A DESCRIPTION OF THE PROBLEM :
See java.lang.Class.getTypeName():
    public String getTypeName() {
        if (isArray()) {
            try {
                Class<?> cl = this;
                int dimensions = 0;
                do {
                    dimensions++;
                    cl = cl.getComponentType();
                } while (cl.isArray());
                return cl.getName() + "[]".repeat(dimensions);
            } catch (Throwable e) { /*FALLTHRU*/ }
        }
        return getName();
    }

This should probably be removed because it might hide serious problems with the JVM. It appears this originates from java.lang.reflect.Field.getTypeName(Class<?>), from where it was moved by JDK-6298888.