The java.lang.Process class provides methods to get input or output from a process, wait for process to complete, check exit status or kill the process. From Java 7 onwards, the process streams could be redirected to files. In Java 9, certain enhancements(JEP 102) were done to the Process API and a new interface called ProcessHandle […]
Tiered Attribution for javac – Java 9
In Java 8, the implementation of type-checking at compiler level was based on Speculative Attribution. In Speculative Attribution, the same tree can be type-checked against multiple targets at runtime. This is particularly used in target typing for lambda expressions, resolving diamond expressions for generics, etc. To understand more about target typing in lambda expressions, we […]
Five small amendments to the Java Programming Language in Java 9 – Milling Project Coin
Project Coin was a subproject of OpenJDK aimed at determining the set of small language changes that had to be added to JDK7. Some of the proposals under Project Coin were incorporated in JDK7. A JDK Enhancement Proposal (jep – 213) was added to address and include amendments to these changes in Java 9. There […]
HTTP/2 Client In Java 9
HTTP/1.1 is one of the most successful protocols widely used on the web today. For the past 15 years, HTTP/1.1 had been beneficial for growth of the internet but there were subtle problems with the protocol which have started to show up of late. For example, a web application which is resource intensive has a […]
New Version-String Scheme – Java 9
Java versioning system has been a bit confusing with respect to updates and security releases till Java 8. All critical patches had been odd numbers and limited updates have been even numbered. This make it difficult to find out which version contains all the latest security fixes, for instance. There were different ways to address […]
Ahead Of Time Compilation – Java 9
One of the main goals while designing the Java language was to make application portability a reality. Java was designed in such a way that the same .class files created in one operating system can run seamlessly in another operating system or another computer without fail as long as the target system has a working […]
Secure REST Service – Basic authentication
In this tutorial, we will learn how to secure a Jersey based REST server implementation using Basic Authentication. As we have already discussed various ways of securing a REST Service, here we look in detail at Basic Authentication. REST Basic Authentication Tutorial In Basic Authentication, the client will send user credentials every time data is […]
Secure a REST Service
When we develop REST APIs for our application to enable integration with other applications, often we would want to secure the interface. This is done for a variety of reasons. We would like to prevent sniffing of data on the network by unauthorized people. We may want to categorize each user using user role and […]
Compact Strings In Java 9
In any of the Java applications Strings are used extensively. I can’t remember a single application where I have not used Strings. So any optimization on String would affect almost each and every Java application. So it would be important to know what Java 9 is bringing in with String optimizations. Java 9 is coming […]
JShell – Explore the Java 9 interpreter
JShell is a new interactive command line tool for accessing the Java language. It is introduced in Java 9. Working with JShell is similar to using the python interpreter via commandline. These tools can be collectively called as REPL (Read-Eval-Print-Loop) because they take inputs, evaluate and returns output to the user via command line. You […]