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I’m in the process of teaching myself how to use Git. I’ve been using SVN for the last several few years and CVS before that. Precondition: I use the Eclipse IDE and it’s become really dear to me. So, I asked a nerdy colleague for advice: “Dude, has EGit reached a mature state or should […]
Checkout the mojo source code Run mvn install on the mojo Change to the project that uses the mojo for its build Run mvnDebug <whatever options> -> Maven waits for a debugger to attach before executing Setup a new remote debugging configuration in Eclipse, using the plugin project for source and connecting to localhost:8000 (Maven […]
Assume entity A has a one-to-many relationship to B. So, you’d have a method like A#getBs(). However, sometimes you might/will only need the number of Bs and not the entities themselves i.e. you need the count. However, if you called A#getBs()#getSize() you’d effectively initialize the collection and thereby loading entities into memory for no reason. […]
So much information on Spring OpenID is outdated so quickly…Lots of articles and blog entries describe solutions with Spring Security 2.x which is slightly different from 3.x. I recommend sticking with the sample application at http://repo1.maven.org/maven2/org/springframework/security/spring-security-samples-openid/<your_version>/spring-security-samples-openid-<your_version>.war as a reference. Also, I found http://www.packtpub.com/article/opening-up-to-openid-with-spring-security quite helpful. One caveat though is worth mentioning here: the Spring sample […]
When you start the Dalvik Debug Monitor Server (DDMS) in your Android development environment you might notice its mysterious logo: I asked my myself: where the heck is this place? What’s the story behind that? My first guess was northern Scandinavia. Turns out I wasn’t quite right but not very wrong either. I compared it […]
If you use ServletFilters that are mapped to URLs/resources that don’t physically exist (e.g. such as Paul Tuckey’s UrlRewriteFilter) IBM WebSphere 6.1 will answer such requests with “Error 404: SRVE0190E”. If WebSphere runs in trace mode you’ll see a FileNotFoundException in the log file. How to work around SRVE0190E This is yet another idiotic WebSphere […]
Java allows to use a custom VM-wide SSLSocketFactory implementation like so: HttpsURLConnection.setDefaultSSLSocketFactory(SSLSocketFactory). Thus, you can either implement your own SSLSocketFactory or you can configure a regular instance according to your needs/environment. You have to understand that there are probably very few use cases where this method actually really helps. Setting a static default SSLSocketFactory influences […]
When you need to support self-signed SSL certificates in your Apache HttpClient based application you can use the contributed EasySSLProtocolSocketFactory as described in the HttpClient docs. Instead of using HttpClient’s HostConfiguration object directly you’d modify its protocol socket factory in your code like so: … if (config.isAllowSelfSignedCertificates()) { ProtocolSocketFactory factory = new EasySSLProtocolSocketFactory(); try { […]
In a recent stackoverflow.com question I asked for input on how to implemented animated GIFs in SWT table/tree viewer cells. Below is some code of the final solution. Animation thread The animation thread can be asked for the “current frame index” (CFI) by interested parties. The CFI thusly denotes the frame of an animated GIF […]