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Travel Report: JavaOne 2013 – Back To Glory

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I’m back since a few days already and needed to catch up with all the things which had been on hold for the last couple of days. It was the busiest time of the year for me. A complete week of JavaOne and OpenWorld in San Francisco. A very brief travel report. Annual ACED Briefing Many of you know that ...

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XML Security with Digital Signature in JAVA

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Introduction As you know XML plays a major role in our product or project development and from an XML document we gather lot of information and also we can perform CRUD operations with XML files. But it is a matter of concern as to how we can ensure that the data available in an XML file are authentic and data ...

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Creating Password-Based Encryption Keys

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This article discusses creating password-based encryption PBE keys. First a reminder of earlier points – as a rule you should, when practical, use the PBE key as a master key that is used solely to unlock a working key. This has three major benefits: You can have multiple passwords, e.g., an escrowed recovery key, You can change your password without ...

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A Few Thoughts About Method Implementation

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In chapter 17 of “Clean Code” by Robert C. Martin, the author describes the idea of “code smells,” practices in development that, while they don’t explicitly violate any standards (whether unwritten or not), they leave behind a “stench” of inexperience or lack of discipline. I like this idea; it seems to me that I encounter these “code smells” fairly often ...

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Send Email with Attachment in Android

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This is a simple demo for send email in Android with attachment. For attachment I am using Intent.ACTION_GET_CONTENT. Don’t forget to add permissions in your manifest.xml-               <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.READ_INTERNAL_STORAGE" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 1)MainActivity.java package com.manish.sendemaildemo; import android.app.Activity; import android.content.Intent; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.provider.MediaStore; import ...

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CapeDwarf – Google App Engine on Java EE

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I have many hobbyhorses. Coming all the way from the early Java EE specifications and having done the “cloud” excursion with Java EE 7 I was curious to see what newly announced CapeDwarf project has in stock to bring Google’s Platform as a Service offering “Google App Engine” on premise. The Story so Far I did play around with App ...

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Guava 15 – New features

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A new version of the Guava library was released earlier this month and contains several new features and improvements. Here is an overview of some of the significant API additions in this release: 1. Escapers Escapers allow you to “escape” special characters in a string in order to make the string conform to a particular format. For example, in XML, ...

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Sending Email with Java and Akka actors

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Akka is a concurrent framework written by Scala. Here I demonstrate sample application to send emails with Akka and implemented in Java. Reasons I decided to use Akka framework other than concurrency. Built-in configurable supervisor strategy to monitor child workers and decide what policy applies when there is an exception. Can reschedule delivery when application throwing some specific exception. Use ...

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Salary Negotiation For Geeks

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Advice on salary negotiation is abundant, but material written for the general public may not always be applicable to a technology sector where demand is high and the most sought after talent is scarce.  There is quite a bit of misinformation and the glorified mythology of negotiation is often mistaken for the much less interesting reality where little negotiation actually ...

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Javaone 2013 Review

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tl;dr I attended Javaone again this year. It was fun. Sunday The conference kicked off on Sunday, with user group sessions and the main keynote. I was actually unable to attend those, since I was running a Java University training session on the new features in Java SE 7 & 8. This covered project coin, NIO 2 and Fork/Join framework ...

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