Rafal Borowiec

Software developer, Team Leader, Agile practitioner, occasional blogger, lecturer. Open Source enthusiast, quality oriented and open-minded.

Enterprise Java
Rafal BorowiecSeptember 24th, 2014
2 562
Using @ConfigurationProperties in Spring Boot
In my latest blog post I described shortly how one can configure mail in Spring Boot application. To inject properties…
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Enterprise Java
Rafal BorowiecSeptember 20th, 2014
1 1,557
Testing mail code in Spring Boot application
Whilst building a Spring Boot application you may encounter a need of adding a mail configuration. Actually, configuring the mail…
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Enterprise Java
Rafal BorowiecAugust 20th, 2014
0 2,852
Validation groups in Spring MVC
Validation constraints in Bean Validation may be added to one or more groups via groups attribute. This allows you to…
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Enterprise Java
Rafal BorowiecAugust 12th, 2014
0 296
Spring MVC Integration Testing: Assert the given model attribute(s) have global errors
In order to report a global error in Spring MVC using Bean Validation we can create a custom class level…
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Enterprise Java
Rafal BorowiecJuly 31st, 2014
1 31
Spring 4.1 and Java 8: java.util.Optional
As of Spring 4.1 Java 8’s java.util.Optional, a container object which may or may not contain a non-null value, is…
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Core Java
Rafal BorowiecJuly 10th, 2014
0 505
JUnit: testing exception with Java 8 and Lambda Expressions
In JUnit there are many ways of testing exceptions in test code, including try-catch idiom, JUnit @Rule, with catch-exception library.…
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Enterprise Java
Rafal BorowiecJuly 3rd, 2014
1 376
Spring 4: CGLIB-based proxy classes with no default constructor
In Spring, if the class of a target object that is to be proxied doesn’t implement any interfaces, then a…
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Enterprise Java
Rafal BorowiecJune 25th, 2014
0 58
Better error messages with Bean Validation 1.1 in Spring MVC application
Bean Validation 1.1, among many new features, introduced error message interpolation using Unified Expression Language (EL) expressions. This allows to…
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Core Java
Rafal BorowiecJune 19th, 2014
0 71
Lambda Expressions and Stream API: basic examples
This blog post contains a list of basic Lambda expressions and Stream API examples I used in a live coding…
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