我正在尝试将我的localhost与sshj库提供的类连接起来，用于教育目的。所以我编写了上面的代码，但new SSHClient.authPublickey(String userName,KeyProvider... keys)方法存在问题。我跟踪代码的每一行不仅仅是我也跟踪了sshj库但是找不到任何有用的东西。我给出了错误代码，从我的IDE（NetBeans 8.1）生成的堆栈跟踪，我的源代码和导入的jar到我的项目中。
Jar文件：（由于stackoverflow信誉限制，我无法共享2个以上的链接）
1。 sshj-0.2.3.jar
2。 slf4j-api-1.7.21.jar link = binary and source
3。 bcprov，bcpkix，bcpg，bcmail（jdk 1.5 - 1.8版本文件）link = Signed Jar Section
源代码：
SSHClient sshClient = new SSHClient();
sshClient.addHostKeyVerifier(new PromiscuousVerifier());
sshClient.connect("localhost");
File keyFile = new File(dir);//dir = directory of publickey file
KeyProvider pubkey = sshClient.loadKeys(keyFile.getPath(),pass);//pass = passphrase of the pubkey file
sshClient.authPublickey(uName, pubkey); //error occuring in this line
错误代码：
Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: org/bouncycastle/openssl/PEMReader
at net.schmizz.sshj.userauth.keyprovider.PKCS8KeyFile.readKeyPair(PKCS8KeyFile.java:114)
at net.schmizz.sshj.userauth.keyprovider.PKCS8KeyFile.getPublic(PKCS8KeyFile.java:71)
at net.schmizz.sshj.userauth.method.KeyedAuthMethod.putPubKey(KeyedAuthMethod.java:44)
at net.schmizz.sshj.userauth.method.AuthPublickey.buildReq(AuthPublickey.java:62)
at net.schmizz.sshj.userauth.method.AuthPublickey.buildReq(AuthPublickey.java:81)
at net.schmizz.sshj.userauth.method.AbstractAuthMethod.request(AbstractAuthMethod.java:63)
at net.schmizz.sshj.userauth.UserAuthImpl.tryWith(UserAuthImpl.java:236)
at net.schmizz.sshj.userauth.UserAuthImpl.authenticate(UserAuthImpl.java:89)
at net.schmizz.sshj.SSHClient.auth(SSHClient.java:204)
at net.schmizz.sshj.SSHClient.authPublickey(SSHClient.java:304)
at net.schmizz.sshj.SSHClient.authPublickey(SSHClient.java:323)
at Main.SignInFuncts.auth(SignInFuncts.java:29)
at Main.SignInFuncts.signIn(SignInFuncts.java:52)
at Main.SignIn.buttonSignInActionPerformed(SignIn.java:118)
at Main.SignIn.access$000(SignIn.java:6)
at Main.SignIn$1.actionPerformed(SignIn.java:56)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6516)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
at java.awt.Component.processEvent(Component.java:6281)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4872)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4698)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4698)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:747)
at java.awt.EventQueue.access$300(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:706)
at java.awt.EventQueue$3.run(EventQueue.java:704)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:720)
at java.awt.EventQueue$4.run(EventQueue.java:718)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:717)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
Caused by: java.lang.ClassNotFoundException: org.bouncycastle.openssl.PEMReader
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
Stack Trace Line是sshClient.authPublickey（uName，pubkey）
SSHClient.java 1.分支
public void authPublickey(String username, KeyProvider... keyProviders)
throws UserAuthException,
TransportException {
authPublickey(username, Arrays.<KeyProvider>asList(keyProviders));
Stack Trace Line是authPublickey（用户名， Arrays.asList（keyProviders））;
SSHClient.java 2.分支
public void authPublickey(String username, Iterable<KeyProvider> keyProviders)
throws UserAuthException,
TransportException {
final List<AuthMethod> am = new LinkedList<AuthMethod>();
for (KeyProvider kp : keyProviders)
am.add(new AuthPublickey(kp));
auth(username, am);
auth（用户名，上午）;
SSHClient.java 3.分支
public void auth(String username, Iterable<AuthMethod> methods)
throws UserAuthException, TransportException {
assert isConnected();
auth.authenticate(username, (Service) conn, methods);//exception thrown at this line
我用ssh-keygen生成了我的ssh公钥而没有passphrase我也有passphrase protected pubkey。如果我尝试同样的事情，错误仍然是一样的。 如果需要任何其他的东西我准备好分享就说出来。
答案 0 :(得分：0)
ClassNotFoundError您获得org.bouncycastle.openssl.PEMReader。这意味着在类路径中找不到BouncyCastle库。
需要PEMReader读取您的公钥文件才能解密它。
此外，您可能希望升级到较新的sshj版本，0.2.3是古老的。