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Month: April 2017

notes/technology

Spring boot and Open UI5 error : JSON.parse: unexpected end of data – when setting resourceroots

Posted on April 26, 2017 by Sreekumar Kj

Problem : After setting the tag data-sap-ui-resourceroots the UI5 loading stops with the error “JSON.parse: unexpected end of data …” Reason : Spring boot thyme...

technology

Spring boot : Testing Cassandra Repositories using Cassandra Unit

Posted on April 21, 2017 by Sreekumar Kj

This short tutorial is about getting test classes running for the Cassandra repositories in a Spring boot application. The example provided uses Maven, Spring-d...

notes/technology

Spring boot application : local URL doesn’t load in an IFrame

Posted on April 13, 2017 by Sreekumar Kj

Problem : Application URLs (local urls) not loading in iframe inside an application UI. Reason : Spring sets the X-Frame-Options to Deny by default. Fix : Allow...

notes/technology

How to show custom favicon in Vaadin UI ?

Posted on April 12, 2017 by Sreekumar Kj

Add this custom Vaadin servlet to show a different favicon (other than the Vaadin default) in your UI application – [java] import com.vaadin.server.*; import co...

Miscellaneous/Society

A Javascript hack for Mohanlal-Rekha puzzle

Posted on April 8, 2017 by Sreekumar Kj

Click on any node to find Mohanlal’s relation to that person (default selection is actress Rekha). Disclaimer : Based of the Whatsapp forward* only, which is gi...

notes/technology

Openfire does not listen to port 5222

Posted on April 5, 2017 by Sreekumar Kj

Problem : Openfire server does not listen to port 5222. Symptoms : netstat -tulpn | grep LISTEN – will not show ports 5222 or 5223. tail -1000 /opt/openfire/log...

notes/technology

Precedence and best practices for Apache ProxyPass

Posted on April 3, 2017 by Sreekumar Kj

 To set priority/order of ProxyPass (and ReverseProxyPass) rules, write the one with most precedence above the rest, and so forth. Delete any non-dot-confs (.co...

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