JDK8 no longer required to develop Graal

[Doug Simon]

> On 13 Aug 2018, at 15:59, Stefan Marr <java at stefan-marr.de> wrote:
> 
> Hi Doug,
> Hi Christian:
> 
> If I am not mistaken, Truffle also still wants a JDK 8.
> Is this requirement going to be lifted, too?

It should have been lifted as part of this change. Try `mx --java-home /path/to/jdk-11 gate` to confirm.

-Doug

> 
>> On 13 Aug 2018, at 13:23, Doug Simon <doug.simon at oracle.com> wrote:
>> 
>> Developing Graal has always required a JDK8 to be present in either JAVA_HOME or EXTRA_JAVA_HOMES. Please see http://mail.openjdk.java.net/pipermail/graal-dev/2018-June/005413.html for background on this.
>> 
>> I've recently pushed changes to mx[1] and Graal[2] that removes this requirement. That is, you should now be able to develop Graal with only a JDK11 in JAVA_HOME. I have updated https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_oracle_graal_blob_master_compiler_README.md-23building-2Dgraal&d=DwIFAg&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=BmNY5KuefACTr_P43s8fXOXgNDkDiqlviyafeiVaP18&m=2diesXR4Jx9690v_KHWWBRFfK0TM3xLphvbeLhHLIdE&s=l2feHpKTQJ3KQn7Em2MJkA2IR-Wjx5WF6p3a0smcR34&e= to reflect this.
>> 
>> If you run into any problems developing Graal with only a JDK 11, please open an issue at https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_oracle_graal_issues&d=DwIFAg&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=BmNY5KuefACTr_P43s8fXOXgNDkDiqlviyafeiVaP18&m=2diesXR4Jx9690v_KHWWBRFfK0TM3xLphvbeLhHLIdE&s=mfqB-VgzV4ejlIy4cAvs_SJYru73RofbGFJfhZytbqQ&e= or send a message to graal-dev at openjdk.java.net.
>> 
>> -Doug
>> 
>> [1] https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_graalvm_mx_commit_c9f873aa979b2a724e7e213fd1e0d4ce7131b87f&d=DwIFAg&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=BmNY5KuefACTr_P43s8fXOXgNDkDiqlviyafeiVaP18&m=2diesXR4Jx9690v_KHWWBRFfK0TM3xLphvbeLhHLIdE&s=9s2nl428q5C6p31YcRRcBZWPC4r31wwQn7-TznODd0k&e=
>> [2] https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_oracle_graal_commit_a4070ec3d1b16d49f42694b3f0a46a39010b445c&d=DwIFAg&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=BmNY5KuefACTr_P43s8fXOXgNDkDiqlviyafeiVaP18&m=2diesXR4Jx9690v_KHWWBRFfK0TM3xLphvbeLhHLIdE&s=wdXGxW80gruac09E2_QHXi3qrrITLkUlcCitnrbfsg4&e=
> 
> -- 
> Stefan Marr
> School of Computing, University of Kent
> https://urldefense.proofpoint.com/v2/url?u=http-3A__stefan-2Dmarr.de_research_&d=DwIFAg&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=BmNY5KuefACTr_P43s8fXOXgNDkDiqlviyafeiVaP18&m=2diesXR4Jx9690v_KHWWBRFfK0TM3xLphvbeLhHLIdE&s=AAJT4JbmS3L8nQ5Ra3UC2MZuYnhOLk74Ux74J86T73U&e=
> 
>