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The Groovy-Eclipse team is proud to announce the release of Groovy-Eclipse 2.5.2. There are many new features available with this release, including Eclipse 3.7.1 support, Java 7 support, and Groovy 1.8.2 support

You can use the following update site to install this release:

Groovy-Eclipse update site for Eclipse 3.7 and 3.6


If you want the Groovy 1.8 compiler, you must explicitly include it by checking the "Extra compilers" category.

And a zipped version of the update site is available at:

Zipped Groovy-Eclipse update site for Eclipse 3.7 and 3.6


For Eclipse 3.7:

For Eclipse 3.6:

You can install from the zip by pointing your Eclipse update manager to the downloaded zip file and following the installation instructions.


Compiler switching through command line argument

It is now possible to use command line arguments to specify a compiler level for Groovy-Eclipse. You can add the -groovy.compiler.level argument to the launch command to control which compiler level is started.


Use -groovy.compiler.level 18 to specify Groovy 1.8
Use -groovy.compiler.level 17 to specify Groovy 1.7

For example, to start Eclipse with a 1.7 compiler:

Use '18' to specify the 1.8 compiler.

See Compiler Switching within Groovy-Eclipse and STS-1844 for more information.

Inferencing improvements

Better DGM inferencing

Default Groovy Methods now have better inferencing inside of associated closure blocks. For example, the unique DGM method now supports inferencing of the parameter on its closure:

In addition to unique, all methods inside the DefaultGroovyMethods class now support inferencing on parameters in closures where appropriate. A complete list is available in GRECLIPSE-1143.

Other implicit category classes

Support for the implicit category classes DateGroovyMethods, SwingGroovyMethods, XmlGroovyMethods, and ProcessGroovyMethods.
These classes are now handled just like DefaultGroovyMethods in terms of content assist, hovers, and navigation.

For example:



For more information, see GRECLIPSE-1131, GRECLIPSE-1143, GRECLIPSE-1145, GRECLIPSE-1153, GRECLIPSE-1154 and GRECLIPSE-1155.

Multiple assignment statements

The types of variables assigned in multi-assignment statements are now discovered during inferencing. For example, when assigning a list to multiple variables, the static type of the list elements will be assigned to each variable:

Also, when a method returns a list or array, the type parameter or component type is used as the type of assigned variabled:

For more information, see GRECLIPSE-1140 and GRECLIPSE-1136.

Match operator inferencing

Match operator expressions now support inferencing:

For more information, see GRECLIPSE-1159.

Content assist improvements

Method context information

Groovy-Eclipse now follows the JDT convention of displaying context information for methods when invoking content assist inside of a method call and there is no prefix. For example, when invoking content assist just after an opening paren, you are only shown a list of known ways to invoke the target method:

Selecting one of the proposals will show that method's information in tooltips above the caret location:

Similarly, invoking content assist after a comma will show context information as well:

For more information, see GRECLIPSE-674.

Content assist now recognizes closure parameters

When a field has a closure for an initializer, content assist will now reflect this and show method proposal variants for the field:

For more information, see GRECLIPSE-1139.

Editing support for Groovy files outside of the build path

Scripts that are not placed on the build path now provide many of the standard editing features that is used by scripts on the build path, such as content assist, type inferencing, and mark occurrences. The classpath for the script is assumed to be the same build path as the one for the rest of the project.

Note that missing import references will not be reported, and references in scripts will not show in search results, nor will refactoring work in these files.

Fix import statements after move/copy

Import statements are now properly cleaned up after a move or copy of a Groovy file to a new location. See GRECLIPSE-682 for more information.

More precise searching for overloaded methods

The number of parameters of method declarations are now used to more precisely determine the actual declaration of a method reference:

See GRECLIPSE-1138 for more information.

More precise rename refactoring of overloaded methods

This new technique for method searching is used to ensure that overloaded methods do not interfere with rename refactoring:


Groovy-Eclipse 2.5.2 includes Groovy 1.7.10 by default. Groovy 1.8.2 can be optionally installed. This version of Groovy-Eclipse is recommended to be installed on STS 2.7.2, 2.8.0.M2, Eclipse 3.7.0, 3.7.1, 3.6.0, 3.6.1, or 3.6.2. There are different update sites for Groovy-Eclipse targeting Eclipse 3.6 and 3.7 (see above).

Bug fixes

We have fixed over 100 bugs for this release. See the details on our issue tracker.

What's next?

We appreciate all community support and feedback. If you wish to join the discussion about Groovy-Eclipse then please sign up for the mailing list. For any issues you have (or enhancements you would like to see), please raise them in our issue tracker. If there is an existing bug fix or enhancement that you require are not seeing any movement on, please make some noise on it (and get your friends to do the same). We respond to community feedback, and we can make the most improvements to Groovy-Eclipse when we hear directly from the community. So, please speak up!

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