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“java.lang.OutOfMemoryError: PermGen space” in Maven build [duplicate]

I'm getting this error while building Maven project, I increased MAVEN_OPTS but all the same, I found some similar posts but they are refering to something else. How do I fix this? ...
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Why {} + {} is NaN only on the client side? Why not in Node.js?

...eAPI && inspectedWindow.console) { inspectedWindow.console._commandLineAPI = new CommandLineAPI(this._commandLineAPIImpl, isEvalOnCallFrame ? object : null); expression = "with ((window && window.console && window.console._commandLineAPI) || {}) {\n" + express...
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What are the differences between NP, NP-Complete and NP-Hard?

...njunction (ANDs) of 3-clause disjunctions (ORs), statements of the form (x_v11 OR x_v21 OR x_v31) AND (x_v12 OR x_v22 OR x_v32) AND ... AND (x_v1n OR x_v2n OR x_v3n) where each x_vij is a boolean variable or the negation of a variable from a finite predefined list (x_1, x...
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LINQ order by null column where order is ascending and nulls should be last

...nslated to LINQ method calls. It turns out that var products = from p in _context.Products where p.ProductTypeId == 1 orderby p.LowestPrice.HasValue descending orderby p.LowestPrice descending select p; will be translated by the compile...
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Django REST framework: non-model serializer

... but it should work :) The CalcClass: class CalcClass(object): def __init__(self, *args, **kw): # Initialize any variables you need from the input you get pass def do_work(self): # Do some calculations here # returns a tuple ((1,2,3, ), (4,5,6,)) ...
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pytest: assert almost equal

...0.3], [0.6]]) leads to a TypeError. If found that Numpy's np.testing.assert_allclose([[0.1 + 0.2], [0.2 + 0.4]], [[0.3], [0.6]]) (see answer below) did work for this case. – Kurt Peek Sep 12 '17 at 10:35 ...
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How to manually set an authenticated user in Spring Security / SpringMVC

...ervice.createNewUser(userRegistrationFormBean, userLocale, Constants.SYSTEM_USER_ID); String emailAddress = userRegistrationFormBean.getChooseEmailAddressFormBean().getEmailAddress(); String password = userRegistrationFormBean.getChoosePasswordFormBean().getPassword(); doAuto...
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Always pass weak reference of self into block in ARC?

...olve by making an explicitly weak reference to self for the block to use: __weak MyObject *weakSelf = self; [self setMyBlock:^(id obj, NSUInteger idx, BOOL *stop) { [weakSelf doSomethingWithObj:obj]; }]; But this should not be the default pattern you follow when dealing with blocks that ca...
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Passing arrays as url parameter

... There is a very simple solution: http_build_query(). It takes your query parameters as an associative array: $data = array( 1, 4, 'a' => 'b', 'c' => 'd' ); $query = http_build_query(array('aParam' => $data)); will return string(63) "...
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jQuery scroll() detect when user stops scrolling

...{ $('#scrollMsg').html('DONE!'); })); The second parameter is the "at_begin" flag. Here I've shown how to execute code both at "scroll start" and "scroll finish". Using Lodash As suggested by Barry P, jsFiddle, underscore or lodash also have a debounce, each with slightly different apis. $(...