Build from sources failed with an exception

[cimplart]

Hi,
I've tried it on Ubuntu 18.04 and it failed to build from sources:

art@ubuntu:~/projects/jenkins-docker-examples/01-gradle-build$ ./gradlew --stacktrace dockerBuild dockerRun

FAILURE: Build failed with an exception.

• What went wrong:
  Could not determine java version from '10.0.2'.

• Try:
  Run with --info or --debug option to get more log output.

• Exception is:
  java.lang.IllegalArgumentException: Could not determine java version from '10.0.2'.
  at org.gradle.api.JavaVersion.toVersion(JavaVersion.java:63)
  at org.gradle.api.JavaVersion.current(JavaVersion.java:72)
  at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:32)
  at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:24)
  at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:206)
  at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:169)
  at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33)
  at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22)
  at org.gradle.launcher.Main.doAction(Main.java:33)
  at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.base/java.lang.reflect.Method.invoke(Method.java:564)
  at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:54)
  at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:35)
  at org.gradle.launcher.GradleMain.main(GradleMain.java:23)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.base/java.lang.reflect.Method.invoke(Method.java:564)
  at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:30)
  at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:127)
  at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:56)

What can I do to fix this?
Regards,
Art