Synametrics Technologies

Getting an "Internal Server Error" when I try and use the Let's Encrypt feature in b1010. I've posted the log below:

2019-05-29 12:39:49,466 ERROR [/].[FrontController] - Servlet.service() for servlet [FrontController] in context with path [] threw exception [Servlet execution threw an exception] with root cause
java.lang.UnsupportedClassVersionError: org/shredzone/acme4j/exception/AcmeException : Unsupported major.minor version 52.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.access$100(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at com.synametrics.synssl.k.L(SslManager.java:211)
    at com.synametrics.sradef.handler.LetsEncryptHandler.displayTermsForLetsEncrypt(LetsEncryptHandler.java:546)
    at com.synametrics.sradef.handler.LetsEncryptHandler.verifyInput(LetsEncryptHandler.java:1084)
    at com.synametrics.sradef.handler.LetsEncryptHandler.handle(LetsEncryptHandler.java:774)
    at com.synametrics.syncrify.handler.SyncrifyLetsEncryptFacade.dealWithIt(SyncrifyLetsEncryptFacade.java:23)
    at com.synametrics.syncrify.handler.SyncrifyHandler.handle(SyncrifyHandler.java:114)
    at com.synametrics.sradef.servlet.helper.a.L(AdminWorker.java:314)
    at com.synametrics.sradef.servlet.FrontController.handleRequest(FrontController.java:145)
    at com.synametrics.sradef.servlet.FrontController.doPost(FrontController.java:64)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at com.synametrics.syncrify.bean.WebFilter.doFilter(WebFilter.java:49)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at com.synametrics.sradef.filter.SynCsrfPreventionFilter.doFilter(SynCsrfPreventionFilter.java:277)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:798)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:808)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)

Nathan,

You run into this error if you're using an older version of JRE. Visit https://web.synametrics.com/update-jre.htm to update your JRE.

Looks like that did the trick. Thanks for the quick response!