java classloader runtime error in netbeans -


when run project shows error

run: `java.lang.securityexception:` prohibited package name: java.course     @ java.lang.classloader.predefineclass(classloader.java:659)     @ java.lang.classloader.defineclass(classloader.java:758)     @ java.security.secureclassloader.defineclass(secureclassloader.java:142)     @ java.net.urlclassloader.defineclass(urlclassloader.java:467)     @ java.net.urlclassloader.access$100(urlclassloader.java:73)     @ java.net.urlclassloader$1.run(urlclassloader.java:368)     @ java.net.urlclassloader$1.run(urlclassloader.java:362)     @ java.security.accesscontroller.doprivileged(native method)     @ java.net.urlclassloader.findclass(urlclassloader.java:361)     @ java.lang.classloader.loadclass(classloader.java:424)     @ sun.misc.launcher$appclassloader.loadclass(launcher.java:331)     @ java.lang.classloader.loadclass(classloader.java:357)     @ sun.launcher.launcherhelper.checkandloadmain(launcherhelper.java:495) error: jni error has occurred, please check installation , try again exception in thread "main" java result: 1 build successful (total time: 2 seconds)

what can solve problem ?

note:-please simplify explanation because i'm still structured in programming department , still in tutorial.

you can't use 'java' name of package. java.course name of package isn't allowed. try renaming package


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