I’m getting this error intermittently. I have a program that uses the java aws sdk and loads over the 10s of thousands of small files to s3. I see this error intermittently. Could not find any helpful answer after doing a quick search on the internet. Note the calling program is single threaded. The und…
How can I use a Selenium type method?
I have a JSP page with an input text field. I wrote a Selenium test case that verifies that the search input text is present. The verifyTrue test returns true. However, the selenium.type test failed with this error: What should I do to make the test work? Answer The first parameter needs to be a selector. sea…
Converter from Json into groovy CODE?
It’s a kind of odd question for an odd situation. I have a large JSON structure which I would like to represent in running groovy code. I need groovy objects that mirror the same structure as the JSON objects. As to be expected a web search mostly returns results with groovy/json runtime conversion stuf…
Long[] to long[] and vice versa?
Does anybody know an efficient, quick and clean way to convert Long[] to long[] and vice versa in Java outside the obvious for-loop with (un)box©? Note: This is not about unboxing Long or boxing long. I am explicitly talking about arrays! “There is no better way than loop and copy” would a…
Why do we need global-forwards and global-exceptions in struts?
I have a basic question in struts why do we need to have <global-forwards>and <global-exceptions> in struts-config.xml. If we can achieve the same things with <action-mappings> itself. Answer <global-forwards> Consider you are validating the username password for different urls like up…
Maven skip compile
I want to use Maven to execute a certain plug-in that only needs the source code but I do not want Maven to compile anything (mostly because the project just doesn’t compile). How do I tell Maven to skip the compile step and just launch its plug-in and then package the generated resources together in a …
How to add radio buttons in button group?
After dragging and dropping button group in Netbeans 7.2, how to add radio button in that button group? Answer There’s a Button Group field in the radio button’s property. Set this value for each of the radio button that you want to add in the group to the button group’s name.
Logarithm Algorithm
I need to evaluate a logarithm of any base, it does not matter, to some precision. Is there an algorithm for this? I program in Java, so I’m fine with Java code. How to find a binary logarithm very fast? (O(1) at best) might be able to answer my question, but I don’t understand it. Can it be clari…
Match a string containing a comma (eg 1,5)
i want to check if the string i take from a Textfield has a comma, in order to drop it and ask for a new value with dot. i try to use textTestAr.trim().matches(“^[,]+$”) but nothing happens,…
Java Regular Expression split keeping contractions
When using split(), what regular expression would allow me to keep all word characters but would also preserve contractions like don’t won’t. Anything with word characters on both sides of the apostrophe but removes any leading or trailing apostraphes such as ’tis or dogs’. I have: but…