Michael Scharhag

About Michael Scharhag

Michael Scharhag is a Java Developer, Blogger and technology enthusiast. Particularly interested in Java related technologies including Java EE, Spring, Groovy and Grails.

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MongoDB: GridFS remove method deletes all files in bucket

Some time ago we ran into strange behaviour of MongoDB’s GridFS which caused me creating a Bug Ticket for the MongoDB Java driver. Today I found the link to the bug ticket in ...
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Six things I learned for software localization

This blog post is a personal compilation of six technology independent things I learned in the past months about software localization. A few weeks ago we finally went live with our ...
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Groovy’s magical NullObject

In this post I am going to explain some not that obvious differences of null in Java and null in Groovy. Let’s start with the following line:               Object ...
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Getting Started with method security in Grails using Spring Security

This blog post will be about implementing method level security with security expressions in Grails using the Spring Security plugins. I assume you have some basic understanding of ...
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Grails: Calling bean methods in Spring Security expressions

Some days ago while working on a Grails application I was in a situation where a wanted to call a bean method from a Spring security SPEL expression. I was using the @PreAuthorize annotation ...
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