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org.apache.http.client.ClientProtocolException at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:188) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:106) at com.siva.demo.HttpProxyClient.main(HttpProxyClient.java:65)Caused by: org.apache.http.HttpException: Proxy chains are not supported. at org.apache.http.impl.execchain.MainClientExec.createTunnelToProxy(MainClientExec.java:526) at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:391) at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:218) at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:194) at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:85) at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108) at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:186) ... 3 more