[Studio-6.6.1][Exception] Exception in thread "main" java.lang.NoClassDefFoundError

Support
#1

You can help launch Studio? TNX

$ ./studio 
Run Studio GUI
Exception in thread "main" java.lang.NoClassDefFoundError: javafx/application/Application
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at com.haulmont.studio.server.EntryPoint.b(SourceFile:69)
	at com.haulmont.studio.server.EntryPoint.main(SourceFile:51)
Caused by: java.lang.ClassNotFoundException: javafx.application.Application
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 14 more

java -version
openjdk version "1.8.0_131"
OpenJDK Runtime Environment (build 1.8.0_131-8u131-b11-2ubuntu1.16.04.3-b11)
OpenJDK 64-Bit Server VM (build 25.131-b11, mixed mode)

DISTRIB_ID=LinuxMint
DISTRIB_RELEASE=18.2
DISTRIB_CODENAME=sonya
DISTRIB_DESCRIPTION="Linux Mint 18.2 Sonya"
NAME="Linux Mint"
VERSION="18.2 (Sonya)"
ID=linuxmint
ID_LIKE=ubuntu
PRETTY_NAME="Linux Mint 18.2"
VERSION_ID="18.2"
HOME_URL="http://www.linuxmint.com/"
SUPPORT_URL="http://forums.linuxmint.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/linuxmint/"
VERSION_CODENAME=sonya
UBUNTU_CODENAME=xenial
Linux version 4.10.0-33-generic (buildd@lgw01-22) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4) ) #37~16.04.1-Ubuntu SMP Fri Aug 11 14:07:24 UTC 2017
Unable to start Studio - javafx error
#2

You should install OpenJFX:

sudo apt-get install openjfx
1 Like
#3

Thank you for your answer. I solved it another way. Below instruction how I do it.


sudo apt-get purge openjdk*
sudo apt autoremove
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
sudo apt install oracle-java8-set-default

You need to set the JAVA_HOME like this (path /etc/environment):

JAVA_HOME="/usr/lib/jvm/java-8-oracle/jre/"

Now. Studio work as a charm :wink:

$ java -version
java version "1.8.0_144"
Java(TM) SE Runtime Environment (build 1.8.0_144-b01)
Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode)
1 Like