Error - Cannot read JVMCI version from java.vm.version property

[Deepali Patel]

Hello,

I am using a Ubuntu 16.04.2 x86_64 system.

The java version is:
openjdk version "1.8.0_121"
OpenJDK Runtime Environment (build 1.8.0_121-8u121-b13-0ubuntu1.16.04.2-b13)
OpenJDK 64-Bit Server VM (build 25.121-b13, mixed mode)

I used the steps in the section https://github.com/graalvm/graal-core#building-jvmci-jdk8 to build JVMCI JDK8. The build is successful, the last few lines of output is like:
                make: Leaving directory '/pathto/Graal/graal-jvmci-8/make'
Compiling jdk.vm.ci.hotspot.amd64 with javac-daemon... [dependency jdk.vm.ci.amd64 updated]
Compiling jdk.vm.ci.hotspot.sparc with javac-daemon... [dependency jdk.vm.ci.sparc updated]
Compiling jdk.vm.ci.hotspot.aarch64 with javac-daemon... [dependency jdk.vm.ci.aarch64 updated]
Archiving JVMCI_TEST... [dependency jdk.vm.ci.runtime.test updated]
Archiving JVM_PRODUCT_SERVER... [dependency hotspot updated]
Archiving JVMCI_HOTSPOT... [dependency jdk.vm.ci.hotspot.aarch64 updated]

And I update JAVA_HOME using
export JAVA_HOME=$(mx --java-home /usr/lib/jvm/java-8-openjdk-amd64 jdkhome)

echo $JAVA_HOME shows:
/pathto/Graal/graal-jvmci-8/jdk1.8.0_121/product

Next I checkout graal-core and execute mx on it.

The error seen is:
The VM does not support the minimum JVMCI API version required by Graal.
Cannot read JVMCI version from java.vm.version property: 25.121-b13.
Set the JVMCI_VERSION_CHECK environment variable to "ignore" to suppress this error or to "warn" to emit a warning and continue execution.
Currently used Java home directory is /usr/lib/jvm/java-8-openjdk-amd64/jre.
Currently used VM configuration is: OpenJDK 64-Bit Server VM
Download the latest JVMCI JDK 8 from http://www.oracle.com/technetwork/oracle-labs/program-languages/downloads/index.html

Please suggest if I have missed out anything here. I do not want to download the built version of JVMCI because in parallel I am working on building it on PPC.

Regards
Deepali


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