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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
Hi Paul- > Finally got it up and running. Yes, Java 6 was set to be the default > version, but strangely, I had to uncheck the Java 5 boxes, even though > they were set to be ancillary versions. This should be fixed in the nightly build so it shouldn't matter if Java 5 is checked. We'll be making a 2.8u1 release in the next couple of days. > Thanks for all of your help. Sure thing. Good luck! Don > Unidata IDV Support wrote: > > Hi Paul- > > > > I've installed Java 6 and also rebooted my machine just in case. I > still get the same errors on start-up (see below), both if I try to > start IDV from the IDV application launcher or using the runIDV > script. It doesn't seem like the Java 6 installation can really get > screwed up--it's all automatic once you click on the updater. After > the update, I received a "Successfully installed" message. > > > > It sounds like Java 5 is still the default version. Did you set Java 6 to be > the default as described on the System Requirements page after the > installation? Java 6 has to be first in the list. > > > > I've also tried the nightly build at > <http://www.unidata.ucar.edu/software/idv/nightly/>. ; When I > click on the "IDV" link under "Webstart", my download window pops open > and shows that idv.jnlp downloaded, but nothing else happens. > > > > I'm not sure what's going on with webstart, but it could be a problem with > the Java install order. Download the Mac installer from: > > http://www.unidata.ucar.edu/downloads/idv/nightly > > And try that. > > Don > > > > Last login: Tue Feb 2 10:40:08 on console > /Applications/IDV_2.8/runIDV ; exit; > paul-markowskis-macbook-pro:~ marko$ /Applications/IDV_2.8/runIDV ; > exit; > Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad > version number in .class file > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:676) > at > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) > at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) > at java.net.URLClassLoader.access$100(URLClassLoader.java:56) > at java.net.URLClassLoader$1.run(URLClassLoader.java:195) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) > at java.lang.ClassLoader.loadClass(ClassLoader.java:317) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:280) > at java.lang.ClassLoader.loadClass(ClassLoader.java:252) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:375) > logout > > [Process completed] > > > > > > > > > Unidata IDV Support wrote: > > Hi Paul- > > > > Full Name: Paul Markowski > Email Address: address@hidden > Organization: Penn State University > Package Version: 2.8 (updated Jan 15, 2010) > Operating System: MacOSX 10.5.8 > Hardware: MacBook Pro > Description of problem: I just installed the latest version of IDV. When I > attempt to run IDV, I receive the following errors: > > > > This version requires Java 6. Please see the instructions for updating your > Mac at: > > http://www.unidata.ucar.edu/software/IDV/docs/userguide/Systems.html#os > > We have found that some Macs are having problems running the IDV from the IDV > application launcher (IDV.app). If that's the case, then download the > nightly build which has a fix for the app or use the runIDV script in the > install directory. > > In either case, you'll have to update to Java 6. > > Don Murray > > > java.lang.UnsupportedClassVersionError: Bad version number in .class file > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:676) > at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) > at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) > at java.net.URLClassLoader.access$100(URLClassLoader.java:56) > at java.net.URLClassLoader$1.run(URLClassLoader.java:195) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) > at java.lang.ClassLoader.loadClass(ClassLoader.java:317) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:280) > at java.lang.ClassLoader.loadClass(ClassLoader.java:307) > at java.lang.ClassLoader.loadClass(ClassLoader.java:252) > at com.exe4j.runtime.LauncherEngine.launch(Unknown Source) > at com.install4j.runtime.MacLauncher.main(Unknown Source) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:592) > at apple.launcher.LaunchRunner.run(LaunchRunner.java:115) > at apple.launcher.LaunchRunner.callMain(LaunchRunner.java:50) > at > apple.launcher.JavaApplicationLauncher.launch(JavaApplicationLauncher.java:52) > > > > > > H > > Ticket Details > =================== > Ticket ID: HJS-443829 > Department: Support IDV > Priority: Normal > Status: Open > > > > > > -- > > > > > > > p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica} > > Paul Markowski > Associate Professor of Meteorology > Pennsylvania State University > 503 Walker Building > University Park, PA 16802 > email: address@hidden > phone: 814.865.9736 > fax: 814.865.3663 > web: http://www.meteo.psu.edu/~marko > > > > > > > > > > Ticket Details > =================== > Ticket ID: HJS-443829 > Department: Support IDV > Priority: Normal > Status: Open > > > > > > -- > > > > > > > p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica} > > Paul Markowski > Associate Professor of Meteorology > Pennsylvania State University > 503 Walker Building > University Park, PA 16802 > email: address@hidden > phone: 814.865.9736 > fax: 814.865.3663 > web: http://www.meteo.psu.edu/~marko > > > > > Ticket Details =================== Ticket ID: HJS-443829 Department: Support IDV Priority: Normal Status: Closed