Hi! (Java proselyte calling, please be gentle...) I'm trying to run an application: REW (roomeqwizard, https://www.roomeqwizard.com), which used to run fine on fc31, but crashes upon launch w. a freshly installed and updated fc32. Here's the error message i'm getting: $ ./roomeqwizard sep 11, 2020 6:16:28 PM roomeqwizard.RoomEQ_Wizard A SEVERE: Error during startup java.lang.NoSuchMethodError: org.jdesktop.swingx.util.OS.platformName(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String; java.lang.NoSuchMethodError: org.jdesktop.swingx.util.OS.platformName(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String; at roomeqwizard.RoomEQ_Wizard.O(y:2542) at roomeqwizard.RoomEQ_Wizard.main(y:1073) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.exe4j.runtime.LauncherEngine.launch(LauncherEngine.java:84) at com.install4j.runtime.launcher.UnixLauncher.start(UnixLauncher.java:66) at install4j.roomeqwizard.RoomEQ_Wizard.main(Unknown Source) According to the programmer, the platformName method is part of the code included in REW, and REW requires only a Java 8 runtime. Together with the author of the application I've tried to do some debugging, where things seem to point towards my local java installation: https://www.avnirvana.com/threads/linux-installation-problems-java-lang-nosuchmethoderror-org-jdesktop-swingx-util-os-platformname.7458/#post-55409 Info about my java: $ java -version openjdk version "1.8.0_265" OpenJDK Runtime Environment (build 1.8.0_265-b01) OpenJDK 64-Bit Server VM (build 25.265-b01, mixed mode) The openjdk and openjdk-devel packages, plus some, are installed: $ dnf list installed '*openjdk*' java-1.8.0-openjdk.x86_64 1:1.8.0.265.b01-1.fc32 @updates java-1.8.0-openjdk-devel.x86_64 1:1.8.0.265.b01-1.fc32 @updates java-1.8.0-openjdk-headless.x86_64 1:1.8.0.265.b01-1.fc32 @updates java-1.8.0-openjdk-openjfx.x86_64 1:1.8.0.265.b01-1.fc32 @updates Q: do the packages above provide me with a proper JRE? Any clues to what the error might be pointing at? Any suggestions as to how to get closer to debugging what's going on? Thanks in advance! Yours, -anders _______________________________________________ java-devel mailing list -- java-devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to java-devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/java-devel@xxxxxxxxxxxxxxxxxxxxxxx