HHH-10223: Element 'query-param' in *.hbm.xml files causes ClassCastException

hibernate-core/src/main/java/org/hibernate/boot/model/source/internal/hbm/NamedQueryBinder.java

@@ -45,10 +45,14 @@ public class NamedQueryBinder {
 
 		for ( Object content : namedQueryBinding.getContent() ) {
 			if ( String.class.isInstance( content ) ) {
-				query = (String) content;
+				String trimmed = ((String)content).trim();
+				if (!"".equals(trimmed)) {
+					query = trimmed;
+				}
 			}
 			else {
-				final JaxbHbmQueryParamType paramTypeBinding = (JaxbHbmQueryParamType) content;
+				final JaxbHbmQueryParamType paramTypeBinding = 
+						(JaxbHbmQueryParamType)((JAXBElement)content).getValue();
 				if ( parameterTypeMap == null ) {
 					parameterTypeMap = new HashMap<String,String>();
 				}

hibernate-core/src/test/java/org/hibernate/test/hbm/query/NamedQueryTest.java

@@ -0,0 +1,47 @@
+package org.hibernate.test.hbm.query;
+
+import java.io.StringReader;
+
+import org.hibernate.cfg.Configuration;
+import org.hibernate.engine.jdbc.ReaderInputStream;
+import org.hibernate.testing.TestForIssue;
+import org.hibernate.testing.junit4.BaseUnitTestCase;
+import org.junit.Test;
+
+/**
+ * @author Koen Aers
+ */
+@TestForIssue( jiraKey = "HHH-10223" )
+public class NamedQueryTest extends BaseUnitTestCase {
+	
+	private static String NAMED_QUERY_HBM_XML =
+		"<hibernate-mapping package='org.hibernate.test.hbm.query'> "+
+	    "	<class name='NamedQueryTest$Bar'>                   "+
+		"		<id name='id'>                                  "+
+	    "			<generator class='sequence'/>               "+
+	    "		</id>                                           "+
+	    "		<query name='findByFoo'>                       "+
+	    "			<query-param name='foo' type='string'/>     "+
+	    "			from NamedQueryTest$Bar where foo like :foo "+
+	    "		</query>                                        "+    	
+		"	</class>                                            "+
+		"</hibernate-mapping>                                   ";
+
+	@Test
+	public void testQuery() {
+		Configuration cfg = new Configuration();		
+		cfg.setProperty("hibernate.dialect", "org.hibernate.dialect.HSQLDialect");
+		cfg.addInputStream(new ReaderInputStream(new StringReader(NAMED_QUERY_HBM_XML)));
+		cfg.buildSessionFactory();
+	}
+	
+	public class Bar {
+		private Integer id;		
+		private String foo;
+		public Integer getId() { return id; }		
+		public void setId(Integer id) { this.id = id; }
+		public String getFoo() { return foo; }		
+		public void setFoo(String foo) { this.foo = foo; }
+	}
+
+}