access denied ("java.lang.RuntimePermission" "createClassLoader") on SonarQube 8


I am one of the develpers of the Sonargraph plugin ( The plugin version 4.0 runs fine with SonarQube 7.9.1 but fails on SonarQube 8.0.
I updated the plugin to produce more logging output and the exception that then appears in the ce.log is the following: access denied (“java.lang.RuntimePermission” “createClassLoader”)
at java.base/
at java.base/
at java.base/java.lang.SecurityManager.checkPermission(
at java.base/java.lang.SecurityManager.checkCreateClassLoader(
at java.base/java.lang.ClassLoader.checkCreateClassLoader(
at java.base/java.lang.ClassLoader.checkCreateClassLoader(
at java.base/java.lang.ClassLoader.(
at com.hello2morrow.sonargraph.integration.access.persistence.JaxbAdapter.(

Both SonarQube instances run on the same environment (Windows 10.0.18362 Build 18362, openjdk-11.0.1+13)

I searched the forum and saw similar reports:
Will this fix also solve my problem in SonarQube 8.1?

Any help is much appreciated!
Thanks and best regards