title: ClassNotFoundException: javax.annotation.Generated with JDK 11
body: <p>I created a JavaFX Ant project in Apache Netbeans 12.0 with the JDK 11 from bellsoft. Then i created a database connection with an sqlite database, which is a file on my pc. In this database are two tables.</p>
  <p>I clicked right on the project and selected &quot;New-&gt;Entity Classes from Database...&quot;, then i created the two classes from the tables. Now i want to clean and build the project, but i get this error.</p>
  <p>Does anybody know how to solve this problem? Is it because of the jdk?</p>
  <pre><code>Consult the following stack trace for details.
  java.lang.NoClassDefFoundError: javax/annotation/Generated
      at org.eclipse.persistence.internal.jpa.modelgen.MetadataMirrorFactory.setEnvironments(MetadataMirrorFactory.java:327)
      at org.eclipse.persistence.internal.jpa.modelgen.CanonicalModelProcessor.process(CanonicalModelProcessor.java:368)
      at com.sun.tools.javac.processing.JavacProcessingEnvironment.callProcessor(JavacProcessingEnvironment.java:980)
      at com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:896)
      at com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.run(JavacProcessingEnvironment.java:1222)
      at com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1334)
      at com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1258)
      at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:936)
      at com.sun.tools.javac.main.Main.compile(Main.java:311)
      at com.sun.tools.javac.main.Main.compile(Main.java:170)
      at com.sun.tools.javac.Main.compile(Main.java:57)
      at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.base/java.lang.reflect.Method.invoke(Method.java:566)
      at org.apache.tools.ant.taskdefs.compilers.Javac13.execute(Javac13.java:57)
      at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1404)
      at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:1133)
      at org.netbeans.modules.java.source.ant.JavacTask.execute(JavacTask.java:120)
      at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
      at jdk.internal.reflect.GeneratedMethodAccessor69.invoke(Unknown Source)
      at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.base/java.lang.reflect.Method.invoke(Method.java:566)
      at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
      at org.apache.tools.ant.Task.perform(Task.java:350)
      at java.base/java.util.Vector.forEach(Vector.java:1388)
      at org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:67)
      at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
      at jdk.internal.reflect.GeneratedMethodAccessor69.invoke(Unknown Source)
      at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.base/java.lang.reflect.Method.invoke(Method.java:566)
      at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
      at org.apache.tools.ant.Task.perform(Task.java:350)
      at org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:391)
      at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
      at jdk.internal.reflect.GeneratedMethodAccessor69.invoke(Unknown Source)
      at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.base/java.lang.reflect.Method.invoke(Method.java:566)
      at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
      at org.apache.tools.ant.Task.perform(Task.java:350)
      at org.apache.tools.ant.Target.execute(Target.java:449)
      at org.apache.tools.ant.Target.performTasks(Target.java:470)
      at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1388)
      at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:36)
      at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
      at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:437)
      at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
      at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
      at jdk.internal.reflect.GeneratedMethodAccessor69.invoke(Unknown Source)
      at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.base/java.lang.reflect.Method.invoke(Method.java:566)
      at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
      at org.apache.tools.ant.Task.perform(Task.java:350)
      at org.apache.tools.ant.Target.execute(Target.java:449)
      at org.apache.tools.ant.Target.performTasks(Target.java:470)
      at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1388)
      at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:36)
      at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
      at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:437)
      at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
      at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
      at jdk.internal.reflect.GeneratedMethodAccessor69.invoke(Unknown Source)
      at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.base/java.lang.reflect.Method.invoke(Method.java:566)
      at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
      at org.apache.tools.ant.Task.perform(Task.java:350)
      at org.apache.tools.ant.Target.execute(Target.java:449)
      at org.apache.tools.ant.Target.performTasks(Target.java:470)
      at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1388)
      at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:36)
      at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
      at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:437)
      at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
      at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
      at jdk.internal.reflect.GeneratedMethodAccessor69.invoke(Unknown Source)
      at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.base/java.lang.reflect.Method.invoke(Method.java:566)
      at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
      at org.apache.tools.ant.Task.perform(Task.java:350)
      at org.apache.tools.ant.Target.execute(Target.java:449)
      at org.apache.tools.ant.Target.performTasks(Target.java:470)
      at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1388)
      at org.apache.tools.ant.Project.executeTarget(Project.java:1361)
      at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
      at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
      at org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:261)
      at org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:574)
      at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:128)
  Caused by: java.lang.ClassNotFoundException: javax.annotation.Generated
      at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:471)
      at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589)
      at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
      ... 88 more
  BUILD FAILED (total time: 1 second)
  
  
    [1]: https://i.stack.imgur.com/V9zor.png
  </code></pre>