Fix Scala-generated QueryDSL path classes.

Resolve the static field of the given type inside the specified domain class by considering both the provided Java and Scala object path class names.

Useful for handling of Scala-generated QueryDSL path classes.

Issue: 1392

Author: etrandafir93

src/main/java/org/springframework/data/querydsl/SimpleEntityPathResolver.java

@@ -71,6 +71,7 @@ public <T> EntityPath<T> createPath(Class<T> domainClass) {
 			Class<?> pathClass = ClassUtils.forName(pathClassName, domainClass.getClassLoader());
 
 			return getStaticFieldOfType(pathClass)//
+					.or(() -> getFieldForScalaObject(domainClass, pathClassName))//
 					.map(it -> (EntityPath<T>) ReflectionUtils.getField(it, null))//
 					.orElseThrow(() -> new IllegalStateException(String.format(NO_FIELD_FOUND_TEMPLATE, pathClass)));
 
@@ -80,6 +81,23 @@ public <T> EntityPath<T> createPath(Class<T> domainClass) {
 		}
 	}
 
+	/**
+	 * Resolves the static field of the given type inside the specified domain class.
+	 * Useful for handling Scala-generated QueryDSL path classes.
+	 *
+	 * @param domainClass       The domain class for which the static field needs to be resolved.
+	 * @param javaPathClassName The Java path class name without the "$" suffix.
+	 * @return
+	 */
+	private <T> Optional<Field> getFieldForScalaObject(Class<T> domainClass, String javaPathClassName) {
+		try {
+			Class<?> scalaPathClass = ClassUtils.forName(javaPathClassName + "$", domainClass.getClassLoader());
+			return getStaticFieldOfType(scalaPathClass);
+		} catch (ClassNotFoundException e) {
+			throw new RuntimeException(e);
+		}
+	}
+
 	/**
 	 * Returns the first static field of the given type inside the given type.
 	 *