obj.equals( obj ) returns false

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import javax.tools.*;

public class Test {

    static void checkReflexivity( Object obj ){
        System.out.print( obj.getClass().getSuperclass().getName() );
        boolean equals = obj.equals( obj );
        System.out.println( equals ? " is reflexive" : " is not reflexive" );
    }

    public static void main( String[] args ){
        Object wrapper;

        wrapper = new WrapperJavaFileManager( ToolProvider.getSystemJavaCompilerTool().
                                                        getStandardFileManager(null) ) {};
        checkReflexivity( wrapper );

        wrapper = new WrapperJavaFileObject(
                        new SimpleJavaFileObject( java.net.URI.create("file:///name"),
                                                        JavaFileObject.Kind.OTHER ){} ) {};
        checkReflexivity( wrapper );
    }
}
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output:
javax.tools.WrapperJavaFileManager is not reflexive
javax.tools.WrapperJavaFileObject is not reflexive