True, but GraalVM is based on the OpenJDK / OracleJDK JVM:
"GraalVM Community Editions are based on OpenJDK version 1.8.0_232 and on OpenJDK version 11.0.5. GraalVM Enterprise Editions are based on Oracle Java version 1.8.0_231 and on Oracle Java version 11.0.5." Source: https://www.graalvm.org/docs/getting-started/
Until such a creation comes to be, the OpenJDK JVM will continue to thrive.