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Error - trustAnchors parameter must be non-empty

...at this workaround is relevant to your particular issue. # # The parameter by itself can be used as a workaround, as well. # 0. First make yourself root with 'sudo bash'. # 1. Save an empty JKS file with the default 'changeit' password for Java cacerts. # Use 'printf' instead of 'echo' for Dock...
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Difference between namespace in C# and package in Java

...++/C#, namespaces are just used for partitioning names to avoid collisions by accidentally using the same name for a variable in different places. In Java, packages are far more than just that - packages are used for modules, the naming aspect is just a part of it. ...
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Can I safely delete contents of Xcode Derived data folder?

...ete, and using the XCode UI, each project's data individually. So I stand by my previous comment, though I've now implemented William's alias in my .bashrc. – gone Jun 19 '16 at 9:42 ...
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Get/pick an image from Android's built-in Gallery app programmatically

...pdated this example code with the information provided in the answer below by @mad. Also check the solution below from @Khobaib explaining how to deal with picasa images. Update I've just reviewed my original answer and created a simple Android Studio project you can checkout from github and impor...
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What is the meaning of the CascadeType.ALL for a @ManyToOne JPA association

...ging to a user if this user is deleted. BTW: you may want to add a mappedBy="addressOwner" attribute to your User to signal to the persistence provider that the join column should be in the ADDRESS table. share | ...
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How to calculate number of days between two dates

...to force the diff to be inclusive or exclusive at the "ends" (as suggested by @kotpal in the comments). Set third argument true to get a floating point diff which you can then Math.floor, Math.ceil or Math.round as needed. Option 2 can also be accomplished by getting 'seconds' instead of 'days' and...
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What happened to “HelveticaNeue-Italic” on iOS 7.0.3

...rs to be fixed in the developer preview of iOS 7.1. Here is code (provided by Apple in the dev forums) to workaround the issue: #import <CoreText/CoreText.h> CGFloat size = 14; UIFont *font = [UIFont fontWithName:@"HelveticaNeue-Italic" size:size]; if (font == nil && ([UIFontDescript...
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Running junit tests in parallel in a Maven build?

... <parallel> is actually supported by surefire if you're using Junit 4.7 or later. surefire guide – jontejj Apr 13 '13 at 17:18 add a c...
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How to combine class and ID in CSS selector?

...ng an id and a class on one element, but you shouldn't need to identify it by both for one rule. If you really want to you can do: #content.sectionA{some rules} You don't need the div in front of the ID as others have suggested. In general, CSS rules specific to that element should be set with t...
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Difference between fprintf, printf and sprintf?

...tive it is simply a producer (input stream) or consumer (output stream) of bytes. It can correspond to a file on disk, to a pipe, to your terminal, or to some other device such as a printer or tty. The FILE type contains information about the stream. Normally, you don't mess with a FILE object's ...