Chapter 2. Eclipse Temurin features

Eclipse Temurin does not contain structural changes from the upstream distribution of OpenJDK.

For the list of changes and security fixes that the latest OpenJDK 17 release of Eclipse Temurin includes, see OpenJDK 17.0.7 Released.

OpenJDK enhancements

OpenJDK 17 provides enhancements to features originally created in previous releases of OpenJDK.

Certigna (Dhimyotis) root certificate authority (CA) certificate added

In release OpenJDK 17.0.7, the cacerts truststore includes the Certigna (Dhimyotis) root certificate:

See JDK-8245654 (JDK Bug System).

New Java Flight Recorder (JFR) event jdk.InitialSecurityProperty

With OpenJDK 17.0.7, the initial security properties that the java.security.Security class loads are now accessible in the new JFR event, jdk.InitialSecurityProperty.

The jdk.InitialSecurityProperty event contains the following two fields:

By using this new event and the existing jdk.SecurityPropertyModification event, you can now monitor security properties throughout their lifecycle.

In this release, you can also print initial security properties to the standard error output stream when the -Djava.security.debug=properties property is passed to the Java virtual machine.

See JDK-8292177 (JDK Bug System).

Error thrown if java.security file fails to load

In previous releases, if OpenJDK could not load the java.security file, a hard-coded set of security properties was used. This set of properties was not fully maintained and it was unclear to the user when they were being used.

Now, with OpenJDK 17.0.7, if OpenJDK cannot load the java.security file, OpenJDK displays an InternalError error message.

See JDK-8155246 (JDK Bug System).

listRoots method returns all available drives on Windows

In previous releases, the java.io.File.listRoots() method on Windows systems filtered out any disk drives that were not accessible or did not have media loaded. However, this filtering led to observable performance issues.

With release OpenJDK 17.0.7, the listRoots method returns all available disk drives unfiltered.

See JDK-8208077 (JDK Bug System).

Enhanced Swing platform support

In earlier releases of OpenJDK, HTML object tags rendered embedded in Swing HTML components. With release OpenJDK 17.0.7, rendering only occurs if you set the new system property swing.html.object to true. By default, the swing.html.object property is set to false.

JDK bug system reference ID: JDK-8296832.

Revised on 2024-05-03 15:37:24 UTC