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Problem with Java
Topic last updated 22 Mar 2012, by 
Elec Eng Univ Leeds.
1 reply
Elec Eng Univ Leeds.
1 reply
Hi All I am having problems running mbed vvia interfacing with Java. I am getting this error:
java.lang.NoClassDefFoundError: javax/comm/SerialPortEventListener at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) at java.lang.ClassLoader.defineClass(ClassLoader.java:615) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) at java.net.URLClassLoader.access$000(URLClassLoader.java:58) at java.net.URLClassLoader$1.run(URLClassLoader.java:197) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at sun.misc.Launcher$ExtClassLoader.findClass(Launcher.java:229) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:295) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) Caused by: java.lang.ClassNotFoundException: javax.comm.SerialPortEventListener at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at sun.misc.Launcher$ExtClassLoader.findClass(Launcher.java:229) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) ... 14 more Could not find the main class: helloworld.HelloWorld. Program will exit. Exception in thread "main" Java Result: 1
I am a not an expert in Java, but I have the mbedRPC library and RxTxcomm. jar files and serial dll files in the correct folder (i think so). could anyone direct me as to where I am going wrong?