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JDK 6 Update 7: Java VisualVM Included

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JDK 6 Update 7 has been released. The full internal version number for this update release is 1.6.0_07-b06 (where "b" means "build"). The external version number is 6u7. Included in JDK 6u7 is version 10.0 of the Java HotSpot Virtual Machine.

Security Baseline

This update release specifies the following security baselines:

JRE Family Version Security Baseline
5.0 1.5.0_16
1.4.2 1.4.2_18

For more information about the security baseline, see Deploying Java Applets With Family JRE Versions in Java Plug-in for Internet Explorer .

OlsonData 2008b

This release contains Olson time zone data version 2008b. For more information, refer to 6679340 or see US DST Timezone Updater.

Java VisualVM

Java VisualVM is provided as part of this update release. Java VisualVM is a tool with a visual interface for viewing detailed information about Java applications while they are running on a Java Virtual Machine (JVM), and for troubleshooting and profiling these applications. Various optional tools, including Java VisualVM, are provided with Sun's distribution of the Java Development Kit (JDK) for retrieving different types of data about running JVM software instances. Java VisualVM federates these tools to obtain data from the JVM software, then re-organizes and presents the information graphically enabling you to view different data about multiple Java applications uniformly, whether they are running locally or on remote machines. Furthermore, developers can extend Java VisualVM to add new functionality by creating and posting plugins to the tool's built-in update center.

For more information about VisualVM, check the Product Documentation, the Project Home Page and Documentation Index.

Bug Fixes

This release contains fixes for one or more security vulnerabilities. For more information, please see Sun Alerts 238687, 238628, 238965, 238966, 238967, 238968, and 238905.

Other bug fixes are listed in the following table.

BugId Category Subcategory Description
6511756 hotspot jvmpi forte_is_valid_method() should call CollectedHeap::is_in_reserved() rather than is_in()
6671051 java classes_lang (process) Runtime.exec() hangs if signalled during fork/exec
6652375 java classes_security Add replacement GlobalSign Root CA to JDK
6696605 java classes_security Add Secom root certificates to the JDK
6656050 java classes_security Add AOL Root CA #2 to JDK
6679340 java classes_util_i18n (tz) Support tzdata2008b
6685178 java monitoring REGRESSION: NPE in ConnectorBootstrap when Agent.getManagementProperties() returns null.
6643315 java sunservicetags Product Registration Info button in the Windows JDK installer should use default browser
6656520 java_plugin misc Loading cacerts file from running JRE directory (JRE 1.4.2)
6567254 java_plugin ns6 Stack stomp in CSecureJNIEnv
6674757 java_plugin plugin Firefox hang upon first applet launch with Windows OEM builds of Java
6709297 javawebstart other Wonderland does not install via webstart with 6u10 b21 or later
6620632 jaxp stax DTD event is missing entity and notation information
jdk6-u7.png17.36 KB
Published at DZone with permission of its author, Geertjan Wielenga.


Surya De replied on Wed, 2008/07/09 - 3:09pm

Is that tool similar to the jconsole tool that used to be bundled?

Geertjan Wielenga replied on Wed, 2008/07/09 - 3:39pm

Similar, yes, but better! And JConsole is still bundled, if you prefer to use it you still can. This tool, though, is more modern looking, i.e., very visual. Plus, any plugins you created for JConsole can still be used in Java Visual VM too.

Kevin Daly replied on Thu, 2008/07/10 - 11:59am

Ok, I'm confused, does this mean that Update 10 is not going to be release in the middle of 2008 (already past). How does this release effect the release of update 10?

Does anyone know the expected timeline for the release of update 10?

The clock is ticking brothers and sisters, update 10 has the potential to totally revitalize Java and make it a strong contender against Flash & Silverlight, but if it takes much longer to deliver the momentum of Flash/Flex and Silverlight may become too much for Java to overcome.

Kookee Gacho replied on Mon, 2012/05/28 - 7:57am

To make entity beans as local you can follow the above mentioned approach depending on the EJB version.-Arthur van der Vant

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