fix(gui): add default contructor for classes serialized with GSON (#752)

jadx-gui/src/main/java/jadx/gui/settings/JadxProject.java

@@ -38,10 +38,18 @@ public class JadxProject {
 
 	private int projectVersion = 0;
 
+	// Don't remove. Used in json serialization
+	public JadxProject() {
+	}
+
 	public JadxProject(JadxSettings settings) {
 		this.settings = settings;
 	}
 
+	public void setSettings(JadxSettings settings) {
+		this.settings = settings;
+	}
+
 	public Path getProjectPath() {
 		return projectPath;
 	}

jadx-gui/src/main/java/jadx/gui/settings/JadxSettingsAdapter.java

@@ -54,8 +54,8 @@ public class JadxSettingsAdapter {
 	}
 
 	public static JadxSettings load() {
+		String jsonSettings = PREFS.get(JADX_GUI_KEY, "");
 		try {
-			String jsonSettings = PREFS.get(JADX_GUI_KEY, "");
 			JadxSettings settings = fromString(jsonSettings);
 			if (settings == null) {
 				LOG.debug("Created new settings.");
@@ -68,7 +68,7 @@ public class JadxSettingsAdapter {
 			}
 			return settings;
 		} catch (Exception e) {
-			LOG.error("Error load settings", e);
+			LOG.error("Error load settings. Settings will reset.\n Loaded json string: {}", jsonSettings, e);
 			return new JadxSettings();
 		}
 	}

jadx-gui/src/main/java/jadx/gui/settings/WindowLocation.java

@@ -3,10 +3,12 @@ package jadx.gui.settings;
 import java.awt.*;
 
 public class WindowLocation {
+	private String windowId;
+	private Rectangle bounds;
 
-	private final String windowId;
-
-	private final Rectangle bounds;
+	// Don't remove. Used in json serialization
+	public WindowLocation() {
+	}
 
 	public WindowLocation(String windowId, Rectangle bounds) {
 		this.windowId = windowId;
@@ -17,10 +19,18 @@ public class WindowLocation {
 		return windowId;
 	}
 
+	public void setWindowId(String windowId) {
+		this.windowId = windowId;
+	}
+
 	public Rectangle getBounds() {
 		return bounds;
 	}
 
+	public void setBounds(Rectangle bounds) {
+		this.bounds = bounds;
+	}
+
 	@Override
 	public String toString() {
 		return "WindowLocation{"

jadx-gui/src/main/java/jadx/gui/utils/LangLocale.java

@@ -3,7 +3,11 @@ package jadx.gui.utils;
 import java.util.Locale;
 
 public class LangLocale {
-	private final Locale locale;
+	private Locale locale;
+
+	// Don't remove. Used in json serialization
+	public LangLocale() {
+	}
 
 	public LangLocale(Locale locale) {
 		this.locale = locale;
@@ -17,6 +21,14 @@ public class LangLocale {
 		return locale;
 	}
 
+	public Locale getLocale() {
+		return locale;
+	}
+
+	public void setLocale(Locale locale) {
+		this.locale = locale;
+	}
+
 	@Override
 	public String toString() {
 		return NLS.str("language.name", this);