Add support for Java 17

[eric-milles]

https://www.oracle.com/news/announcement/oracle-releases-java-17-2021-09-14

https://marketplace.eclipse.org/content/java-17-support-eclipse-2021-09-421

https://www.eclipse.org/eclipse/news/4.21/jdt.php#Java_17

[DJViking]

Currently it is not possible to install the Eclipse Patch for Java 17 Support when using this Groovy Development Tools.

[eric-milles]

You can use Eclipse 4.22 which has Java 17 support integrated.

[DJViking]

Eclipse 2021-12 (4.22) has not yet been released.
Eclipse 2021-09 (4.21), the latest Eclipse has not Java 17 support. You could install the Java 17 Patch to get Java 17 support on it.

[DJViking]

I tried using the JDT Patch for Groovy-Eclipse on Eclipse 4.21. It did not work.

[sbrannen]

Eclipse 2021-09 (4.21), the latest Eclipse has not Java 17 support. You could install the Java 17 Patch to get Java 17 support on it.

I'm using Eclipse 2021-09 (4.21) and have installed the Java 17 Support for Eclipse 2021-09 (4.21).

I then installed the Groovy Development Tools, and the Java 17 runtime is removed from Eclipse, breaking projects imported into Eclipse that were already working with Java 17 and Eclipse 2021-09.

Is there any way to get the Groovy Development Tools working with Eclipse 2021-09 and Java 17?