http://weblogs.java.net/blog/emcmanus/ en-us 2008-05-02T09:07:50-08:00 http://weblogs.java.net/blog/emcmanus/archive/2008/05/javaone_next_we_1.html Next week is JavaOne 2008! I'll be speaking there with Jean-Francois Denise, about upcoming developments in JMX technology. Here are some of the other sessions you might want to attend if you're interested in that... JavaOne emcmanus 2008-05-02T09:07:50-08:00 http://weblogs.java.net/blog/emcmanus/archive/2008/04/a_query_languag.html The JMX API is being updated by JSR 255. That JSR is currently planned to be part of Java SE 7, and some of the API changes it defines have started to appear in JDK 7. So far, the main one is a Query Language. Here's what that is and what it's for. ... Community: JDK emcmanus 2008-04-25T08:21:42-08:00 http://weblogs.java.net/blog/emcmanus/archive/2008/02/do_i_really_nee.html Big applications have a tendency to accumulate enormous classpaths. Looking at such a classpath, you might be hard put to know whether any given jar is really needed. Perhaps it was needed at the time it was added, but that need has long since evaporated. How can you tell? Kyrill Alyoshin has an elegant solution... Programming emcmanus 2008-02-21T09:56:40-08:00 http://weblogs.java.net/blog/emcmanus/archive/2008/02/visualvm_allino.html VisualVM is a new graphical troubleshooting tool that is being developed in a project on java.net. emcmanus 2008-02-20T07:40:07-08:00 http://weblogs.java.net/blog/emcmanus/archive/2008/02/speaking_at_jav.html emcmanus 2008-02-19T02:29:21-08:00 http://weblogs.java.net/blog/emcmanus/archive/2008/02/public_review_o.html The Public Review of JSR 262, "Web Services Connector for JMX Agents", is underway, and there's a new snapshot of the Reference Implementation that corresponds to the Public Review specification.

]]> JSR emcmanus 2008-02-18T08:52:35-08:00 http://weblogs.java.net/blog/emcmanus/archive/2007/12/jmx_api_20_earl_1.html The first draft of JSR 255 is out! This defines version 2.0 of the JMX API. We're planning to integrate it into the Java SE 7 platform. Here's a summary of the important changes. Community: JDK emcmanus 2007-12-28T02:14:27-08:00 http://weblogs.java.net/blog/emcmanus/archive/2007/10/java_snmp_now_a.html The OpenDMK project now includes the SNMP API from Sun's Java DMK product. Kudos to Daniel Fuchs who put in the considerable work to make this happen! Open Source emcmanus 2007-10-04T05:14:52-08:00 http://weblogs.java.net/blog/emcmanus/archive/2007/08/defining_mbeans.html The number one question I get about the JMX API at conferences and other public events is whether there will be support for defining MBeans using annotations. There will. Here are some provisional details. Community: JDK emcmanus 2007-08-31T08:11:57-08:00 http://weblogs.java.net/blog/emcmanus/archive/2007/08/when_can_jmx_no.html The JMX Best Practices guide says notifications can sometimes be lost. Why is that? When might it happen? Some answers. Community: JDK emcmanus 2007-08-23T00:32:53-08:00 http://weblogs.java.net/blog/emcmanus/archive/2007/08/combining_casca.html The Attach API lets you discover and attach to the Java VMs running on your local machine. JMX Cascading lets you federate several JMX agents together. Can we combine the two? Community: JDK emcmanus 2007-08-01T03:09:14-08:00 http://weblogs.java.net/blog/emcmanus/archive/2007/07/comparing_objec.html I was using this Java idiom today, not for the first time, and thought I'd blog it for people not aware of it. You probably know that if you compare two objects x and y using x.equals(y), the result will be false if they are distinct arrays, even if their contents are the same. There is an easy way to get the right result for arrays. Programming emcmanus 2007-07-20T07:50:00-08:00 http://weblogs.java.net/blog/emcmanus/archive/2007/06/top_threads_plu.html Peter Doornbosch has created a much improved version of the JTop sample plugin for JConsole. Community: JDK emcmanus 2007-06-21T08:14:49-08:00 http://weblogs.java.net/blog/emcmanus/archive/2007/06/disassembling_s.html Presenting Serialysis, a library that allows you to disassemble the serial form of Java objects. This can allow you to retrieve information about an object that is not available through its public API. It is also a useful tool when testing the serialization of your classes. Community: JDK emcmanus 2007-06-12T06:51:03-08:00 http://weblogs.java.net/blog/emcmanus/archive/2007/05/custom_types_fo.html MXBeans map between arbitrary Java types and a fixed set of types in javax.management.openmbean called the Open Types. Up until now the mapping rules were fixed. In the Java 7 platform, we're planning to allow customization of the rules. Community: JDK emcmanus 2007-05-30T07:00:14-08:00