a university:
Table: Subject_Selection
+---------+----------+----------+
| Subject | Semester | Attendee |
+---------+----------+----------+
| ITB001 | 1 | John |
| ITB001...
Pointers in Python?
I know Python doesn't have pointers, but is there a way to have this yield 2 instead
9 Answers
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How do I access the host machine itself from the iPhone simulator
...ding on jaminguy's answer, MAC OSX also has a built in Apache server. Just do a quick google search.....
– Sid
May 20 '11 at 23:00
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How do I copy an object in Java?
...y object has also a clone method which can be used to copy the object, but don't use it. It's way too easy to create a class and do improper clone method. If you are going to do that, read at least what Joshua Bloch has to say about it in Effective Java.
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