GraalVM issues to track for 1.2 / 19.3

[gsmet]

• [native-image] NPE in BootLoader.hasClassPath() during image startup with JDK 11 oracle/graal#1966 - NPE in BootLoader.hasClassPath() - worked around with substitutions - fixed in 19.3.0.2, workaround reverted here: Update GraalVM to 19.3.0.2 #6364
• [native-image] UserException thrown when Version is used from a substitution class  oracle/graal#1889 - unusable API Version - we decided to not use this for now
• DynamicProxySupport is not thread safe oracle/graal#1927 - DynamicProxySupport is not thread safe - fixed in 19.3.0.2
• [native-image] NullPointerException during security services registration oracle/graal#1883 - NullPointerException during security services registration - worked around
• BootLoader.loadClassOrNull() NPE during native tests execution with JDK 11 #6127 - BootLoader.loadClassOrNull() NPE - worked around with substitutions - fixed in 19.3.0.2, workaround reverted here: Update GraalVM to 19.3.0.2 #6364
• Neo4j doesn't work in native mode anymore #6115 native-image -H:Optimize=2 leads to wrong execution / code. oracle/graal#1995 - Neo4j doesn't work in native mode anymore - fixed in 19.3.0.2
• Increase in native image RSS after upgrade to ce 19.3.0 oracle/graal#1984 RSS regression with 1.1.0.CR1 and GraalVM 19.3.0 #6136 - RSS regression with 1.1.0.CR1 and GraalVM 19.3.0
• [native-image] undefined reference to `VerifyFixClassname' oracle/graal#1971 (comment) - Camel Quarkus beans IT not working - still reproducible with 19.3.0.2

[gsmet]

/cc @gwenneg

[thomaswue]

Issues oracle/graal#1995 and oracle/graal#1927 are mentioned as fixed in 19.3.0.2 release notes. Other issues seem closed except for oracle/graal#1984 (where a JDK backport fix into 8u is proposed by @adinn). Let us know if there are other issues to consider or issues to reopen @emmanuelbernard.

[machi1990]

Issues oracle/graal#1995 and oracle/graal#1927 are mentioned as fixed in 19.3.0.2 release notes.

I have opened a draft PR #6364 to update the Graal version and add neo4j IT tests in CI.
/cc @gsmet @gwenneg @michael-simons

[emmanuelbernard]

Thanks @thomaswue Looking at oracle/graal#1984, I see the following actions:

• @johnaohara to double check the JDK 11 memory usage. In his tests, JDK 11 was having a similar "extra" memory usage as JDK 8 which does not match the reading of the code and proposed backport of the patch from 11 to 8.
  • if the extra memory for JDK 11 is confirmed, then we are back to square 1 having to find a short term solution for SubstrateVM
• @adinn do you know when the JDK 8 backport would be in? 8u242 or 8u252? Considering https://wiki.openjdk.java.net/display/jdk8u/Main dates and that I don't see the patch on http://hg.openjdk.java.net/jdk8u/jdk8u/ I imagine it to be more 8u252 which puts it as GA April 15th

I see the following branches for our future

• a. JDK 11 is reasonable in memory usage and we baseline Quarkus on 11 dropping Java 8 support. Quarkus 1.2 adopts GraalVM 19.3.
• b. JDK 11 is reasonable in memory usage, we recommend people to use Graal 19.3 for JDK 11 and 19.2 for JDK 8. AFAIK, this is not trivial and might not be possible because of some graalvm package name changes that happened between 19.2 and 19.3 CC @gsmet @gwenneg. Quarkus 1.2 adopts GraalVM 19.3.
• c. Quarkus does not drop JDK 8 support and the double support of GraalVM 19.2/19.3 is not possible => Quarkus waits for April 15th+ to upgrade to GraalVM 19.3
• d. JDK 11 shows the same > 20MB memory usage for the CRUD app. Quarkus waits for a solution on GraalVM 19.3+ to reach back 20MB memory usage for the CRUD app.

Am I missing a future?
@n1hility do you see any alternative?

[adinn]

@emmanuelbernard jdk8u is currently frozen pending release of 8u242. I prepared and successfully tested the backport and posted an RFR today asking to push to the jdk8u-dev tree. So, it ought to be available in u252 released in early April.

[gsmet]

@thomaswue so to keep you in the loop, most issues are fixed except:

• the RSS usage regression which is blocking for us, see @adinn and @emmanuelbernard 's comments above
• Camel Quarkus ITs failing with /usr/bin/ld: /opt/jprt/T/P1/225159.buildslave/s/jdk/src/share/native/java/lang/reflect/Proxy.c:97: undefined reference to VerifyFixClassname'` - see [native-image] undefined reference to `VerifyFixClassname' oracle/graal#1971 (comment) where I posted a (hopefully straightforward) way to reproduce it

Thanks.