I try to use mxj msa fluid for instance, or jitter.balls from efe (

https://cycling74.com/forums/jitter-balls

But everytime the same answer from my dear friend max:

• error: java.lang.UnsupportedClassVersionError: Bad version number in .class file

• error: at java.lang.ClassLoader.defineClass1(Native Method)

• error: at java.lang.ClassLoader.defineClass(ClassLoader.java:675)

• error: at com.cycling74.max.MXJClassLoaderImpl.doLoadClass(MXJClassLoaderImpl.java:119)

• error: at com.cycling74.max.MXJClassLoader.loadClazz(MXJClassLoader.java:88)

Although I put the class in the classes folder… maybie my java file is not at the same place… 

I have java issue;
I try to use mxj msa fluid for instance, or jitter.balls from efe (https://cycling74.com/forums/jitter-balls )…
But everytime the same answer from my dear friend max:

• error: java.lang.UnsupportedClassVersionError: Bad version number in .class file
• error: at java.lang.ClassLoader.defineClass1(Native Method)
• error: at java.lang.ClassLoader.defineClass(ClassLoader.java:675)
• error: at com.cycling74.max.MXJClassLoaderImpl.doLoadClass(MXJClassLoaderImpl.java:119)
• error: at com.cycling74.max.MXJClassLoader.loadClazz(MXJClassLoader.java:88)
• error: Could not load class 'Ball'

Although I put the class in the classes folder… maybie my java file is not at the same place… 
I am on Leopard 10.5…
Any suggestions ?
Thx.


can-not-make-mxj-work

have you installed the developer tools on your mac?

which version of java do you have?, you can check that information by opening your terminal and typing:

are you using any IDE like eclipse to compile your classes?

can you load any of the classes available on max?

Hello Ad.
some questions:
have you installed the developer tools on your mac?
which version of java do you have?, you can check that information by opening your terminal and typing:
java -version
are you using any IDE like eclipse to compile your classes?
can you load any of the classes available on max?

Weird point anyway: When I type "mxj now", it doesn't work… But when I open the now helpfile, the mxj is correctly loaded…here's maybie one clue of that issue…

Thx for your concern (is that English ? :) )

Hello efe;
Yes I have installed Xcode 3.1.
java version: "1.5.0_19"
I compile my classes with javac. 

Yes I can load classes in max (now…).
Weird point anyway: When I type "mxj now", it doesn't work… But when I open the now helpfile, the mxj is correctly loaded…here's maybie one clue of that issue…
Thx for your concern (is that English ? :) )
Ad


Emmanuel, are you compiling with java 6? Cause that's what that error would indicate to me.

Although I still have a problem with msa fluid.

javac -classpath /Applications/Max5/Cycling '74/java/lib/MSAFluid.jar fluid_simulation.java

Sorry for this non-interesting issue, I'm really beginner in this field

Yep, update works for balls ! Thx.
Although I still have a problem with msa fluid. 

here's my terminal compilation:
javac -classpath /Applications/Max5/Cycling '74/java/lib/MSAFluid.jar fluid_simulation.java

If you are planning to add more than one jar you will need multiple paths. Herewith a small example. You should type on the terminal in order to compile this small(rather useless) class:

javac -classpath /Applications/Max5/Cycling '74/java/lib/max.jar:/Applications/Max5/Cycling '74/java/lib/jitter.jar Windows.java

Notice that they are separated by : and I am including both max and jitter files.

In your case I guess you will need to add the MSAFluid.jar and then compile.

However, I would suggest you to use the terminal just for small tests and move to a proper IDE in order to make bigger projects; that is much easier and allows binding multiple jars and inherit from classes. I use Eclipse but I am sure it is possible to develop mxj projects with XCode(they removed, somehow, the java templates) and NetBeans

hello Ad.
If you are planning to add more than one jar you will need multiple paths. Herewith a small example. You should type on the terminal in order to compile this small(rather useless) class:
javac -classpath /Applications/Max5/Cycling '74/java/lib/max.jar:/Applications/Max5/Cycling '74/java/lib/jitter.jar Windows.java

Notice that they are separated by : and I am including both max and jitter files.
In your case I guess you will need to add the MSAFluid.jar and then compile.

I'll try to compile my fluid issue in Eclipse.

Which is sure is that I have several errors in my fluid simulation java file…

I have to make Mark Dexter a friend. I'll tell you about that, it 's going to take me a little bit time!

I'll try to compile my fluid issue in Eclipse.
Which is sure is that I have several errors in my fluid simulation java file…

I have to make Mark Dexter a friend. I'll tell you about that, it 's going to take me a little bit time!
Ad.


can not make mxj work……