Fix plugin settings not updating

Add test to ensure equals/hashCode contains all settings.

gong-notifier-base/src/main/java/ch/adnovum/gong/notifier/PluginSettingsBase.java

@@ -101,7 +101,10 @@ public boolean equals(Object o) {
 		if (getRestUser() != null ? !getRestUser().equals(that.getRestUser()) : that.getRestUser() != null) {
 			return false;
 		}
-		return getRestPassword() != null ? getRestPassword().equals(that.getRestPassword()) : that.getRestPassword() == null;
+		if (getRestPassword() != null ? !getRestPassword().equals(that.getRestPassword()) : that.getRestPassword() != null) {
+			return false;
+		}
+		return getDefaultEvents() != null ? getDefaultEvents().equals(that.getDefaultEvents()) : that.getDefaultEvents() == null;
 	}
 
 	@Override
@@ -110,6 +113,7 @@ public int hashCode() {
 		result = 31 * result + (getServerDisplayUrl() != null ? getServerDisplayUrl().hashCode() : 0);
 		result = 31 * result + (getRestUser() != null ? getRestUser().hashCode() : 0);
 		result = 31 * result + (getRestPassword() != null ? getRestPassword().hashCode() : 0);
+		result = 31 * result + (getDefaultEvents() != null ? getDefaultEvents().hashCode() : 0);
 		return result;
 	}
 }

gong-notifier-email/src/test/java/ch/adnovum/gong/notifier/email/PluginSettingsTest.java

@@ -0,0 +1,57 @@
+package ch.adnovum.gong.notifier.email;
+
+import java.lang.reflect.Method;
+import java.util.Arrays;
+import java.util.stream.Stream;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class PluginSettingsTest {
+
+	/**
+	 * It's important that changes in the settings can be detected so the plugin can reinitialize itself.
+	 */
+	@Test
+	public void shouldCheckAllFieldsInEqualsAndHashCode() throws Exception {
+		PluginSettings base = new PluginSettings();
+
+		setters(PluginSettings.class).forEach(m -> {
+			PluginSettings settings = new PluginSettings();
+			Class<?> paramType = m.getParameterTypes()[0];
+			try {
+				m.invoke(settings, createValue(paramType));
+			}
+			catch (Exception e) {
+				e.printStackTrace();
+				Assert.fail("Could not change plugin settings");
+			}
+
+			if (base.equals(settings)) {
+				Assert.fail("The equals method does not appear to use the field for setter " + m.getName());
+			}
+			if (base.hashCode() == settings.hashCode()) {
+				Assert.fail("The hashCode method does not appear to use the field for setter " + m.getName());
+			}
+		});
+	}
+
+	private static Stream<Method> setters(Class<?> clazz) {
+		Method[] methods = clazz.getMethods();
+		return Arrays.stream(methods)
+				.filter(m -> m.getName().startsWith("set"));
+	}
+
+	@SuppressWarnings("unchecked")
+	private static <T> T createValue(Class<T> type) {
+		if (type.equals(String.class)) {
+			return (T) "str";
+		}
+		else if (type.equals(Integer.class)) {
+			return (T) Integer.valueOf(77);
+		}
+		else {
+			throw new UnsupportedOperationException("Unsupported param type " + type);
+		}
+	}
+}