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Eclipse Scout SDK and Java 8? [message #1397419]

Wed, 09 July 2014 17:54

Jeremie Bresson

Messages: 1252
Registered: October 2011

Senior Member

Does the Luna EPP Package "Eclipse for Scout Developers" has a problem with Java 8?

I am running the IDE with a Java 8 JRE.

eclipse-scout-luna-R
win32.x86_64

java.runtime.version=1.8.0_05-b13
java.version=1.8.0_05

When I create a new Scout Project, each MANIFEST.MF contains:

Bundle-RequiredExecutionEnvironment: JavaSE-1.8

When I try to validate the product files (for example the server-dev.product), I get validation errors.

<the app>.server/products/development/<app alias>-server-dev.product

Of course if I start the application I get the same errors:

!ENTRY org.eclipse.osgi 2 0 2014-07-09 19:36:41.742
!MESSAGE One or more bundles are not resolved because the following root constraints are not resolved:
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-09 19:36:41.750
!MESSAGE Bundle update@<workspace path>/<the app>.server/ was not resolved.
!SUBENTRY 2 <the app>.server 2 0 2014-07-09 19:36:41.750
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(&(osgi.ee=JavaSE)(version=1.8))".
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-09 19:36:41.751
!MESSAGE Bundle update@<workspace path>/<the app>.shared/ was not resolved.
!SUBENTRY 2 <the aoo>.shared 2 0 2014-07-09 19:36:41.751
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(&(osgi.ee=JavaSE)(version=1.8))".

I checked everything:
* Preferences > Java > Installed JREs
* Preferences > Java > Installed JREs > Excution Environments
* Preferences > Java > Compiler: JDK Compliance Compiler compliance level

Everything seems to be OK (Java 8 or 1.8 everywhere)

The workaround is to replace:

Bundle-RequiredExecutionEnvironment: JavaSE-1.8

With:

Bundle-RequiredExecutionEnvironment: JavaSE-1.7

in all MANIFEST.MF files.

Is someone experiencing the same problem?

What is the solution to this problem? (I am aware that the problem might be somewhere else in Eclipse IDE - Maybe PDE?)

.

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Re: Eclipse Scout SDK and Java 8? [message #1397461 is a reply to message #1397419]

Wed, 09 July 2014 19:18

Santo Mota

Messages: 63
Registered: July 2013

Member

Hi Jeremie Bresson.
I was suffering a big problem with java 8, ascout and tomcat,
see bellow
https://www.eclipse.org/forums/index.php/mv/msg/788694/1394598/#msg_1394598

The problem it was the java 8 version.

For now, I encourage you to use sdk 1.7 that it working well.

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Re: Eclipse Scout SDK and Java 8? [message #1397850 is a reply to message #1397461]

Thu, 10 July 2014 08:39

Jeremie Bresson

Messages: 1252
Registered: October 2011

Senior Member

To reproduce the problem, a very important point is to select "New Eclipse Juno Target (3.8 recommended)" as Eclipse Platform.

I think the problem is somewhere there.

@Santo Mota: thanks for your pointer and your video.

.

[Updated on: Thu, 10 July 2014 08:40]

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Re: Eclipse Scout SDK and Java 8? [message #1397965 is a reply to message #1397850]

Thu, 10 July 2014 12:08

Matthias Villiger

Messages: 232
Registered: September 2011

Senior Member

This is because the 1.8 execution environment is only available on equinox luna. As Eclipse 3.8 was a Juno release, this support is not available there.

In other words: the java 1.8 support only works with an eclipse luna target.

I created Bug 439333 to fix this in the scout SDK.

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