[SUREFIRE-1735] Using GraalVM toolchain causes NPE when default JAVA_HOME is not set to GraalVM JDK's home

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.0.0-M4
• Component/s: Maven Surefire Plugin
• Assignee: Unassigned
• Reporter: Adam Czepil
• Created: 06/Dec/19 06:27
• Updated: 06/Dec/19 06:28

Description

When I use toolchains and configure GraalVM as the active toolchain AND my default JDK is NOT GraalVM (JAVA_HOME != GraalVM) I'm getting NPE from surefire plugin

Caused by: java.lang.NullPointerException

    at org.apache.maven.surefire.booter.SystemUtils.toJdkVersionFromReleaseFile (SystemUtils.java:141)

    at org.apache.maven.surefire.booter.SystemUtils.isJava9AtLeast (SystemUtils.java:215)

    at org.apache.maven.plugin.surefire.AbstractSurefireMojo.getEffectiveJvm (AbstractSurefireMojo.java:2446)

 

It works fine when I change JAVA_HOME to point to GraalVM home.

The reason is that https://github.com/apache/maven-surefire/blob/master/surefire-booter/src/main/java/org/apache/maven/surefire/booter/SystemUtils.java try to read JAVA_VERSION from releases file and GraalVM doesn't have this variable there.

I'm not sure who is at fault, maybe GraalVM should export that var.