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Re: Java Error on startup of App
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Re: Java Error on startup of App


  • Subject: Re: Java Error on startup of App
  • From: Gino Pacitti <email@hidden>
  • Date: Tue, 30 May 2006 17:16:01 +0100

Thanks Gary

All I did was change the compiler settings for source to 1.4 and it worked great

Gino
On 30 May 2006, at 16:27, Gary Teter wrote:

Here's what I used when I had to upgrade to Java 1.5. Don't know if these instructions still hold for Xcode 2.3, but it's worth a shot:

Double-click Application Server target in Xcode.
Select Java Compiler Settings.
Set Target VM version to 1.4
Set Source Version to 1.4
Add this to Other Compiler Flags:
-bootclasspath "$(LOCAL_LIBRARY_DIR)/Java/Home/../../1.4/Classes/ classes.jar"


Then, with the popup menu at the upper left, switch from "Settings show [Development] configuration" to each of the other configurations (Deployment, Webserver, Default, etc.) and make all the same changes to the Target VM, Source and Other Compiler Flags.


On May 30, 2006, at 6:30 AM, Gino Pacitti wrote:

Hi Patrick

I tried this and did not really help.

I thought it was correct but I tried this all the way back to 1.3.1 and did not address the situation..

Still the same error...

Is there a global way to set the compiler to use an earlier JVM

Gino
On 30 May 2006, at 12:14, Patrick Middleton wrote:


On 30 May 2006, at 11:43, Gino Pacitti wrote:

Hi All

I have been running an app on Tiger server + latest Webobjects run environment and recently updated development to the latest XCode 2.3

Now I have tried to build an existing running app and when I try to start it I get a error - this runs on the client but problem is when I upload to the server:

java.lang.UnsupportedClassVersionError: Application (Unsupported major.minor version 49.0)


Any ideas what this could be?

Gino

The JVM on the target machine has encountered a classfile in JDK 1.5 format. This most likely means you built using the JDK 1.5 compiler, which became the default after a recent software update, and the machine on which you are trying to deploy is still using the 1.4.2 JRE. Since WebObjects has not (yet?) been qualified for Java 5, you are best off rebuilding using JDK 1.4*, see also http://docs.info.apple.com/article.html?artnum=75505 , as per Cliff Tuel's email "Re: Java 1.5 & WO?' of Tue, 25 Apr 2006 16:07:21 -0700 (PDT).


-- Patrick

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References: 
 >Java Error on startup of App (From: Gino Pacitti <email@hidden>)
 >Re: Java Error on startup of App (From: Patrick Middleton <email@hidden>)
 >Re: Java Error on startup of App (From: Gino Pacitti <email@hidden>)
 >Re: Java Error on startup of App (From: Gary Teter <email@hidden>)

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