I’m trying to retrieve a default validation error-message using MessageSource. The code I’m working with uses reflection to retrieve the value of the message parameter. On a constraint that does not override the message parameter, I would like to retrieve the default error message. When I invoke t…
Why use finally
I never properly understood the use of the finally statement. Can anyone tell me what the difference is between: on the one hand and: On the other Answer They differ if the try-block completes by throwing a java.lang.Throwable that is not a java.lang.Exception, for instance because it is a java.lang.Error suc…
Why use inheritance at all? [closed]
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How to monitor slow SQL queries executed by JPA and Hibernate
Is there any Hibernate property I could set to see all the slow queries? I’, interested in queries that take too much time to return the result set. I’m using Spring with Hibernate, configured via an applicationContext.xml Spring configuration file. Answer I have 2 suggestions: you could use Oracl…
How do I get the underlying type of a proxy object in java?
I’d like to access the classname of the underlying class which is an instance of java.lang.reflect.Proxy. Is this possible?
“unable to locate Spring NamespaceHandler” error
I’m creating a stand-alone Sava application with Spring, to handle the JDBC access. The application works fine on every test and I decided that I need a jar to be deployed our clients. They might not have spring in their classpath, so I used maven-assembly-plugin to handle the jar creation with dependen…
Content-Length header already present
I am using the Apache HttpClient (4.1) included in Android to execute a HttpPut. I have verified that I only have 1 content-length header. However, every time I send the request, I get a protocol exception about the Content-Length header already specified. Caused by: org.apache.http.ProtocolException: Content…
Is there an equivalent to memcpy() in Java?
I have a byte[] and would like to copy it into another byte[]. Maybe I am showing my simple ‘C’ background here, but is there an equivalent to memcpy() on byte arrays in Java? Answer You might try System.arraycopy or make use of array functions in the Arrays class like java.util.Arrays.copyOf. Bot…
What is an open free to use radio / music streaming service I can access via java [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. We don’t allow questions seeking recommendations for books, tools, software libraries, and more. You can edit the question so it can be answered with facts and citations. Closed 7 years ago. Improve this ques…
What is the preferred way to specify an HTTP “Location” Response Header in Spring MVC 3?
What is the preferred way to specify an HTTP “Location” Response Header in Spring MVC 3? As far as I can tell, Spring will only provide a “Location” in response to a redirect (“redirect:xyz” or RedirectView), however there are scenarios where a Location should be sent along…