unsupported-class-version

This question already has an answer here: How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version 48 answers org.apache.catalina.core.ContainerBase addChildInternal SEVERE: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/CollegeWebsite]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase

I have a Maven Eclipse application which I'm trying to run through the command prompt using the following command: java -cp target/classes;"target/dependency/*" com.example.Main Unfortunately, it throws an error: UnsupportedClassVersionError : unsupported major.minor version 51.0 I did some digging and found out it has something to do with the application being compiled on a JDK of a newer version, than the JRE it runs on. Apparently the 51 means it was built for 1.7, but I don't have a JDK 7 on my computer... So I made sure that everything is set to version 1.6 : system.properties file in the

I have deployed a WAR file in the webapps folder in my tomcat . And when I am starting my tomcat, like below C:\apache-tomcat-6.0.35\bin>startup.bat Using CATALINA_BASE: "C:\apache-tomcat-6.0.35" Using CATALINA_HOME: "C:\apache-tomcat-6.0.35" Using CATALINA_TMPDIR: "C:\apache-tomcat-6.0.35\temp" Using JRE_HOME: "C:\Program Files (x86)\IBM\RationalSDLC\Common\Java5.0\jre" Using CLASSPATH: "C:\apache-tomcat-6.0.35\bin\bootstrap.jar" I am getting this below exception- SEVERE: Error deploying web application archive DirectoryServer.war java.lang.UnsupportedClassVersionError: (com/services/rest

Possible Duplicate: unsupported major .minor version 51.0 I made this script, and it gives me this error: java.lang.UnsupportedClassVersionError: net/glitching/client : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) 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$000(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java

I recently uninstalled Java 8, to use Java 6 as I want my code/creations to be usable by more people than just those on Java 8. When I do mvn - version it returns: Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/maven/cli/MavenCli : 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

This question already has an answer here: How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version 48 answers When I ran a java program I received this error.. Could you please suggest why do we get this error: Exception in thread "main" java.lang.UnsupportedClassVersionError: GenerateInvoice (Unsupported major.minor version 49.0) at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:539) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123) at java.net.URLClassLoader.defineClass(URLClassLoader

I installed maven by following this steps:(a tutorial) JAVA_HOME=/Library/Java/Home export M2_HOME=/Users/steven/zimmermann/maven export M2=$M2_HOME/bin export PATH=$M2:$PATH echo $JAVA_HOME echo $M2_HOME echo $M2 echo $PATH nano .bash_profile then I wrote the echo in the .bash_profile sth like this: JAVA_HOME=/usr/libexec/java_home M2_HOME=/path/to/your/apache-maven-3.x.x M2=/path/to/your/apache-maven-3.x.x/bin PATH=/path/to/maven/bin:/$….bla-bla-bla… and also I wrote this in the .bashrc export M2_HOME=/Users/steven/zimmermann/maven export M2=$M2_HOME/bin export PATH=$M2:$PATH now when I want