IcedTea-Web and OpenJDK

I posted 3 patches today

The first patch is for OpenJDK 9. It creates a hole that allows alternative plugin implementations to plug into (pardon the pun)  OpenJDK and make use of existing plugin-specific classes in OpenJDK.

The second and third patches are for IcedTea-Web. They allow IcedTea-Web to (progressively) build against OpenJDK8 and OpenJDK9.

What does this mean? Soon we might actually be able to build and run IcedTea-Web against OpenJDK. Yes, an Open Source/Free Software plugin running on top of OpenJDK (without any custom patches). Of course, a lot of this is still up in the air. The OpenJDK folks might not accept the patch, though I am hopeful they will – it’s very small and conservative.

Fun times ahead!

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What IcedTea-Web 1.1 means for you

A number of changes occurred between IcedTea-Web 1.0 and IcedTea-Web 1.1. If you are a packager or a developer here are some things you need to know.

Are you a packager?
IcedTea-Web 1.1 can be installed into a regular prefix (/usr/ or /usr/local/ or anything else). Unlike IcedTea-Web 1.0, you do not need to install IcedTea-Web into a JDK or JRE directory. IcedTea-Web uses a JDK to build itself (specified using --with-jdk-home). IcedTea-Web will use the JDK it was compiled against to run. The launchers (javaws and itweb-settings) are now shell scripts and can be customized as needed.

Are you a developer using applets or java web start?
IcedTea-Web 1.1 provides netscape.javascript.* and javax.jnlp.* classes that applets and web start applications use. However, unlike icedtea-web < 1.1 (or older releases of icedtea6) the jars that provide these classes will not be automatically be picked up by the JDK. netscape.javascript.* classes are included in IcedTea-Web’s plugin.jar. javax.jnlp.* classes are included in IcedTea-Web’s netx.jar. Please add these classes to your classpath when building.