Java Links

JDKs and API docs

JDK 1.5 docs
JDK 1.5 javadoc
JDK 1.5 downloads
JDK 1.6 docs
JDK 1.6 javadoc
JDK 1.6 downloads
JDK 1.7 docs
JDK 1.7 javadoc
JDK 1.7 downloads

Collected Links

Links I’ve collected on Delicious

Development Tools:

25 Best Free Eclipse Plug-ins for Java Developer to be Productive : FromDev Nice collection of popular eclipse plugins.
CloudBees: Cloud Platform as a Service for Java Web Apps, Supported Jenkins/Hudson and Jenkins/Hudson in the Cloud Jenkins (formerly Hudson) CI along with SVN/GIT in a PaaS offering
JD | Java Decompiler Yet another java decompiler. But jad has been getting long in the tooth and has issues with newer java versions, and the author of the blog I just read was a jad user who jumped over. Possibly worth looking at the next time I decompile something. Both standalone and eclipse plugin versions.
Simian - Similarity Analyser | Duplicate Code Detection for the Enterprise Tool to check for code dublication. supports java, has maven plugin
google-diff-match-patch - Project Hosting on Google Code Diff, Match and Patch libraries for various languages.
EclEmma - Java Code Coverage for Eclipse
JRat the Java Runtime Analysis Toolkit
Kato Looks pretty raw right now, but Kato is an apache implementation of JSR 326 - generation and consumption of post mortem and snapshot java diagniostics.
Xrefactory - Source Browser and C and Java Refactoring Tool

Monitoring:

Metrics Metrics is a Java library which gives you insight into what your code does in production.
lookfirst/jmxtrans - GitHub Adaptor library from JMX to various monitoring frameworks, including graphite/carbon
JRDS Jrds is performance collector, much like cacti or munins.
codahale/metrics - GitHub Capturing JVM- and application-level metrics. So you know what's going on. Integrates with Graphite.
Application Monitoring Made Easy for Java Applications Using Nagios | Novell User Communities Nagios Log Appender for Log4J, sends events to nagios via a native java implementation of the Nagios Service Check Acceptor (NSCA) protocol.
Enterprise Software Resource Metering & Application Performance Metric Monitoring | OpenCore Java Application metrics and monitoring
codahale/metrics - GitHub JVM code instrumentation library. Collect the basics gauges, counters, rates, etc.
jManage 2.0 - Open Source Application Management Opensource concole / query tool for JMX mbeans. Has a scriptable command line that is useful for writing nagios checks.
Systems Monitoring, Server Monitoring & Systems Management Software | Hyperic Java based system monitoring console. Now owned by Spring Source. MuleSource uses a forked version
beet Beet does user behavior and performance logging for Spring apps. Recording can be controled via JMX.
Java run-time monitoring, Part 3: Monitoring performance and availability of an application's ecosystem
Java run-time monitoring, Part 2: Postcompilation instrumentation and performance monitoring
Java run-time monitoring, Part 1: Run-time performance and availability monitoring for Java systems
Java Simon API Simon is a monitoring api for Java that adds things like stopwatches and counters. It enableable via config and can do things like conditional logging of just the slow events.
SourceForge.net: ShadowTail Opensource tool for gathering stats via jmx. Uses orca for plotting.

Profiling:

Java development/profiling tool: Classmexer agent Java library to measure deep memory usage of objects.
Home — Java.net Graphical tool for lightweight JVM profiling
Chronon | Time Traveling Debugger and Recorder for Java Chronon, is a "filight data recorder" for java programs. Somewhere between profiling and tracing.
jhat - Java Heap Analysis Tool Java heap analysis tool
Eclipse Memory Analyzer Open Source Project Memory analysis tool for java
oktech-profiler - Project Hosting on Google Code Open source java profiler. Runs in the JVM or collects via JMX.
JRat the Java Runtime Analysis Toolkit

Testing:

Mockrunner java mocking for jdbc
Concordion open source tool for writing automated acceptance tests in Java
vogar - Runs your Java code for you - Google Project Hosting Vogar is a command line tool that attempts to boost your productivity when developing Java programs. It accepts prebuilt .jar files or .java source files. It understands tests, benchmarks, and classes with main methods. It targets your desktop JVM, attached Android devices, or on a far away machine. And it runs interactively during development, or automatically in your continuous build.
PIT mutation testing PIT is a bytecode based mutation testing system for Java.
Gatling Gatling is a web load test framework built in scala that attempts to address issues like "we don't have enough Load runner licenses" and "Jmeter doesn't scale" or "opps we modified the page and all the tests fail"
mockito - simpler & better mocking - Google Project Hosting Mockito is a java mocking framework
IBM Haifa Labs | ConTest - A Tool for Testing Multi-threaded Java Applications ConTest is an advanced testing solution from IBM, whose main use is to expose and eliminate concurrency-related bugs in parallel and distributed software
Cucumber - Making BDD fun BDD test framework done as a dsl in Ruby. Can be used to test java code via JRuby. Has a Maven Plugin
Concordion Another Java BDD frameworkd
JBehave - Behaviour-driven development in Java A Java BDD framework
Watij Web Application Testing in Java
JEXIN Inject exceptions into code
The Grinder, a Java Load Testing Framework Yet another load testing framework. This one has scripting in jython

Interesting Libraries:

Java development/profiling tool: Classmexer agent Java library to measure deep memory usage of objects.
HugeCollections - vanilla-java - Library to support collections with millions or billions of entries. - Vanilla Java Libraries - Google Project Hosting Off heap collections for java
Metrics Metrics is a Java library which gives you insight into what your code does in production.
mockito - simpler & better mocking - Google Project Hosting Mockito is a java mocking framework
GeoTools The Open Source Java GIS Toolkit — GeoTools GeoTools is an open source Java library that provides tools for geospatial data
Netty - the Java NIO Client Server Socket Framework - JBoss Community netty is a java nio client framework from Jboss. Supports http, websocket, ssl, protobuf, etc.
Enterprise Software Resource Metering & Application Performance Metric Monitoring | OpenCore Java Application metrics and monitoring
cofoja - Project Hosting on Google Code Eiffel style pre and post conditions as java annotations.
ICU - International Components for Unicode Ran into this in a blog post by Google. ICU4J seems to extend Java's Unicode support a lot.
jrugged - Project Hosting on Google Code Library of design patterns, in Java, for Robustness
Developer Guide - Protocol Buffers - Google Code Language independent transport by Google. Alledgedly faster alternative to xml, json, etc
JAMon - Documentation Small Java API for collecting performance metrics
beet Beet does user behavior and performance logging for Spring apps. Recording can be controled via JMX.

Distributed Systems:

XSTM - Object Replication for Java, .NET & GWT Cross platform distributed transactional memory
s4 wiki | Main / Documentation S4 is a java based open source platform for event processing by Yahoo
In-Memory Data Grid - Hazelcast - Home Opensource Java Distributed Shared Memory from Apache
IBM Haifa Labs | ConTest - A Tool for Testing Multi-threaded Java Applications ConTest is an advanced testing solution from IBM, whose main use is to expose and eliminate concurrency-related bugs in parallel and distributed software
The Bamboo DHT -- Introduction Bamboo is a Java DHT that is (soon to be was) the implementation behind OpenDHT.
hazelcast - Google Code Distributed implementations java collections and concurrency. Looks kind of interesting
Facebook Developers | Thrift Cross language service framework
cajo: The cajo Project

Frameworks:

Spark - A small web framework for Java Sinatra inspired light weight web framework for Java
caliper - Project Hosting on Google Code Microbenchmarking framework for Java
Naked Objects - Welcome to Naked Objects Interesting POJO framework. You only develop the business objects. Persistence is auto generated vi Hibernate (no shock), and the View and Controller layers are autogenerated as what they call an "object oriented UI". I probably wouldn't do this for a real app. Certainly not a customer facing app or even a non-trivial backend app. But for rapid prototyping the buisness layer DDDish, it might be a useful accelerant.
Concordion Another Java BDD frameworkd
JBehave - Behaviour-driven development in Java A Java BDD framework
google-guice - Google Code Guice is Google's dependency injection framework for Java. As contrast to Spring, it's just dependency injection without all the other bulk that comes with Spring.
Facebook Developers | Thrift Cross language service framework