UnsupportedClassVersionError

Explcitly running with java 11, but sometimes on page refresh/app launch get this. ususally if I refresh again, the error is gone. But seems quite strange, since the class in question is a Java library class. In this case it is the BasicLookAndFeel class, but sometimes it is other JRE classes: java.lang.UnsupportedClassVersionError: Required Java version 45532, but CheerpJ only supports up to Java 11 at this time. Unsupported class: javax/swing/plaf/basic/BasicLookAndFeel
2 Replies
JacobDK123
JacobDK123OP2d ago
just got this: java.lang.UnsupportedClassVersionError: Required Java version 4564, but CheerpJ only supports up to Java 11 at this time. Unsupported class: javax/swing/text/View
apignotti
apignotti2d ago
Hi, can you provide a complete example that demontrate this problem? It seems to me you are downloading corrupted data, which is not something we have ever seen before

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