Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Samebug tips

  1. ,
    via GitHub by Athou

    You're using an older version of java with classes compiled for java7

  2. ,
    via Google Groups by Marcus Haebler

    Update "latest" to Java 8 on DockerHub.

Solutions on the web

via Google Groups by Dennis Foster, 1 year ago
com/allen_sauer/gwt/log/rebind/LogMessageFormatterGenerator : Unsupported major.minor version 51.0
via Google Groups by onroad, 1 year ago
org/apache/tomcat/jni/SSL : Unsupported major.minor version 51.0
via GitHub by AsrielAsItGets
, 1 year ago
com/github/rjeschke/txtmark/Decorator : Unsupported major.minor version 51.0
via GitHub by RGamesGitHub
, 5 months ago
com/github/rjeschke/txtmark/Decorator : Unsupported major.minor version 51.0
via GitHub by RGamesGitHub
, 1 year ago
com/github/rjeschke/txtmark/Decorator : Unsupported major.minor version 51.0
via GitHub by AsrielAsItGets
, 5 months ago
com/github/rjeschke/txtmark/Decorator : Unsupported major.minor version 51.0
java.lang.UnsupportedClassVersionError: com/allen_sauer/gwt/log/rebind/LogMessageFormatterGenerator : 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 java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)	at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)	at java.net.URLClassLoader.access$000(URLClassLoader.java:58)	at java.net.URLClassLoader$1.run(URLClassLoader.java:197)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)	at com.google.gwt.dev.cfg.ModuleDefSchema$ClassAttrCvt.convertToArg(ModuleDefSchema.java:888)	at com.google.gwt.dev.util.xml.HandlerArgs.convertToArg(HandlerArgs.java:64)	at com.google.gwt.dev.util.xml.HandlerMethod.invokeBegin(HandlerMethod.java:221)	at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.startElement(ReflectiveParser.java:294)	at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)	at org.apache.xerces.impl.dtd.XMLDTDValidator.startElement(Unknown Source)	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source)	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)	at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)	at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)	at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.parse(ReflectiveParser.java:347)	at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.access$200(ReflectiveParser.java:68)	at com.google.gwt.dev.util.xml.ReflectiveParser.parse(ReflectiveParser.java:418)	at com.google.gwt.dev.cfg.ModuleDefLoader.nestedLoad(ModuleDefLoader.java:346)	at com.google.gwt.dev.cfg.ModuleDefSchema$BodySchema.__inherits_begin(ModuleDefSchema.java:497)	at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at com.google.gwt.dev.util.xml.HandlerMethod.invokeBegin(HandlerMethod.java:230)	at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.startElement(ReflectiveParser.java:294)	at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)	at org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source)	at org.apache.xerces.impl.dtd.XMLDTDValidator.emptyElement(Unknown Source)	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source)	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)	at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)	at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)	at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.parse(ReflectiveParser.java:347)	at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.access$200(ReflectiveParser.java:68)	at com.google.gwt.dev.util.xml.ReflectiveParser.parse(ReflectiveParser.java:418)	at com.google.gwt.dev.cfg.ModuleDefLoader.nestedLoad(ModuleDefLoader.java:346)	at com.google.gwt.dev.cfg.ModuleDefSchema$BodySchema.__inherits_begin(ModuleDefSchema.java:497)	at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at com.google.gwt.dev.util.xml.HandlerMethod.invokeBegin(HandlerMethod.java:230)	at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.startElement(ReflectiveParser.java:294)	at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)	at org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source)	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source)	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)	at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)	at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)	at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.parse(ReflectiveParser.java:347)	at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.access$200(ReflectiveParser.java:68)	at com.google.gwt.dev.util.xml.ReflectiveParser.parse(ReflectiveParser.java:418)	at com.google.gwt.dev.cfg.ModuleDefLoader.nestedLoad(ModuleDefLoader.java:346)	at com.google.gwt.dev.cfg.ModuleDefLoader.load(ModuleDefLoader.java:267)	at com.google.gwt.dev.cfg.ModuleDefLoader.doLoadModule(ModuleDefLoader.java:210)	at com.google.gwt.dev.cfg.ModuleDefLoader.loadFromResources(ModuleDefLoader.java:170)	at com.google.gwt.dev.codeserver.Recompiler.loadModule(Recompiler.java:214)	at com.google.gwt.dev.codeserver.Recompiler.noCompile(Recompiler.java:146)	at com.google.gwt.dev.codeserver.ModuleState.(ModuleState.java:52)	at com.google.gwt.dev.codeserver.CodeServer.makeModules(CodeServer.java:120)	at com.google.gwt.dev.codeserver.CodeServer.start(CodeServer.java:95)	at com.google.gwt.dev.codeserver.CodeServer.main(CodeServer.java:71)	at com.google.gwt.dev.codeserver.CodeServer.main(CodeServer.java:49)