Transition Graal to Java 8

[Deneau, Tom]

OK now have a java8 enabled version of eclipse and ecj.jar
   eclipse-SDK-I20140402-0100-linux-gtk-x86_64.tar.gz

I am getting the following kinds of errors from mx eclipseinit -e /path/to/eclipse

incorrect classpath: /home/tom/java/oracle/jdk7-u51/jre/classes
Compiling Java sources for com.oracle.truffle.api.dsl with JDT...
...
incorrect classpath: /home/tom/java/oracle/jdk1.8.0/jre/classes
Compiling Java sources for com.oracle.graal.api.replacements with JDT...
...

-- Tom


> -----Original Message-----
> From: Doug Simon [mailto:doug.simon at oracle.com]
> Sent: Thursday, April 03, 2014 1:31 AM
> To: Deneau, Tom
> Cc: graal-dev at openjdk.java.net
> Subject: Re: Transition Graal to Java 8
> 
> Gilles is right. A Java 8 enabled version of ecj.jar is mentioned in
> step 4 of the instructions below.
> 
> -Doug
> 
> On Apr 3, 2014, at 7:51 AM, Gilles Duboscq <duboscq at ssw.jku.at> wrote:
> 
> > Yes, it should work.
> > This usually means that the eclipse/ecj you are using does not have
> Java 8 support.
> >
> > -Gilles
> >
> > On 3 Apr 2014 00:15, "Tom Deneau" <tom.deneau at amd.com> wrote:
> > Also, should the following still work?
> >
> > mx build --jdt mx/ecj.jar --jdt-warning-as-error
> >
> > I get
> > Compiling Java sources for com.oracle.graal.test with JDT...
> > Unrecognized option : -1.8
> >
> > -- Tom
> >
> > > -----Original Message-----
> > > From: graal-dev [mailto:graal-dev-bounces at openjdk.java.net] On
> Behalf Of
> > > Deneau, Tom
> > > Sent: Wednesday, April 02, 2014 5:02 PM
> > > To: Doug Simon; graal-dev at openjdk.java.net
> > > Subject: RE: Transition Graal to Java 8
> > >
> > > When I try mx eclipseformat -e /path/to/eclipse-4.4
> > >
> > > I get a lot of messages like:
> > >    The Eclipse formatter failed to format xxx.java. Skip the file.
> > >
> > > Is this still supposed to work?
> > >
> > > -- Tom
> > >
> > > > -----Original Message-----
> > > > From: graal-dev [mailto:graal-dev-bounces at openjdk.java.net] On
> Behalf
> > > Of
> > > > Doug Simon
> > > > Sent: Wednesday, March 26, 2014 5:53 PM
> > > > To: graal-dev at openjdk.java.net
> > > > Subject: Transition Graal to Java 8
> > > >
> > > > The changeset[1] has just gone through that transitions the non-
> pure-
> > > > Truffle projects in the Graal repository to Java 1.8.
> > > >
> > > > The recommended steps for transitioning a local workspace are:
> > > >
> > > > 1. Ensure Eclipse is running on a 1.8 VM by editing eclipse.ini in
> the
> > > > Eclipse installation directory
> (Eclipse.app/Contents/MacOS/eclipse.ini
> > > > on Mac) to include these lines:
> > > >
> > > > -vm
> > > > /path/to/jdk1.8.0/bin/java
> > > >
> > > > or on a Mac:
> > > >
> > > > -vm
> > > >
> > >
> /Library/Java/JavaVirtualMachines/jdk1.8.0.jdk/Contents/Home/jre/lib/ser
> > > > ver/libjvm.dylib
> > > >
> > > >
> > > > 2. Ensure you are using an Eclipse that has 1.8 support. This is
> one
> > > of
> > > > the following:
> > > >  - Luna (4.4), version I20140318-0830 or later
> > > >  - Kepler (4.3.2) with the patch at
> > > > http://download.eclipse.org/eclipse/updates/4.3-P-builds
> installed.
> > > >    Only select "Eclipse JDT (Java Development Tools) Patch with
> Java 8
> > > > support (for Kepler SR2)" unless
> > > >    you already have PDE installed.
> > > > 3. Configure the JavaSE-1.7 and JavaSE-1.8 Execution Environments
> > > > appropriately in Eclipse (Preferences -> Java -> Installed JREs ->
> > > > Execution Environments) 4. If you want to build with ECJ, then
> > > download
> > > > it[2] to mx/ecj.jar 5. Update mx/env so that JAVA_HOME points to
> the
> > > 1.8
> > > > JDK and add a property EXTRA_JAVA_HOMES to point to a 1.7 JDK.
> > > >    For example:
> > > >
> > > >
> > > >
> JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0.jdk/Contents/Home
> > > >
> > > >
> > >
> EXTRA_JAVA_HOMES=/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Conte
> > > > nts/Home
> > > >
> > > > 6. Do a complete clean (just to be sure):
> > > >
> > > > mx clean
> > > > mx ideclean
> > > > mx eclipseinit
> > > >
> > > > 6. Remove and re-add all projects in Eclipse.
> > > >
> > > > Note that it is not yet quite open season on using Java 8 language
> > > > features as Checkstyle does not yet support Java 8. In all
> likelihood
> > > we
> > > > will replace Checkstyle with error-prone[3]. Either way,
> Checkstyle
> > > will
> > > > be pulled out soon which removes the last road block to adopting
> all
> > > of
> > > > Java 8.
> > > >
> > > > -Doug
> > > >
> > > > [1] http://hg.openjdk.java.net/graal/graal/rev/a6c1c3eb20c4
> > > > [2]
> http://download.eclipse.org/eclipse/downloads/drops4/P20140317-
> > > > 1600/download.php?dropFile=ecj-P20140317-1600.jar
> > > > [3] https://code.google.com/p/error-prone/
> > >
> >
> >
>