Re: [tycho-user] Support for Java 1.8

[Doug Schaefer <dschaefer@xxxxxxx>]

Very cool. Thanks Igor! I’ll give a try over the next couple of days and
report back on my experiences.

Doug.

On 1/19/2014, 7:48 PM, "Igor Fedorenko" <igor@xxxxxxxxxxxxxx> wrote:

>Tycho parent pom has pretty verbose explanation how to do this [1], but
>here is a shorter version
>
>
>Assuming you are on OSX or Linux, have 'mvn' command on PATH and eclipse
>with java8 support is in /tmp/eclipse, the following snippet will
>install JDT compiler and APT compiler to your local maven repository
>(obviously replace JDT*VERSION with actual version your have)
>
>
>     PLUGINS=/tmp/eclipse/plugins
>
>     CMD="mvn install:install-file -Dpackaging=jar"
>
>     JDT_VERSION=3.9.2.v20140119-0104_BETA_JAVA8
>     JDT_APT_VERSION=1.0.600.v20140119-0104_BETA_JAVA8
>
>     $CMD -DgroupId=org.eclipse.tycho \
>       -DartifactId=org.eclipse.jdt.core \
>       -Dversion=$JDT_VERSION \
>       -Dfile=$PLUGINS/org.eclipse.jdt.core_$JDT_VERSION.jar
>
>     $CMD -DgroupId=org.eclipse.tycho \
>       -DartifactId=org.eclipse.jdt.compiler.apt \
>       -Dversion=$JDT_APT_VERSION \
>       -Dfile=$PLUGINS/org.eclipse.jdt.compiler.apt_$JDT_APT_VERSION.jar
>
>
>In your Tycho project, add the following xml snippet to
>build/pluginManagement/plugins sections (again, make sure version
>matches what you have)
>
>
>     <plugin>
>       <groupId>org.eclipse.tycho</groupId>
>       <artifactId>tycho-compiler-plugin</artifactId>
>       <version>${tycho-version}</version>
>       <dependencies>
>         <dependency>
>           <groupId>org.eclipse.tycho</groupId>
>           <artifactId>org.eclipse.jdt.core</artifactId>
>           <version>3.9.2.v20140119-0104_BETA_JAVA8</version>
>         </dependency>
>         <dependency>
>           <groupId>org.eclipse.tycho</groupId>
>           <artifactId>org.eclipse.jdt.compiler.apt</artifactId>
>           <version>1.0.600.v20140119-0104_BETA_JAVA8</version>
>         </dependency>
>       </dependencies>
>     </plugin>
>
>
>
>Then you will likely need to fix your code to actually compile under
>java8. For example, m2e gave me tons of errors about
>Comparator.thenComparingDouble not implemented... almost looks like a
>bug in jdt compiler ;-)
>
>
>[1] http://git.eclipse.org/c/tycho/org.eclipse.tycho.git/tree/pom.xml#n92
>
>
>--
>Regards,
>Igor
>
>
>On 1/19/2014, 15:48, Doug Schaefer wrote:
>> I think we¹re getting close to needing this. Igor can you provide
>> instructions how we can do this?
>>
>> Thanks!
>> Doug.
>>
>> On 12/30/2013, 3:15 PM, "Igor Fedorenko" <igor@xxxxxxxxxxxxxx> wrote:
>>
>>> JDT compiler is a regular Maven dependency of tycho-compiler-plugin.
>>> Assuming JDT compiler API has changed, you can use newer/different
>>> compiler version without changing Tycho. You'll need to deploy/install
>>> new JDT compiler to a maven repository yourself, however. I can show
>>>how
>>> to do this, if you want.
>>>
>>> --
>>> Regards,
>>> Igor
>>>
>>> On 12/30/2013, 11:45, Doug Schaefer wrote:
>>>> Hey gang,
>>>>
>>>> We¹ve started work on porting Eclipse to JavaFX and want to use the
>>>>1.8
>>>> early release bits to work against to give us the latest Java 1.8.
>>>> That¹ll require an update to the JDT compiler that tycho is using.
>>>>Does
>>>> anyone have that working or working on it?
>>>>
>>>> Thanks,
>>>> Doug.
>>>>
>>>>
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>>>>
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>>
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