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  1. ,
    via Stack Overflow by ERJAN

    This exception occurs when using an older version of java. Mainly when trying to run a jar compiled with a newer Java version in an older Java version. We can avoid this issue by executing the jar in the same version which it was compiled.

  2. ,
    via Google Groups by Marcus Haebler

    Update "latest" to Java 8 on DockerHub.

Solutions on the web

via Oracle Community by HardikGupta, 1 year ago
com/openmarket/genrules/rule209/rule663/RuleClass1343224994145 : Unsupported major.minor version 51.0
via Stack Overflow by Gaurav Agarwal
, 2 years ago
com/rapidqualitysystems/coderocket/views/EclipseFlowchartEditor : Unsupported major.minor version 51.0
via talendforge.org by Unknown author, 2 years ago
via csdn.net by Unknown author, 2 years ago
org/apache/maven/cli/MavenCli : Unsupported major.minor version 51.0
via Oracle Community by AJay B, 1 year ago
com/oracle/ovm/mgr/client/OvmWsh : Unsupported major.minor version 51.0
java.lang.UnsupportedClassVersionError: com/openmarket/genrules/rule209/rule663/RuleClass1343224994145 : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) at java.lang.ClassLoader.defineClass(ClassLoader.java:615) at com.openmarket.visitor.rule.RuleClassHash$RuleLoader.loadClass(RuleClassHash.java:216) at com.openmarket.visitor.rule.RuleClassHash.loadRuleClass(RuleClassHash.java:95) at com.openmarket.visitor.rule.RuleClassFactory.loadRuleClass(RuleClassFactory.java:23) at com.openmarket.visitor.rule.RuleManager.loadRuleSet(RuleManager.java:790) at com.openmarket.visitor.rule.RuleManager.getRulesetClasses(RuleManager.java:985) at com.openmarket.visitor.objects.VisitorContext.addRulesets(VisitorContext.java:550) at com.openmarket.gator.commercecontext.CommerceContext.LoadRulesets(CommerceContext.java:315) at com.openmarket.gator.commercecontext.CommerceContext.setupEffectiveSegments(CommerceContext.java:478) at com.openmarket.gator.commercecontext.CommerceContext.setupEffectiveSegments(CommerceContext.java:428) at com.openmarket.gator.seed.CommerceContext.worker(CommerceContext.java:133) at com.openmarket.basic.seed.BaseSeed.doEndTag(BaseSeed.java:132) at com.openmarket.framework.jsp.Base.doEndTag(Base.java:143) at org.apache.jsp.jsp.cs_005fdeployed.Utilities.Visitors.Actions.LoginRememberMeAction_jsp._jspx_meth_commercecontext_005fcalculatesegments_005f0(LoginRememberMeAction_jsp.java:616) at org.apache.jsp.jsp.cs_005fdeployed.Utilities.Visitors.Actions.LoginRememberMeAction_jsp._jspService(LoginRememberMeAction_jsp.java:377) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:605) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:544)