title: Intellij - 15 NotNull Instrumentation errors for code that has been inspected when nothing suspicious is found
body: <p>I have a little app I started putting together under Intellij-14.  It compiled and ran there.  When I updated to 15, I started getting NotNull Instrumentation errors for all of the classes.  The error message simply states that the class failed -- there is no indication of a specific method, member, or variable.  I have add annotations to the project library and changed the compile options to point to them.  I have run "infer nullity" and "run inspection by name" trying to find out where I have gone wrong to no avail. Since this is my first attempt at using GUI elements, I am probably making some very basic mistakes. For example:</p>
  
  <p>public class lguiException extends Exception {</p>
  
  <pre><code>private String msg = " ";
  
  public String GetLearnGUIMsg(){
          return(msg);
  }
  
  public void SetLearnGUIMsg(String instr){
          msg = instr;
      }
  
  public void HandleLearnGUIExceps(){
  
      System.out.println(msg);
  }
  </code></pre>
  
  <p>}</p>
  
  <p>produces the error:</p>
  
  <p>Error:NotNull instrumentation: @NotNull instrumentation failed  for lguiException.java: com.intellij.compiler.notNullVerification.NotNullVerifyingInstrumenter.processClassFile(Lorg/jetbrains/org/objectweb/asm/ClassReader;Lorg/jetbrains/org/objectweb/asm/ClassVisitor;)Z</p>
  
  <p>The infer nullity preview says there is nothing to be annotated here and the code inspection comes up clean.  So where do I start?</p>