Error 500--Internal Server Error

[sstglobal]

Hello everyone,

I encountered an issue when trying to access host:/wls-exporter/metrics.

Here is the log that I found on the server. Does anyone else have a similar issue and know how to fix it? Please help me. Many thanks in advance!

####<May 6, 2024 1:07:19,146 PM EEST> <Error> <HTTP> <ubtest> <AdminServer> <[ACTIVE] ExecuteThread: '31' for queue: 'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <> <4d31f96a-5eb7-4f0c-8404-9d3881784452-00000092> <1714990039146> <[severity-value: 8] [rid: 0] [partition-id: 0] [partition-name: DOMAIN] > <BEA-101017> <[ServletContext@539231249[app:wls-exporter module:wls-exporter.war path:null spec-version:3.1]] Root cause of ServletException. java.lang.NoClassDefFoundError: Could not initialize class org.apache.http.conn.ssl.SSLConnectionSocketFactory at com.oracle.wls.exporter.WebClientImpl$SelfSignedCertificateAcceptor.createSSLConnectionSocketFactory(WebClientImpl.java:198) at com.oracle.wls.exporter.WebClientImpl$SelfSignedCertificateAcceptor.<init>(WebClientImpl.java:185) at com.oracle.wls.exporter.WebClientImpl$ApacheHttpClient.<init>(WebClientImpl.java:140) at com.oracle.wls.exporter.WebClientImpl.createClientExec(WebClientImpl.java:134) at com.oracle.wls.exporter.WebClientCommon.sendRequest(WebClientCommon.java:132) at com.oracle.wls.exporter.WebClientCommon.doPostRequest(WebClientCommon.java:121) at com.oracle.wls.exporter.ExporterCall.requestMetrics(ExporterCall.java:95) at com.oracle.wls.exporter.ExporterCall.getMetrics(ExporterCall.java:85) at com.oracle.wls.exporter.ExporterCall.displayMetrics(ExporterCall.java:51) at com.oracle.wls.exporter.ExporterCall.displayMetrics(ExporterCall.java:41) at com.oracle.wls.exporter.ExporterCall.invoke(ExporterCall.java:33) at com.oracle.wls.exporter.AuthenticatedCall.performRequest(AuthenticatedCall.java:188) at com.oracle.wls.exporter.AuthenticatedCall.doWithAuthentication(AuthenticatedCall.java:144) at com.oracle.wls.exporter.webapp.ExporterServlet.doGet(ExporterServlet.java:47) at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:286) at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:260) at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:137) at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:350) at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:247) at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3697) at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3667) at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:326) at weblogic.security.service.SecurityManager.runAsForUserCode(SecurityManager.java:197) at weblogic.servlet.provider.WlsSecurityProvider.runAsForUserCode(WlsSecurityProvider.java:203) at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:71) at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2443) at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2291) at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2269) at weblogic.servlet.internal.ServletRequestImpl.runInternal(ServletRequestImpl.java:1703) at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1663) at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:272) at weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:352) at weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:337) at weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:57) at weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41) at weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:644) at weblogic.work.ExecuteThread.execute(ExecuteThread.java:415) at weblogic.work.ExecuteThread.run(ExecuteThread.java:355)

[lennyphan]

@sstglobal Have not seen the issue. Can you provide information on how to replicate it? Can you verify what version of Apache HttpClient is on the server's Classpath? I'm wondering if there is some conflict if there are multiple different versions available.