I am trying to connect with OpenFire server using smack. Here is my code
public static void main(String[] args) throws SmackException, IOException, XMPPException, InterruptedException {
XMPPTCPConnectionConfiguration config = XMPPTCPConnectionConfiguration.builder()
.setUsernameAndPassword("admin", "admin").setXmppDomain("XYZ")
.setHost("localhost").build();
AbstractXMPPConnection connection = new XMPPTCPConnection(config);
connection.connect(); // Establishes a connection to the server
connection.login(); // Logs in
}
pom.xml
<dependency>
<groupId>org.igniterealtime.smack</groupId>
<artifactId>smack-extensions</artifactId>
<version>4.3.5</version>
</dependency>
<dependency>
<groupId>org.igniterealtime.smack</groupId>
<artifactId>smack-core</artifactId>
<version>4.3.5</version>
</dependency>
<dependency>
<groupId>org.igniterealtime.smack</groupId>
<artifactId>smack-tcp</artifactId>
<version>4.3.5</version>
</dependency>
<dependency>
<groupId>org.igniterealtime.smack</groupId>
<artifactId>smack-im</artifactId>
<version>4.3.5</version>
</dependency>
I am getting following error
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:763)
at org.jivesoftware.smackx.caps.EntityCapsManager.generateVerificationString(EntityCapsManager.java:630)
at org.jivesoftware.smackx.caps.EntityCapsManager.updateLocalEntityCaps(EntityCapsManager.java:526)
at org.jivesoftware.smackx.caps.EntityCapsManager.<init>(EntityCapsManager.java:347)
at org.jivesoftware.smackx.caps.EntityCapsManager.getInstanceFor(EntityCapsManager.java:419)
at org.jivesoftware.smackx.caps.EntityCapsManager$1.connectionCreated(EntityCapsManager.java:123)
at org.jivesoftware.smack.AbstractXMPPConnection.<init>(AbstractXMPPConnection.java:363)
at org.jivesoftware.smack.tcp.XMPPTCPConnection.<init>(XMPPTCPConnection.java:324)