Fixed an issue with persisting an Image and ImageHashDTO. Still encountering issues with "Nested Transactions Not Supported" when looking up images. Could be concurrent related, but likely the transactions aren't being closed properly on lookups, or the like.

src/main/java/com/sothr/imagetools/App.java

@@ -75,7 +75,7 @@ public class App extends Application
     @Override
     public void stop() throws Exception {
         logger.info("Image-Tools is shutting down");
-        AppConfig.saveProperties();
+        AppConfig.shutdown();
         super.stop();
     }
 }

src/main/java/com/sothr/imagetools/AppCLI.java

@@ -26,7 +26,7 @@ class AppCLI {
       CommandLineParser parser = new BasicParser();
       CommandLine cmd = parser.parse(options, args);
       process(cmd);
-      AppConfig.saveProperties();
+      AppConfig.shutdown();
       System.exit(0);
     }  catch (Exception ex) {
       logger.error("Unhandled exception in AppCLI",ex);

src/main/java/com/sothr/imagetools/AppConfig.java

@@ -1,5 +1,6 @@
 package com.sothr.imagetools;
 
+import com.sothr.imagetools.dao.HibernateUtil;
 import com.sothr.imagetools.util.ResourceLoader;
 import com.sothr.imagetools.util.PropertiesService;
 import com.sothr.imagetools.util.PropertiesEnum;
@@ -109,6 +110,11 @@ public class AppConfig {
     }
   }
 
+  public static void shutdown() {
+    saveProperties();
+    HibernateUtil.getSessionFactory().close();
+  }
+
   public static void saveProperties() {
     PropertiesService.saveConf(USERPROPERTIESFILE);
     logger.debug("Saved properties");

src/main/resources/hibernate/Image.hbm.xml

@@ -11,6 +11,6 @@
     <property name="thumbnailPath" column="thumbnail_path" type="string"/>
     <property name="width" column="width" type="int"/>
     <property name="height" column="height" type="int"/>
-    <one-to-one name="hashes"  class="com.sothr.imagetools.dto.ImageHashDTO"/>
+    <one-to-one name="hashes" class="com.sothr.imagetools.dto.ImageHashDTO" cascade="save-update, delete"/>
   </class>
 </hibernate-mapping>

src/test/resources/hibernate/Image.hbm.xml

@@ -11,6 +11,6 @@
     <property name="thumbnailPath" column="thumbnail_path" type="string"/>
     <property name="width" column="width" type="int"/>
     <property name="height" column="height" type="int"/>
-    <one-to-one name="hashes"  class="com.sothr.imagetools.dto.ImageHashDTO"/>
+    <one-to-one name="hashes" class="com.sothr.imagetools.dto.ImageHashDTO" cascade="save-update, delete"/>
   </class>
 </hibernate-mapping>