java.lang.NoSuchFieldError: INSTANCE

GitHub | angelo337 | 8 months ago
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  1. 0

    Exception in thread "main" java.lang.NoSuchFieldError: INSTANCE

    Stack Overflow | 10 months ago | Chuchoo
    java.lang.NoSuchFieldError: INSTANCE
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  3. 0

    I am trying to write a simple WebService Testing using HTTPClient. I have all my jars loaded up but get the above error message. I am getting the above error stacktrace. {|borderStyle=solid} package HTTPClientTest; import; import org.apache.http.HttpResponse; import org.apache.http.HttpStatus; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpUriRequest; import org.apache.http.impl.client.HttpClientBuilder; import org.junit.Assert; public class RESTTester { public static void main (String args[]) { String restURL_XML = ""; try { testStatusCode(restURL_XML); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } public static void testStatusCode(String restURL) throws ClientProtocolException, IOException { HttpUriRequest request = new HttpGet(restURL); HttpResponse httpResponse = HttpClientBuilder.create().build().execute(request); Assert.assertEquals(httpResponse.getStatusLine().getStatusCode(),HttpStatus.SC_OK); } } {code} {code} Exception in thread "main" java.lang.NoSuchFieldError: INSTANCE at org.apache.http.conn.ssl.SSLConnectionSocketFactory.<clinit>( at at HTTPClientTest.RESTTester.testStatusCode( at HTTPClientTest.RESTTester.main( {code}

    Apache's JIRA Issue Tracker | 10 months ago | Sugat Sapkota
    java.lang.NoSuchFieldError: INSTANCE
  4. 0

    NoSuchFieldError: INSTANCE] with root cause

    GitHub | 2 years ago | johnanthony3
    java.lang.NoSuchFieldError: INSTANCE

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    Root Cause Analysis

    1. java.lang.NoSuchFieldError


      at org.apache.http.conn.ssl.SSLConnectionSocketFactory.<clinit>()
    2. Apache HttpClient
      1. org.apache.http.conn.ssl.SSLConnectionSocketFactory.<clinit>(
      2 frames
    3. com.norconex.collector
      1. com.norconex.collector.http.client.impl.GenericHttpClientFactory.createHTTPClient(
      2. com.norconex.collector.http.crawler.HttpCrawler.initializeHTTPClient(
      3. com.norconex.collector.http.crawler.HttpCrawler.prepareExecution(
      4. com.norconex.collector.core.crawler.AbstractCrawler.doExecute(
      5. com.norconex.collector.core.crawler.AbstractCrawler.startExecution(
      5 frames
    4. com.norconex.jef4
      1. com.norconex.jef4.job.AbstractResumableJob.execute(
      2. com.norconex.jef4.suite.JobSuite.runJob(
      3. com.norconex.jef4.suite.JobSuite.doExecute(
      4. com.norconex.jef4.suite.JobSuite.execute(
      4 frames
    5. com.norconex.collector
      1. com.norconex.collector.core.AbstractCollector.start(
      2. com.norconex.collector.core.AbstractCollectorLauncher.launch(
      3. com.norconex.collector.http.HttpCollector.main(
      3 frames