title: UnsupportedClassVersionError Java Error
body: <p>So I was trying to merge two databases using a java app called merjapp to merge sqlite databases, and I get this annoying java error message which I have no idea how to fix even after countless google searches.
  Here it is:</p>
  
  <pre><code>Exception in thread "main" java.lang.UnsupportedClassVersionError: con/merjapp/Merge has been compiled by a more recent version of the Java Runtime &lt;class file version 8243.8224&gt;, this version of the Java Runtime only recognizes class file versions up to 52.0
  
  at java.lang.ClassLoader.defineClass1(Native Method)
  at java.lang.ClassLoader.defineClass(Unknown Source)
  at java.security.SecureClassLoader.defineClass(Unknow n Source)
  at java.net.URLClassLoader.defineClass(Unknown Source)
  at java.net.URLClassLoader.access$100(Unknown Source)
  at http://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 java.lang.ClassLoader.loadClass(Unknown Source)
  at java.lang.Class.forName0(Native Method)
  at java.lang.Class.forName(Unknown Source)
  at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoa der.main(JarRsrcLoader.java:56)*
  </code></pre>
  
  <p>As I said before, I searched for solutions and many sites suggested upgrading the Java versions as to match JDK and JRE versions, but doing this does nothing to help, I also verified that they were the same version.
  I'm new to this so this might be a really easy error but I have no clue
  Anyone know how to solve this?
  Thanks for reading</p>