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Error - trustAnchors parameter must be non-empty

...and what truststore is being used you can add the property javax.net.debug=all and then filter the logs about truststore. You can also play with the property javax.net.ssl.trustStore to specify a specific truststore. For example : java -Djavax.net.debug=all -Djavax.net.ssl.trustStore=/Another/...
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What is the id( ) function used for?

... Python objects. Is it the same with memory addresses in C? Conceptually, yes, in that they are both guaranteed to be unique in their universe during their lifetime. And in one particular implementation of Python, it actually is the memory address of the corresponding C object. If yes, wh...
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Disable JavaScript error in WebBrowser control

... Should also have added that this.AxIWebBrowser2.Silent = true suppresses all pop-ups, not just script errors, hence the WebBrowser.ScriptErrorsSuppressd appears to be improperly named. – redcalx Jun 12 '13 at 14:53 ...
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Do I need elements in persistence.xml?

...k at the Chapter2. Setup and configuration too for more details. EDIT: Actually, If you don't mind not being spec compliant, Hibernate supports auto-detection even in Java SE. To do so, add the hibernate.archive.autodetection property: <persistence-unit name="eventractor" transaction-type="RESOUR...
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find vs find_by vs where

... Use whichever one you feel suits your needs best. The find method is usually used to retrieve a row by ID: Model.find(1) It's worth noting that find will throw an exception if the item is not found by the attribute that you supply. Use where (as described below, which will return an empty arr...
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When is std::weak_ptr useful?

...want to keep them in memory, so you hold a strong pointer to them. Periodically, you scan the cache and decide which objects have not been accessed recently. You don't need to keep those in memory, so you get rid of the strong pointer. But what if that object is in use and some other code holds a s...
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When to choose checked and unchecked exceptions

...eople misunderstand what this means. Predictable but unpreventable: The caller did everything within their power to validate the input parameters, but some condition outside their control has caused the operation to fail. For example, you try reading a file but someone deletes it between the time ...
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Google Espresso or Robotium [closed]

..., but also cause tests to run slower than necessary. API. Espresso has a small, well-defined and predictable API, which is open to customization. You tell the framework how to locate a UI element using standard hamcrest matchers and then instruct it to either perform an action or check an assertion ...
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Find the last element of an array while using a foreach loop in PHP

...x compared to this one. I have not ran any tests but I guess this answer shall be faster as it is not extracting array of keys.This shall have O(1) speed – Vaibhav Kamble Mar 20 '09 at 7:09 ...
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How can I determine the URL that a local Git repository was originally cloned from?

...re several forks on GitHub, and I neglected to note which one I took originally. How can I determine which of those forks I pulled? ...