HHH-17765 Support some special chars in query method queries

tooling/metamodel-generator/src/main/java/org/hibernate/jpamodelgen/annotation/AnnotationMetaEntity.java

@@ -12,6 +12,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.StringTokenizer;
+import java.util.regex.Pattern;
 import javax.lang.model.element.AnnotationMirror;
 import javax.lang.model.element.AnnotationValue;
 import javax.lang.model.element.Element;
@@ -1493,7 +1494,7 @@ public class AnnotationMetaEntity extends AnnotationMeta {
 	}
 
 	private static boolean parameterIsMissing(String hql, int i, String param, String type) {
-		return !hql.matches(".*(:" + param + "|\\?" + i + ")\\b.*")
+		return !Pattern.compile( ".*(:" + param + "|\\?" + i + ")\\b.*", Pattern.DOTALL ).matcher( hql ).matches()
 			&& !isSessionParameter(type)
 			&& !isPageParam(type)
 			&& !isOrderParam(type);

tooling/metamodel-generator/src/main/java/org/hibernate/jpamodelgen/annotation/QueryMethod.java

@@ -241,13 +241,31 @@ public class QueryMethod extends AbstractQueryMethod {
 
 	@Override
 	public String getAttributeNameDeclarationString() {
-		return new StringBuilder()
+		StringBuilder sb = new StringBuilder(queryString.length() + 100)
 				.append( "static final String " )
 				.append( getConstantName() )
-				.append(" = \"")
-				.append(queryString)
-				.append("\";")
-				.toString();
+				.append( " = \"" );
+		for ( int i = 0; i < queryString.length(); i++ ) {
+			final char c = queryString.charAt( i );
+			switch ( c ) {
+				case '\r':
+					sb.append( "\\r" );
+					break;
+				case '\n':
+					sb.append( "\\n" );
+					break;
+				case '\\':
+					sb.append( "\\\\" );
+					break;
+				case '"':
+					sb.append( "\\\"" );
+					break;
+				default:
+					sb.append( c );
+					break;
+			}
+		}
+		return sb.append("\";").toString();
 	}
 
 	private String getConstantName() {

tooling/metamodel-generator/src/test/java/org/hibernate/jpamodelgen/test/dao/Dao.java

@@ -112,4 +112,7 @@ public interface Dao {
 
     @HQL("select avg(pages) from Book")
     double averagePageCount();
+
+    @HQL("select b\nfrom Book b\nwhere b.isbn = :isbn")
+    Book findByIsbnMultiline(String isbn);
 }