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Eclipse and Java 9
Manoj & SarikaIBM
Agenda
Introduction to Java 9 feature JRT
Eclipse JDT Core support
Eclipse JDT Debug Support
Demo
Modular Images
Modules
List of modules in release file
rt.jar removed
Implementation specific internal format
Jimages
How is JDT Core affected?
IDEs and other kinds of development tools require the ability to enumerate the class and resource files stored in a run-time image, and to read their contents. Today they often do this directly by opening and reading rt.jar and similar files. This will, of course, not be possible with a modular image.
jrt:/[$MODULE[/$PATH]]
jrt:/$MODULE/$PATH refers to the specific class or resource file named $PATH within the given $MODULE.
jrt:/$MODULE refers to all of the class and resource files in the module $MODULE.
jrt:/ refers to the entire collection of class and resource files stored in the current run-time image.
Enumeration
Enumeration and reading of classes is provided by a built-in filesystem provider.
A copy of this filesystem provider suitable for use on JDK 8 will be placed in the root directory of JDK 9 run-time images, in a file named jrt-fs.jar.
Eclipse - Java 9 Package Explorer
Eclipse Java 9 Package Explorer -2
Eclipse Java 9 Search plus PE
JDT Details & Future Work
Parallel branch BETA_Java9
MODULES/PACKAGES ongoing.
Java Model enhancements under discussion
JEP availability other Java 9 features
Performance/Opt at a stable state
Java 9 Execution Environment
New run-time image structure
Removal of the endorsement-standards override and the extension mechanism
JDT Debug
Thank You
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8/29/15
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8/29/15