I want to use RMI,my JDK is java version "1.4.1_02",and I use j2sdkee1.3.1,when I run command rmic, I got errors,like follows:

C:\>rmic
Exception in thread "main" java.lang.NoClassDefFoundError: sun/tools/java/Consta
nts
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java :502)
        at java.security.SecureClassLoader.defineClass(Secure ClassLoader.java:123)
        at java.net.URLClassLoader.defineClass(URLClassLoader .java:250)
        at java.net.URLClassLoader.access$100(URLClassLoader. java:54)
        at java.net.URLClassLoader$1.run(URLClassLoader.java: 193)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.j ava:186)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:2 99)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:2 55)
        at java.lang.ClassLoader.loadClassInternal(ClassLoade r.java:315)
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java :502)
        at java.security.SecureClassLoader.defineClass(Secure ClassLoader.java:123)
        at java.net.URLClassLoader.defineClass(URLClassLoader .java:250)
        at java.net.URLClassLoader.access$100(URLClassLoader. java:54)
        at java.net.URLClassLoader$1.run(URLClassLoader.java: 193)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.j ava:186)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:2 99)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:2 92)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:265)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:2 55)
        at java.lang.ClassLoader.loadClassInternal(ClassLoade r.java:315)

Why occurs above errors? How to solve it?

Thanks in advance!
Edward

Hi,
This info is not enough. Can you send me the code? I might be able to help you. My ID: anirbanbasuz@yahoo.com

Anirban

Anirban Basu

Hi
Encounter the same problem and found out it is the version which the code is compiled.
Problem is that when you run the code in jdk 1.3. - It will not run as it had been compiled in jdk 1.4.

In order to resolve this problem,
1. java -target 1.3 <pgm Name>
2. rmic -v1.3 <pgm Name>

This will resolve the problem.