Re: [tycho-user] Cannot use JavaSE1.8 from test plugin

["Sievers, Jan" <jan.sievers@xxxxxxx>]

I think you can simply keep the JavaSE-1.8 BREE in the manifest and
configure

target-platform-configuration with
<executionEnvironment>JavaSE-1.6</executionEnvironment>

as well as tycho-compiler-plugin source and target [1] set to 1.8 in
pom.xml (or <useProjectSettings>true</useProjectSettings>).

to work around the bug mentioned. No need to change .classpath which is a
derived file I think.

The point is if you really want to use JavaSE-1.8 at runtime and compile
time, we should restrict the workaround to only affect Tycho/p2 dependency
resolution via pom.xml as this is where the bug is.

Jan

[1] 
https://eclipse.org/tycho/sitedocs/tycho-compiler-plugin/compile-mojo.html#
source


On 11/08/15 12:00, "tycho-user-bounces@xxxxxxxxxxx on behalf of Robert
Kiss" <tycho-user-bounces@xxxxxxxxxxx on behalf of robert.kiss@xxxxxxxxx>
wrote:

>Thank you Jan for your hint.
>
>
>I manage to make it work with a quite strange setup. For reference here
>is what I did:
>
>
>Inside my test plugin I have:
>
> - .classpath uses JavaSE-1.8 so from IDE I'm able to write and compile
>Java 8 code
>
> - MANIFEST.MF specify as BREE JavaSE-1.6 so Tycho will allow to install
>the plugin in a 1.6 compliant environment. Because this is a test plugin
>and we don't deliver this plugin this setting, albeit wrong, is
>acceptable for us.
>
>
>
>Tycho compiler is configured with
><useProjectSettings>true</useProjectSettings>. I assume if that would be
>false I would need also an jre.compilation.profile=JavaSE-1.8 inside the
>build.properties of my plugin.
>
>
>
>Inside the pom.xml we configure target-platform-configuration with
><executionEnvironment>JavaSE-1.6</executionEnvironment>. Of course Tycho
>is executed with JavaSE-1.8
>
>
>
>Regards
>
>Robert
>
>
>
>
>
>
>
>
>
>On Tue, Aug 11, 2015 at 11:55 AM, Sievers, Jan
><jan.sievers@xxxxxxx> wrote:
>
>the p2 product publisher hardcodes a dependency to bogus IU a.jre.javase
>[1.6.0]
>
>https://bugs.eclipse.org/bugs/show_bug.cgi?id=387701
>
>
>To make it happy, you could try
>
>- using JavaSE-1.6 as BREE in the test bundle (as you mentioned)
>- overriding the execution environment of the test bundle using one of the
>methods in
>
>https://wiki.eclipse.org/Tycho/Execution_Environments#Execution_environmen
>t
>_configuration
>
>
>Regards
>Jan
>
>
>On 11/08/15 10:24, "tycho-user-bounces@xxxxxxxxxxx on behalf of Robert
>Kiss" <tycho-user-bounces@xxxxxxxxxxx on behalf of
>robert.kiss@xxxxxxxxx>
>wrote:
>
>>Hello all
>>
>>
>>I have a test plugin which contain "UI system tests" so as a result it
>>requires the entire product to run the tests.
>>
>>The pom.xml have the following content (partially)
>>
>>
>>    <groupId>com.sample</groupId>
>>    <artifactId>com.sample.systests</artifactId>
>>    <packaging>eclipse-test-plugin</packaging>
>>
>><build>
>>            <plugin>
>>                <groupId>org.eclipse.tycho</groupId>
>>                <artifactId>target-platform-configuration</artifactId>
>>                <version>${tycho.version}</version>
>>                <configuration>
>>                    <dependency-resolution>
>>                        <extraRequirements>
>>                            <!-- add dependency to product IU under test
>>-->
>>                            <requirement>
>>                                <type>p2-installable-unit</type>
>>                                <id>MyProduct</id>
>>                                <versionRange>0.0.0</versionRange>
>>                            </requirement>
>>                        </extraRequirements>
>>                    </dependency-resolution>
>>                </configuration>
>>            </plugin>
>>        </plugins>
>>    </build>
>>
>>
>>Tests run as expected when JavaSE1.6 is referenced from plugin's
>>MANIFEST.MF and .classpath however when JavaSE 1.7 or 1.8 is used the
>>build fails with the following message:
>>
>>[INFO] Installing IUs [com.movidius.systests,
>>org.eclipse.tycho.surefire.osgibooter, org.eclipse.tycho.surefire.junit4,
>>MyProduct] to
>>C:\WS\trunk\trunkEclipse\systests\plugins\com.sample.systests\target\work
>>Installing com.sample.systests 1.0.0.201508110757.
>>Installing org.eclipse.tycho.surefire.osgibooter 0.23.1.
>>Installing org.eclipse.tycho.surefire.junit4 0.23.1.
>>Installing MyProduct 1.0.0.201508110757.
>>Installation failed.
>>Cannot complete the install because one or more required items could not
>>be found.
>> Software being installed: MyProductProduct 1.0.0.201508110757 (MyProduct
>>1.0.0.201508110757)
>> Missing requirement: MyProductProduct 1.0.0.201508110757 (MyProduct
>>1.0.0.201508110757) requires 'a.jre.javase [1.6.0]' but it could not be
>>found
>>
>>
>>I have other test plugins which does not use
>><type>p2-installable-unit</type> and are marked with JavaSE1.8 and they
>>run correctly.
>>
>>
>>My product definition have the following content:
>>
>>      <feature id="org.eclipse.rcp"/>
>>      <feature id="org.eclipse.rcp.configuration"/>
>>      <feature id="org.eclipse.platform"/>
>>      <feature id="org.eclipse.equinox.p2.user.ui"/>
>>....
>>
>>
>>I suspect a bug in Tycho but maybe not...
>>
>>Any advice?
>>
>>
>>Regards
>>
>>Robert Kiss
>>
>>
>>
>>
>>
>>
>>
>
>
>
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