Question

smack与openfire 结合使用报错

Exception in thread "main" java.lang.NullPointerException
at org.jivesoftware.smack.util.stringencoder.Base64.encode(Base64.java:64)
at org.jivesoftware.smack.util.stringencoder.Base64.encode(Base64.java:60)
at org.jivesoftware.smack.util.stringencoder.Base64.encodeToString(Base64.java:42)
at org.jivesoftware.smackx.caps.EntityCapsManager.generateVerificationString(EntityCapsManager.java:705)
at org.jivesoftware.smackx.caps.EntityCapsManager.generateVerificationString(EntityCapsManager.java:579)
at org.jivesoftware.smackx.caps.EntityCapsManager.updateLocalEntityCaps(EntityCapsManager.java:474)
at org.jivesoftware.smackx.caps.EntityCapsManager.<init>(EntityCapsManager.java:309)
at org.jivesoftware.smackx.caps.EntityCapsManager.getInstanceFor(EntityCapsManager.java:371)
at org.jivesoftware.smackx.caps.EntityCapsManager$1.connectionCreated(EntityCapsManager.java:115)
at org.jivesoftware.smack.tcp.XMPPTCPConnection.initConnection(XMPPTCPConnection.java:636)
at org.jivesoftware.smack.tcp.XMPPTCPConnection.connectInternal(XMPPTCPConnection.java:834)
at org.jivesoftware.smack.AbstractXMPPConnection.connect(AbstractXMPPConnection.java:360)
at test.MyIMDemo.main(MyIMDemo.java:24)

Answer 1

我用 samck 4.1.3, 也遇到相同的问题， 要加 smack-java7-4.1.3.jar 这个包 可解决。
我用gradle，所以多加了一句：
compile "org.igniterealtime.smack:smack-java7:4.1.3"
解决了

Answer 2

我也遇到了这个问题 是不是最新的 4.1.1版本的

追问

嗯 .最后只能换了以前的版本了