Código:
gracias de Antemano... Saludos Exception in thread "main" java.lang.NoClassDefFoundError: logica/usuario (wrong name: logica/Usuario) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:621) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) at java.net.URLClassLoader.access$000(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1231) at org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1149) at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2257) at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2307) at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2313) at org.apache.jasper.compiler.Node$Root.accept(Node.java:481) at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2257) at org.apache.jasper.compiler.Generator.generate(Generator.java:3494) at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:227) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:409) at org.apache.jasper.JspC.processFile(JspC.java:1150) at org.apache.jasper.JspC.execute(JspC.java:1319) at org.netbeans.modules.web.project.ant.JspC.main(JspC.java:97)