Possible 'Class Path' Issues

Question

Hi Guys,
I have problems compiling a file and I suspect it could be something related to classpaths. I am using NetBeans 6.9.1 as my IDE. When I set JDK 1.6 as my platform and complile, there are no issues, the programs compiles fine.
My 'classpath' and 'path' are as follows:
classpath:
.;C:\Program Files\Java\jre1.6.0_07\lib\ext.;c:\java\classes;
path:
\....\....\....C:\Program Files\Java\jdk1.6.0_21\
If I were to set the JDK as in 1.5, I seem to get the follwing error:
' cannot access org.red5.server.api.IScope
bad class file: C:\Program
Files\Red5\red5.jar(org/red5/server/api/IScope.class)
class file has wrong version 50.0, should be 49.0
Please remove or make sure it appears in the correct subdirectory of the classpath.
import org.red5.server.api.IScope;
1 error
To rectify the problem I maded changes to my classpath and path, and yet the problem persists. The changes I made
are as follows:
classpath:
.;C:\Program Files\Java\jre1.6.0_07\lib\ext.;C:\Program Files\Java\jre1.5.0_22\lib\ext.;c:\java\classes;
path:
\....\....\....C:\Program Files\Java\jdk1.6.0_21;C:\Program Files\Java\jdk1.5.0_22;C:\....\
I hope someone can advise me on how I get rectify the problem and get the program to compile with JDK 1.5. Thanks.

Answer 1

he wants to use JDK 1.5.Do read the thread before you post. He is* using JDK 1.5 when he gets the error message. He said so. This is the problem.* Not the solution. When he uses 1.6 he doesn't get the error.
His environment is a bit messed up because he has PATH entries for both JDK versions.There is precisely zero evidence for that assertion.
If he wants to compile and test with JDK 1.5, then removing 1.6 would make sense.No it wouldn't. He is using classes compiled for 1.6 with a 1.5 compiler. His problem is with red5.jar(org/red5/server/api/IScope.class) whose class version is 50.0. It's all written there above. If he wants to use that .jar file he has to use 1.6. Or else recompile that .jar file with 1.5, if he has the sources.