[eggsplorer]

Hi,

I'm running JDownloader 2 on linux and it won't start anymore:
"An error has occurred during startup"

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at org.jdownloader.update.launcher.JDLauncher.main(JDLauncher.java:83)
	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:497)
	at com.exe4j.runtime.LauncherEngine.launch(LauncherEngine.java:62)
	at com.install4j.runtime.launcher.UnixLauncher.main(UnixLauncher.java:57)
Caused by: java.lang.reflect.InvocationTargetException
	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:497)
	at org.jdownloader.update.launcher.JDLauncher.main(JDLauncher.java:79)
	... 6 more
Caused by: java.lang.NoClassDefFoundError: Could not initialize class java.util.Currency
	at java.text.DecimalFormatSymbols.initialize(DecimalFormatSymbols.java:638)
	at java.text.DecimalFormatSymbols.<init>(DecimalFormatSymbols.java:113)
	at sun.util.locale.provider.DecimalFormatSymbolsProviderImpl.getInstance(DecimalFormatSymbolsProviderImpl.java:85)
	at java.text.DecimalFormatSymbols.getInstance(DecimalFormatSymbols.java:180)
	at sun.util.locale.provider.NumberFormatProviderImpl.getInstance(NumberFormatProviderImpl.java:178)
	at sun.util.locale.provider.NumberFormatProviderImpl.getIntegerInstance(NumberFormatProviderImpl.java:131)
	at java.text.NumberFormat.getInstance(NumberFormat.java:884)
	at java.text.NumberFormat.getInstance(NumberFormat.java:861)
	at java.text.NumberFormat.getIntegerInstance(NumberFormat.java:508)
	at java.text.SimpleDateFormat.initialize(SimpleDateFormat.java:639)
	at java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:605)
	at sun.util.locale.provider.DateFormatProviderImpl.getInstance(DateFormatProviderImpl.java:150)
	at sun.util.locale.provider.DateFormatProviderImpl.getDateTimeInstance(DateFormatProviderImpl.java:142)
	at java.text.DateFormat.get(DateFormat.java:814)
	at java.text.DateFormat.get(DateFormat.java:798)
	at java.text.DateFormat.getDateTimeInstance(DateFormat.java:572)
	at org.appwork.utils.logging.LogFormatter.<init>(LogFormatter.java:56)
	at org.appwork.utils.logging2.LogConsoleHandler$1.<init>(LogConsoleHandler.java:54)
	at org.appwork.utils.logging2.LogConsoleHandler.<init>(LogConsoleHandler.java:54)
	at org.appwork.utils.logging2.LogSourceProvider.<init>(LogSourceProvider.java:137)
	at org.appwork.utils.logging2.extmanager.LoggerFactory.<init>(LoggerFactory.java:149)
	at org.appwork.utils.logging2.extmanager.LoggerFactory.initialize(LoggerFactory.java:129)
	at org.appwork.utils.logging2.extmanager.LoggerFactory.<clinit>(LoggerFactory.java:57)
	at org.appwork.utils.logging2.LogSourceRedirector.getDefaultLogger(LogSourceRedirector.java:64)
	at org.appwork.loggingv3.LogV3.info(LogV3.java:101)
	at org.appwork.utils.Application.setApplication(Application.java:881)
	at org.jdownloader.update.launcher.SecondLevelLauncher.<clinit>(SecondLevelLauncher.java:96)
	at org.jdownloader.update.launcher.JDLauncherViaClassLoader.main(JDLauncherViaClassLoader.java:10)
	... 11 more

Since I'm running JDownloader headless, I don't reall know when and why it happened.

Any advice?

[Jiaz]

Your java version is either incomplete or broken. Either you've updated your java version or something else on your system. In doubt I would suggest to simply install JDownloader again.
backup the complete cfg folder and restore it later to keep all settings/links/accounts.