Harsh J

Checking if your JRE has the Unlimited-strength Policy Files in place

Thu, 03 Dec 2015 00:00:00 +0000

To use the included 256-bit encryption algorithms within Java, Oracle Java JDK or JRE requires you to download and replace the US_export_policy.jar and local_policy.jar files under your $JAVA_HOME/jre/lib/security/ directory with a variant of these files called JCE Unlimited Strength Jurisdiction Policy Files obtained here.

GNU egrep does not support the \d shorthand

Sun, 01 Nov 2015 00:00:00 +0000

I learnt this the hard way (and said hello to a large living world of non-standard regex implementations). The GNU grep/egrep documentation page documents all their special backslash character support but \d is not one of them.

Duplicating a tab in Safari

Thu, 22 Oct 2015 00:00:00 +0000

If you are an Apple Safari user, you may have noticed that it lacks a duplicate tab feature (such as the one in Mozilla Firefox or Google Chrome, when you right click a tab area).

OS X El Capitan Upgrade Hangs

Fri, 02 Oct 2015 00:00:00 +0000

Just like it did when I upgraded from OS X Mavericks to OS X Yosemite a year ago, attempting an upgrade from OSX Yosemite to OSX El Capitan hung again in the same nondescript manner - a blank/empty screen with the pointer, for seemingly infinite period.

Writing a simple Kudu Java API Program

Thu, 01 Oct 2015 00:00:00 +0000

This post is about using Apache Kudu service, via its Java API interface, in a Maven-based Java project.

Checking out a git branch when multiple remotes (repos) are involved

Wed, 30 Sep 2015 00:00:00 +0000

When you are dealing with a local git repository which has multiple remotes defined (i.e. has multiple remote repositories possibly carrying the same branches, such as multiple forks), then the right way to checkout a working branch from one of them is to use the below syntax:

git checkout -b master remote-name/master

Purging away unnecessary local maven repository jars

Tue, 22 Sep 2015 00:00:00 +0000

As someone who works with a lot of Java (or other JVM related) projects at work, I often notice my $HOME/.m2 local maven cache grows quite big over time. This is due to a natural result of a lot of mvn install and other equivalent commands, that build and install the project and recursive dependency jars locally.

A fresh start

Mon, 13 Jul 2015 00:00:00 +0000

Welcome, whoever still visits here!