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PersistentObjectException: detached entity passed to persist thrown by JPA and Hibernate
...s (even in good ones) and through the net, which do exactly that. I don't know, why... Perhaps sometimes simply copied over and over without much thinking...
Guess what happens if you call remove(transaction) still having "cascade ALL" in that @ManyToOne? The account (btw, with all other transacti...
Why generate long serialVersionUID instead of a simple 1L?
...glected to use a serialVersionUID before, and then made a change that you know should be compatible but which causes serialization to break.
See the Java Serialization Spec for more details.
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Unable to execute dex: Multiple dex files define
I know this question has been asked here a few times before. But i haven't seen any possible solution yet.
Before i make the project 'Run as Android Application' , if i do not clean it, i receive the following error and have to restart Eclipse ... and clean again.
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How can I explicitly free memory in Python?
... In general, gc.collect() is to be avoided. The garbage collector knows how to do its job. That said, if the OP is in a situation where he is suddenly deallocating a lot of objects (like in the millions), gc.collect may prove useful.
– Jason Baker
Aug ...
Remove URL parameters without refreshing page
...ll/be/deleted/
To become:
https://domain.tld/my-new-url.php
Action
Now let's try a different approach. Say you need to keep the file's name. The file name comes after the last / and before the query string ?.
http://www.someDomain.com/really/long/address/keepThisLastOne.php?name=john
Wil...
MongoDB mongorestore failure: locale::facet::_S_create_c_locale name not valid
...-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=
Now mongo also should do fine.
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How do I rename a project in Xcode 5?
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Xcode 6 (beta 6 as of now) seems to be not very reliable with renaming projects. For me it didn't rename several of the files and groups. It also doesn't rename the physical folder the project is in. To rename my project to be sure that everything...
Getting the name of the currently executing method
...at a lot of work has gone into making HotSpot very reliable. You need to know, though, in case you want your code to not rely on the behavior of a specific JVM.
– Thorbjørn Ravn Andersen
Apr 15 '13 at 8:53
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Xcode 6 iPhone Simulator Application Support location
...licLinkAtPath:aliasPath withDestinationPath:DOCS_DIR error:nil]; #endif Now I've got a simlink that works, even though iOS8 + XCode6 changes my App's Data GUID everytime I build.
– seabass
Sep 22 '14 at 17:56
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How to create a self-signed certificate with OpenSSL
... the Trust Store used by the browser.
Steps 2 - 4 are roughly what you do now for a public facing server when you enlist the services of a CA like Startcom or CAcert. Steps 1 and 5 allows you to avoid the third-party authority, and act as your own authority (who better to trust than yourself?).
Th...