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From "Ralph Carlson (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HTTPCLIENT-1739) repeated calls to HttpClients.custom.build take longer over time
Date Mon, 25 Apr 2016 18:24:12 GMT
Ralph Carlson created HTTPCLIENT-1739:

             Summary: repeated calls to HttpClients.custom.build take longer over time
                 Key: HTTPCLIENT-1739
                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1739
             Project: HttpComponents HttpClient
          Issue Type: Bug
          Components: HttpClient
    Affects Versions: 4.5.2
         Environment: windows xp 32 bit, windows 7 64 bit and RedHat enterprise 7. Tested
on Web Server apache-tomee-plus-1.7.1/apache-tomee-plus-1.7.4 deployed as @Webservice's calling
external webservices using httpclient
            Reporter: Ralph Carlson
            Priority: Minor

(Tested on latest version and version 4.3 and both have same issue.)
repeated calls to HttpClients.custom.build take longer over time. Tested using http library
in webservice that calls and outside webservice. Initially HttpClients.custom.build run quickly
for first several hundred, then takes increasingly longer to create client despite all objects
clean up as per api spec each request. Some cache or code in the api takes longer and longer
to create the client and no api methods exposed that can change this, only solution now was
to create a Map to cache HttpClients so not creating new ones and look up HttpClient you need
based on input parameters. 

sample code that when called over and over again creates the issue:
    protected static CloseableHttpClient _getCloseableHttpClient(HttpClientToolsInput input)
throws Exception
    {	//method
	         //--------------- you can cache these object as static final since never change
and still get the same result , included here as example code for bug
			SSLContextBuilder sslContextBuilder = SSLContexts.custom();    
			sslContextBuilder.loadTrustMaterial(null, new TrustStrategy() 
					public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException
{ return true; }	
					@Override	public boolean isTrusted(java.security.cert.X509Certificate[] chain,String
authType) throws CertificateException { return true; }
			SSLContext sslContext = sslContextBuilder.build();	
			SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(
sslContext, new String[] {"TLSv1", "TLSv1.1", "TLSv1.2"},null,new HostnameVerifier()
			            public void verify(String host, X509Certificate cert) throws SSLException {
			            @Override public boolean verify(String s, SSLSession sslSession) { 
return true; 
			Registry<ConnectionSocketFactory> socketFactoryRegistry = 
			                           RegistryBuilder.<ConnectionSocketFactory> create().register("http",
PlainConnectionSocketFactory.INSTANCE).register("https", sslConnectionSocketFactory).build();
			SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContextBuilder.build());
    		//--------------- you can cache these object as static final : end
			//---------------  these objects below are created and clean up each request
			BasicHttpClientConnectionManager cm = new BasicHttpClientConnectionManager(socketFactoryRegistry);
            RequestConfig defaultRequestConfig = RequestConfig.custom().setSocketTimeout(
			// ---------------- get same bug if modify code to use different client other than CloseableHttpClient
			// ---------------- the .build() method takes longer and longer to build each cycle
           	CloseableHttpClient httpclient = HttpClients.custom().setConnectionManager(cm)
( new NoopHostnameVerifier() ).build();
				<rest of code to make call - non relevant to bug>
				<cleanup code - non relevant to bug>
	} //method

this HttpClient.customer().build() method should take roughly same amount of time to return
object despite how many objects it created previously, now with enough runs it can take minutes
to return object(s)

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