java.net.SocketException: Broken pipe

The error java.net.SocketException: Broken pipe at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92) at java.net.SocketOutputStream.write(SocketOutputStream.java:136) at java.io.BufferedOutputStream.write(BufferedOutputStream.java:105) at java.io.FilterOutputStream.write(FilterOutputStream.java:80) The above error comes up from a servlet, or a controller when you try to write any thing to response. In most cases, this happens when writing a file to response output stream Reason The reason of the above …

java.awt.AWTError: Assistive Technology not found: org.GNOME.Accessibility.AtkWrapper – when running jasper reports

The problem When filling the jasper reports error java.awt.AWTError: Assistive Technology not found: org.GNOME.Accessibility.AtkWrapper occurs. Full stacktrace when generating HTML report Another error which comes up when generating a pdf report Environment: Jasper reports 6.0.3 Open Jdk 8 Tomcat 8 on docker Solution Run following command from command prompt. sed -i 's/^assistive_technologies=/#&/' /etc/java-8-openjdk/accessibility.properties Or just …

The future of Java servlets and web applications – JSR 340

You must be aware of the Servlet 3.0 spec,  and what cool things it brings to the java web development. If not, you can read it here Introduction to servlet 3.0 new features. Servlet 3.0 was released as part of the JavaEE6 and brings many exciting features like Annotations, web framework playability, built in file upload …

Does java miss a good HTML sanitizer ?

I have been looking for a good Java HTML sanitizer, that would let me sanitize user input based on a whitelist, and would escape other things. There are some examples here and there but none seems so complete as PHP, Ruby, Python and Pearl. Does java really miss a robust HTML sanitizer ? Do you …

mvn eclipce:eclipse gives error – Request to merge when ‘filtering’ is not identical

Description: You get the error Request to merge when 'filtering' is not identical when running mvn eclipse:eclipse on a maven project Root cause: It's because of the change in maven eclipse plugin solution: try this mvn org.apache.maven.plugins:maven-eclipse-plugin:2.6:eclipse

Freemarker sucks, dependency on javax.swing, Wouldn’t run on GAE

I would say freemarker sucks. Yes it does. A template engine has dependency on javax.swing !! Isnt that surprising? Today, I was trying to deploy a Stripe/Freemarker hello world app on GAE and I got following. java.lang.NoClassDefFoundError: javax.swing.tree.TreeNode is a restricted class. Please see the Google App Engine developer's guide for more details. at com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java:51) …

DDD Without any ORM tool, is it possible !!

DDD Without any ORM tool, is it possible !! When reading DDD book and trying out it on a sample project that doesn't use any ORM tool. I came across a question, is it possible to strictly implement DDD without any ORM tool ! Is there any one here who has implemented DDD on any …

SSLHandshakeException: When trying trying to access a HTTPS URL

I was trying to access a HTTPS URL using java.net.HttpURLConnection and got following error. Error javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target Most of the time, this exception occurs when you are using selfsigned certificate. Reason:  The host that you are trying to connect has an …