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Samebug tips

  1. ,

    A required library class, Doclet, is not loaded. It's usually found in tools.jar in the JDK so make sure to add it (tools.jar) to your project's build path.

  2. ,
    Expert tip

    A few things cause this exception:
    1) Check if you have all jars and if they're in the correct path.
    2) Your classpath might be broken, you can define it in the command line with java -cp yourClassPath or at your IDE if you're using one.

Solutions on the web

via GitHub by cheister
, 1 year ago
could not load FFI provider jnr.ffi.provider.jffi.Provider
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could not load FFI provider jnr.ffi.provider.jffi.Provider
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could not load FFI provider jnr.ffi.provider.jffi.Provider
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, 7 months ago
could not load FFI provider jnr.ffi.provider.jffi.Provider
via GitHub by ralphbellofatto
, 2 years ago
could not load FFI provider jnr.ffi.provider.jffi.Provider
java.lang.ClassNotFoundException: com.kenai.jffi.Type	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at jnr.ffi.provider.jffi.NativeRuntime.jafflType(NativeRuntime.java:193)	at jnr.ffi.provider.jffi.NativeRuntime.buildTypeMap(NativeRuntime.java:76)	at jnr.ffi.provider.jffi.NativeRuntime.(NativeRuntime.java:57)	at jnr.ffi.provider.jffi.NativeRuntime.(NativeRuntime.java:41)	at jnr.ffi.provider.jffi.NativeRuntime$SingletonHolder.(NativeRuntime.java:53)	at jnr.ffi.provider.jffi.NativeRuntime.getInstance(NativeRuntime.java:49)	at jnr.ffi.provider.jffi.Provider.(Provider.java:29)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)	at java.lang.Class.newInstance(Class.java:442)	at jnr.ffi.provider.FFIProvider$SystemProviderSingletonHolder.getInstance(FFIProvider.java:68)	at jnr.ffi.provider.FFIProvider$SystemProviderSingletonHolder.(FFIProvider.java:57)	at jnr.ffi.provider.FFIProvider.getSystemProvider(FFIProvider.java:35)	at jnr.ffi.Library.loadLibrary(Library.java:114)	at jnr.posix.POSIXFactory$DefaultLibCProvider$SingletonHolder.(POSIXFactory.java:279)	at jnr.posix.POSIXFactory$DefaultLibCProvider.getLibC(POSIXFactory.java:283)	at jnr.posix.BaseNativePOSIX.(BaseNativePOSIX.java:37)	at jnr.posix.LinuxPOSIX.(LinuxPOSIX.java:18)	at jnr.posix.POSIXFactory.loadLinuxPOSIX(POSIXFactory.java:143)	at jnr.posix.POSIXFactory.loadNativePOSIX(POSIXFactory.java:121)	at jnr.posix.POSIXFactory.loadPOSIX(POSIXFactory.java:90)	at jnr.posix.LazyPOSIX.loadPOSIX(LazyPOSIX.java:36)	at jnr.posix.LazyPOSIX.posix(LazyPOSIX.java:32)	at jnr.posix.LazyPOSIX.isNative(LazyPOSIX.java:378)	at org.jruby.RubyGlobal.prepareStdioChannel(RubyGlobal.java:295)	at org.jruby.RubyGlobal.initSTDIO(RubyGlobal.java:272)	at org.jruby.RubyGlobal.createGlobals(RubyGlobal.java:199)	at org.jruby.Ruby.init(Ruby.java:1190)	at org.jruby.Ruby.newInstance(Ruby.java:334)	at org.jruby.Main.internalRun(Main.java:271)	at org.jruby.Main.run(Main.java:232)	at org.jruby.Main.main(Main.java:204)