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Why does ConcurrentHashMap prevent null keys and values?
...re is other sorts of locking done. That's what makes it "Concurrent". In order to do that, it needs an Object to hang on.
– Paul Tomblin
Mar 30 '09 at 19:26
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Why am I not getting a java.util.ConcurrentModificationException in this example?
... remove = Integer.valueOf(3);
A solution:
Traverse the array in reverse order if you are going to remove a list element. Simply by going backwards through the list you avoid visiting an item that has been removed, which removes the exception.
//To remove items from the list, start from the end ...
How do you redirect HTTPS to HTTP?
...est has been received - which means you would still need a certificate, in order for the client to set up the connection to send the request over!
However if the backup machine will appear to have the same hostname (as far as the client is concerned), then there should be no reason you can't use th...
throws Exception in finally blocks
...e close method will be called on each of these three resources in opposite order in which they were created. It means the close method would be called first for ResultSetm then the Statement and at the end for the Connection object.
It's also important to know that any exceptions that occur when th...
How to mock a final class with mockito
...re. It uses a combination of Java agent instrumentation and subclassing in order to enable mockability of these types. As this works differently to our current mechanism and this one has different limitations and as we want to gather experience and user feedback, this feature had to be explicitly ac...
Completely uninstall PostgreSQL 9.0.4 from Mac OSX Lion?
... tanks again @JamesA. do i need to remove anything manually in order to be sure the slate is wiped completely clean? You can check my latest update with the output of "sudo find"
– Ramy
Nov 7 '11 at 15:26
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How to tell if a JavaScript function is defined
... the JavaScript interpreter is trying to resolve the symbol not_defined in order to pass its value to isFunction() and fails to resolve it. Nothing can be done to the definition of isFunction() to solve this problem.
– Jason Bunting
Oct 31 '12 at 22:20
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Failed to load resource: net::ERR_INSECURE_RESPONSE
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In order to add a such rule, you have to get the certificate. If it's yours, you already have it. If don't, click the https left icon on adressbar > certificate informations > details > export. Then, use this file
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What's the scope of a variable initialized in an if statement?
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Scope in python follows this order:
Search the local scope
Search the scope of any enclosing functions
Search the global scope
Search the built-ins
(source)
Notice that if and other looping/branching constructs are not listed - only classes, functio...
How to disable admin-style browsable interface of django-rest-framework?
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