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How to kill Java with a Regular Expression

We recently stumbled upon a phenomen we absolutely weren’t aware of: You can kill any Java IDE and also any Java process with a simple regular expression… Back in university, ...
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How to Speed Up Apache Xalan’s XPath Processor by Factor 10x

There has been a bit of an awkward bug in Apache Xalan for a while now, and that bug is XALANJ-2540. The effect of this bug is that an internal SPI configuration file is loaded by Xalan thousands ...
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Six Java features to stay away from

I have spent countless hours troubleshooting different applications. Via the experience I can draw a conclusion about several Java SE features/APIs which most of the developers should ...
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Java Reflection Tutorial

In this tutorial, I mainly write some examples to introduce what Java reflection can do. Hopefully, it can give you an overview of this concept. Please leave your comment for suggestions. What ...
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Simplicity vs. Robustness – Demonstrated On Lock File Handling

Today we will discuss a conflict between the design values of keeping things simple, stupid (KISS) and robustness, between underdesign and overdesign. We were writing a batch Java application ...
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What’s new in Java 8 (Part II – What might come)

Disclaimer: I do not work for Oracle or represent Oracle in any way. This list of features is not official. This is just part of my research as an “outsider”. This is part II of ...
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Top 10 Questions of Java Strings

The following are top 10 frequently asked questions about Java Strings. 1. How to compare strings? Use “==” or use equals()? In brief, “==” tests if references are equal and ...
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Scalable Counters For Multi Core

Counters are required everywhere , for e.g. to find key KPI of application, load on application, total number of request served, some KPI for finding throughput of application & ...
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Better JUnit-based Unit Tests with NetBeans 7.4 beta Hints

In my last post, I wrote about hints provided in NetBeans 7.4 beta that improve a developer’s ability to avoid nasty runtime issues with Java exception handling. In this post, ...
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On a quest for missing stacktraces

One comment to our recent blog post brought back some memories about a specific experience. The type of experience I wish I had not experienced. Long time before we founded Plumbr I ...
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