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langerhans / multidoge

MultiDoge is a desktop Dogecoin client, powered by dogecoinj. Ported from the MultiBit Bitcoin client.
http://multidoge.org
MIT License
257 stars 110 forks source link

Windows 10 - JRE6 - Main thread dies due to Java7 compiled com.xeiam.xchange library #60

Open boutcher opened 6 years ago

boutcher commented 6 years ago

When starting up, I see this in the logs, and then nothing (if the main thread dies, I can understand why)

07:08:24.907 [main] DEBUG o.m.v.swing.ColorAndFontConstants - labelBackground = 240 240 240 07:08:24.907 [main] DEBUG o.m.v.swing.ColorAndFontConstants - labelForeground = 0 0 0 07:08:24.909 [main] INFO o.m.ApplicationDataDirectoryLocator - Application data directory.1 = 'C:\Users\James\AppData\Roaming\MultiDoge' Exception in thread "main" java.lang.UnsupportedClassVersionError: com/xeiam/xchange/exceptions/ExchangeException : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$000(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at org.multibit.viewsystem.swing.MultiBitFrame.(MultiBitFrame.java:290) at org.multibit.MultiBit.main(MultiBit.java:239) at org.multibit.MultiBitInExecutableJar.main(MultiBitInExecutableJar.java:98)

boutcher commented 6 years ago

I'm sure this is due to Java 6 (only) being on this Windows 10 box I've used primarily for mining... I'm updating now.

(But, I'm sure there are others who don't know how to look in a log and update Java -- so it may be useful to detect the version and throw up an error message telling them what to do if they encounter this problem, instead of the main thread dying)

boutcher commented 6 years ago

And did confirm, once Java 8 was installed, Multidoge launches fine.

langerhans commented 6 years ago

Yeah you're right. It requires Java 7 minimum. Normally the installer should check this requirement. Did you use that or ran the jar directly?

boutcher commented 6 years ago

I'm pretty sure I ran the installer, but to be honest, I'm not completely sure. Want me to recreate?