httpclient - Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/http/impl/client/HttpClientBuilder -


i using httpclient components apache following simple program , see below exception:

severe: servlet.service() servlet [dispatcherservlet] in context path [] threw exception [handler processing failed; nested exception java.lang.noclassdeffounderror: org/apache/http/impl/client/httpclientbuilder] root cause java.lang.classnotfoundexception: org.apache.http.impl.client.httpclientbuilder     @ java.net.urlclassloader.findclass(urlclassloader.java:381)     @ java.lang.classloader.loadclass(classloader.java:424)     @ sun.misc.launcher$appclassloader.loadclass(launcher.java:335)     @ java.lang.classloader.loadclass(classloader.java:357)     @      @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:617)     @ org.apache.tomcat.util.threads.taskthread$wrappingrunnable.run(taskthread.java:61)     @ java.lang.thread.run(thread.java:748)

my code:

public node maketree(node n, tokenizebydictionary tokenizebydictionary,list<symbolgroup> sglist, hashtable<string, maker> makers) throws ioexception {            httpclient client = httpclientbuilder.create().build();         for(symbolgroup s:sglist){             if(s.type.equalsignorecase("symbol")){                    pattern(n,s.pattern,s.name, makers.get(s.name));                   }             else if(s.type.equalsignorecase("heading"))                 {                     tokenizewithheadings(n, tokenizebydictionary);                 }             else if(s.type.equalsignorecase("dictionary"))             {                 tokenizewithdictionary(n, tokenizebydictionary);             }             else if(s.type.equalsignorecase("tags"))             {                 tokenizewithtags(n, tokenizebydictionary);             }             else if(s.type.equalsignorecase("nlp"))             {                 //httpclient client = new defaulthttpclient();                 tokenizeusingnlpoutput(n, client);             }            }

i using

  • httpclient-4.5.3 maven dependency

any ideas?


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