stack deflicker

[Senorelegans]

I am trying to get stack_deflicker to work in fiji. I get this message

Compiling 1 file in /var/folders/7y/6t747tm90pn405r3kmt_s66m0000gn/T/java5787754501609147081
/var/folders/7y/6t747tm90pn405r3kmt_s66m0000gn/T/java5787754501609147081/src/main/java/Stack_Deflicker.java:20: cannot access java.lang.Object
bad class file: ZipFileIndexFileObject[/Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Object.class)]
class file has wrong version 52.0, should be 50.0
Please remove or make sure it appears in the correct subdirectory of the classpath.
public class Stack_Deflicker implements PlugInFilter {
       ^
org.scijava.minimaven.JavaCompiler$CompileError: Compile error: 1
        at org.scijava.minimaven.JavaCompiler.call(JavaCompiler.java:80)
        at org.scijava.minimaven.MavenProject.build(MavenProject.java:477)
        at org.scijava.minimaven.MavenProject.build(MavenProject.java:406)
        at org.scijava.minimaven.MavenProject.build(MavenProject.java:391)
        at org.scijava.plugins.scripting.java.JavaEngine.compile(JavaEngine.java:211)
        at org.scijava.plugins.scripting.java.JavaEngine.eval(JavaEngine.java:135)
        at org.scijava.plugins.scripting.java.JavaEngine.eval(JavaEngine.java:173)
        at org.scijava.script.ScriptModule.run(ScriptModule.java:174)
        at org.scijava.module.ModuleRunner.run(ModuleRunner.java:167)
        at org.scijava.module.ModuleRunner.call(ModuleRunner.java:126)
        at org.scijava.module.ModuleRunner.call(ModuleRunner.java:65)
        at org.scijava.thread.DefaultThreadService$2.call(DefaultThreadService.java:191)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)



It shows up as a plugin and I have tryed putting it in the plugins, the stacks folder, and the plugin folder by itself after it did not work when I installed it with the wrmtrck folder.

I am moving the stack_deflicker.class and stack_deflicker.java together