Comment 5 for bug 1793852

latest report:
[error] RunTimeINIT: Java version not detected (using 7): 11.0.3+7-Ubuntu-1ubuntu218.04.1
java ?7?-64 version 11.0.3+7-Ubuntu-1ubuntu218.04.1 vm 11.0.3+7-Ubuntu-1ubuntu218.04.1 class 55.0 arch amd64
*** system properties dump
awt.toolkit = sun.awt.X11.XToolkit
file.encoding = UTF-8
file.separator = /
java.awt.graphicsenv = sun.awt.X11GraphicsEnvironment
java.awt.printerjob = sun.print.PSPrinterJob
java.class.path = /usr/share/sikulix/sikulix.jar
java.class.version = 55.0
java.home = /usr/lib/jvm/java-11-openjdk-amd64
java.io.tmpdir = /tmp
java.library.path = /usr/lib/jni:/usr/lib/alpha-linux-gnu/jni:/usr/lib/x86_64-linux-gnu/jni:/usr/lib/aarch64-linux-gnu/jni:/usr/lib/x86_64-kfreebsd-gnu/jni:/usr/lib/powerpc64-linux-gnu/jni:/usr/lib/powerpc64le-linux-gnu/jni:/usr/lib/s390x-linux-gnu/jni:/usr/lib/sparc64-linux-gnu/jni
java.runtime.name = OpenJDK Runtime Environment
java.runtime.version = 11.0.3+7-Ubuntu-1ubuntu218.04.1
java.specification.name = Java Platform API Specification
java.specification.vendor = Oracle Corporation
java.specification.version = 11
java.vendor = Oracle Corporation
java.vendor.url = http://java.oracle.com/
java.vendor.url.bug = http://bugreport.java.com/bugreport/
java.version = 11.0.3
java.version.date = 2019-04-16
java.vm.compressedOopsMode = 32-bit
java.vm.info = mixed mode, sharing
java.vm.name = OpenJDK 64-Bit Server VM
java.vm.specification.name = Java Virtual Machine Specification
java.vm.specification.vendor = Oracle Corporation
java.vm.specification.version = 11
java.vm.vendor = Oracle Corporation
java.vm.version = 11.0.3+7-Ubuntu-1ubuntu218.04.1
jdk.debug = release
line.separator =

os.arch = amd64
os.name = Linux
os.version = 4.15.0-50-generic
path.separator = :
python.home = /usr/share/jython
sikuli.console = true
sun.arch.data.model = 64
sun.boot.library.path = /usr/lib/jvm/java-11-openjdk-amd64/lib
sun.cpu.endian = little
sun.cpu.isalist =
sun.desktop = gnome
sun.font.fontmanager = sun.awt.X11FontManager
sun.io.unicode.encoding = UnicodeLittle
sun.java.command = /usr/share/sikulix/sikulix.jar
sun.java.launcher = SUN_STANDARD
sun.jnu.encoding = UTF-8
sun.management.compiler = HotSpot 64-Bit Tiered Compilers
sun.os.patch.level = unknown
user.country = US
user.dir = /home/eisti
user.home = /home/eisti
user.language = en
user.name = eisti
user.timezone = Europe/Paris
*** system properties dump end
[info] runcmd: lsb_release -i -r -s
Exception in thread "main" java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap')
 at org.sikuli.script.RunTime.storeClassPath(RunTime.java:2505)
 at org.sikuli.script.RunTime.isOnClasspath(RunTime.java:2552)
 at org.sikuli.script.RunTime.isJarOnClasspath(RunTime.java:2576)
 at org.sikuli.script.RunTime.libsExport(RunTime.java:933)
 at org.sikuli.script.RunTime.init(RunTime.java:720)
 at org.sikuli.script.RunTime.get(RunTime.java:297)
 at org.sikuli.ide.SikuliIDE.run(SikuliIDE.java:232)
 at org.sikuli.ide.Sikulix.main(Sikulix.java:31)