http://bugzilla.opensuse.org/show_bug.cgi?id=982622 Bug ID: 982622 Summary: Firefox + Java = Exception was: net.sourceforge.jnlp.LaunchException: Fatal: Initialization Error: Could not initialize applet Classification: openSUSE Product: openSUSE Distribution Version: Leap 42.1 Hardware: x86-64 OS: openSUSE 42.1 Status: NEW Severity: Critical Priority: P5 - None Component: Java Assignee: bnc-team-java@forge.provo.novell.com Reporter: skoltogyan@mail.ru QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- Created attachment 679144 --> http://bugzilla.opensuse.org/attachment.cgi?id=679144&action=edit ScreenShot With Error Leap 42.1 with LXDE. Firefox. open URL: http://java.com/en/ Select: http://java.com/en/download/installed8.jsp ( "Do i have Java" ) And have this error: Another available info: IcedTea-Web Plugin version: 1.6.1 (suse-1.2-x86_64) 6/1/16 1:40 PM Exception was: net.sourceforge.jnlp.LaunchException: Fatal: Initialization Error: Could not initialize applet. For more information click "more information button". at net.sourceforge.jnlp.Launcher.createApplet(Launcher.java:764) at net.sourceforge.jnlp.Launcher.getApplet(Launcher.java:686) at net.sourceforge.jnlp.Launcher$TgThread.run(Launcher.java:933) Caused by: net.sourceforge.jnlp.LaunchException: Fatal: Initialization Error: Unknown Main-Class. Could not determine the main class for this application. at net.sourceforge.jnlp.runtime.JNLPClassLoader.initializeResources(JNLPClassLoader.java:701) at net.sourceforge.jnlp.runtime.JNLPClassLoader. (JNLPClassLoader.java:285) at net.sourceforge.jnlp.runtime.JNLPClassLoader.createInstance(JNLPClassLoader.java:357) at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:429) at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:403) at net.sourceforge.jnlp.Launcher.createApplet(Launcher.java:729) ..... About my Packages: 1) # cat /etc/issue Welcome to openSUSE Leap 42.1 - Kernel \r (\l). 2) # rpm -qa | grep -i firefox MozillaFirefox-46.0-21.1.x86_64 MozillaFirefox-branding-openSUSE-40-5.1.x86_64 3) # rpm -qa | grep -i java libjavascriptcoregtk-1_0-0-2.4.10-7.2.x86_64 java-1_7_0-openjdk-plugin-1.6.1-1.2.x86_64 java-1_7_0-openjdk-headless-1.7.0.101-31.1.x86_64 java-1_8_0-openjdk-headless-1.8.0.91-12.1.x86_64 timezone-java-2016d-0.14.1.noarch java-1_7_0-openjdk-1.7.0.101-31.1.x86_64 javapackages-tools-2.0.1-10.1.x86_64 libjavascriptcoregtk-4_0-18-2.10.7-7.1.x86_64 java-1_8_0-openjdk-plugin-1.6.1-1.2.x86_64 java-1_8_0-openjdk-1.8.0.91-12.1.x86_64 libjavascriptcoregtk-3_0-0-2.4.10-7.2.x86_64 4) # update-alternatives --config java There are 2 choices for the alternative java (providing /usr/bin/java). Selection Path Priority Status ------------------------------------------------------------ * 0 /usr/lib64/jvm/jre-1.8.0-openjdk/bin/java 1805 auto mode 1 /usr/lib64/jvm/jre-1.7.0-openjdk/bin/java 1705 manual mode 2 /usr/lib64/jvm/jre-1.8.0-openjdk/bin/java 1805 manual mode -- You are receiving this mail because: You are on the CC list for the bug.