All posts in 'Java'

Javas String.replaceAll

21-Jul-09

The following statement "foo baz".replaceAll("baz","$bar");"foo baz".replaceAll("baz","$bar"); will present you an java.lang.IllegalArgumentException: Illegal group reference exception as the replacement string can contain backreferences to the search pattern as stated in Mather#replaceAll: This method first resets this matcher. It then scans the input sequence looking for matches of the pattern. Characters that are not part of any […]

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Grails, Hibernate, Current Session Context

12-Feb-09

Graeme was so kind to help me with this problem. My app worked well with Grails 1.0.4 but not in 1.1-beta3 any more. My first wild guess leading to a HibernateException: contains is not valid without active transactionHibernateException: contains is not valid without active transaction exception was my use of annotated Hibernate classes together with […]

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Grails startup parameter

09-Feb-09

Just some snippets from the doku that I tend to forget: Run grails on a different port: grails -Dserver.port=9090 run-appgrails -Dserver.port=9090 run-app Run grails with a different environment: grails prod run-app // production grails -Dgrails.env=mycustomenv run-app // mycustomenvgrails prod run-app // production grails -Dgrails.env=mycustomenv run-app // mycustomenv

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Some random Grails thoughts and tipps

04-Dec-08

Lately i’ve been rambling and ranting a lot on twitter about the Grails framework. To my surprise, many other developers actually read this tweets and helped me out on some problems. Thanks a lot gals and guys, i really appreciate that. Me rambling isn’t meant to be personal at any time, i guess you know […]

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