Opened 11 years ago

Closed 11 years ago

#514 closed defect (worksforme)

JOSM will not start - Unsupported major.minor version

Reported by: steve.ousley@… Owned by: framm
Priority: major Milestone:
Component: Core Version: latest
Keywords: Cc:


When running josm from the terminal on my linux machine, an error comes up that the major.minor version is unsupported. This is replicable every time on my system.

Full error:
homer ~ # DISPLAY=:0 josm
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/openstreetmap/josm/gui/MainApplication (Unsupported major.minor version 49.0)

at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(
at Method)
at java.lang.ClassLoader.loadClass(
at sun.misc.Launcher$AppClassLoader.loadClass(
at java.lang.ClassLoader.loadClass(
at java.lang.ClassLoader.loadClassInternal(

homer ~ #

Attachments (0)

Change History (2)

comment:1 Changed 11 years ago by Gabriel Ebner <ge@…>

What java version do you have? You need at least 1.5.

comment:2 Changed 11 years ago by Gabriel Ebner <ge@…>

Resolution: worksforme
Status: newclosed

Closing for lack of response.

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