eclipse - Java XMPP clint with smack 4.1 NoClassDefFoundError: -


i trying write xmpp clint using smack 4.1.1. have added smack jar files build path. using eclipse ide write code.

however, when trying run application noclassdeffounderrors. fixed of these errors adding xpp3, jxmpp , minidns jar files build path. yet, getting following error.

exception in thread "main" java.lang.noclassdeffounderror: org/jxmpp/util/cache/expirationcache @ org.jivesoftware.smack.util.dns.minidns.minidnsresolver.<clinit>(minidnsresolver.java:46) @ java.lang.class.forname0(native method) @ java.lang.class.forname(class.java:274) @ org.jivesoftware.smack.smackinitialization.loadsmackclass(smackinitialization.java:213) @ org.jivesoftware.smack.smackinitialization.parseclassestoload(smackinitialization.java:193) @ org.jivesoftware.smack.smackinitialization.processconfigfile(smackinitialization.java:163) @ org.jivesoftware.smack.smackinitialization.processconfigfile(smackinitialization.java:148) @ org.jivesoftware.smack.smackinitialization.<clinit>(smackinitialization.java:116) @ org.jivesoftware.smack.smackconfiguration.getversion(smackconfiguration.java:96) @ org.jivesoftware.smack.connectionconfiguration.<clinit>(connectionconfiguration.java:38) @ jabbersmackapi.login(jabbersmackapi.java:29) @ jabbersmackapi.main(jabbersmackapi.java:76) caused by: java.lang.classnotfoundexception: org.jxmpp.util.cache.expirationcache     @ java.net.urlclassloader$1.run(urlclassloader.java:366)     @ java.net.urlclassloader$1.run(urlclassloader.java:355)     @ java.security.accesscontroller.doprivileged(native method)     @ java.net.urlclassloader.findclass(urlclassloader.java:354)     @ java.lang.classloader.loadclass(classloader.java:425)     @ sun.misc.launcher$appclassloader.loadclass(launcher.java:308)     @ java.lang.classloader.loadclass(classloader.java:358)     ... 12 more

how fix issue?

in internet, advised use gradle or maven building same. if so, can me how use same? have never used them before.

as per below stack trace

caused by: java.lang.classnotfoundexception: org.jxmpp.util.cache.expirationcache @ java.net.urlclassloader$1.run(urlclassloader.java:366) @ java.net.urlclassloader$1.run(urlclassloader.java:355) @ java.security.accesscontroller.doprivileged(native method) @ java.net.urlclassloader.findclass(urlclassloader.java:354) @ java.lang.classloader.loadclass(classloader.java:425) @ sun.misc.launcher$appclassloader.loadclass(launcher.java:308) @ java.lang.classloader.loadclass(classloader.java:358)

it seem missing jxmpp-util-cache-0.5.0-alpha2.jar in class path. download , add jar lib/ directory of application .

in internet, advised use gradle or maven building same. if so, can me how use same?

create meven project in eclipse .if new meven project refer

how create java project maven

and add below dependencies pom.xml of meven build project

<dependency>    <groupid>org.igniterealtime.smack</groupid>       <artifactid>smack-java7</artifactid>       <version>4.1.0</version>  </dependency> <dependency>         <groupid>org.igniterealtime.smack</groupid>         <artifactid>smack-tcp</artifactid>         <version>4.1.0</version> </dependency> <dependency>         <groupid>org.igniterealtime.smack</groupid>         <artifactid>smack-im</artifactid>         <version>4.1.0</version> </dependency> <dependency>         <groupid>org.igniterealtime.smack</groupid>         <artifactid>smack-extensions</artifactid>         <version>4.1.0</version> </dependency>

for more details refer link

hope you!!!!

thanks!!!


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