*)add XQExpression.executeQuery(0) sink

java/ql/test/stubs/saxon-xqj-9.x/javax/xml/xquery/XQConnection.java

@@ -4,6 +4,8 @@ import java.io.InputStream;
 import java.io.Reader;
 
 public interface XQConnection extends XQDataFactory {
+
+    XQExpression createExpression() throws XQException;
     
     XQPreparedExpression prepareExpression(String var1) throws XQException;
 

java/ql/test/stubs/saxon-xqj-9.x/javax/xml/xquery/XQExpression.java

@@ -0,0 +1,25 @@
+package javax.xml.xquery;
+
+import java.io.InputStream;
+import java.io.Reader;
+
+public interface XQExpression extends XQDynamicContext {
+
+    void cancel() throws XQException;
+
+    boolean isClosed();
+
+    void close() throws XQException;
+
+    void executeCommand(String var1) throws XQException;
+
+    void executeCommand(Reader var1) throws XQException;
+
+    XQResultSequence executeQuery(String var1) throws XQException;
+
+    XQResultSequence executeQuery(Reader var1) throws XQException;
+
+    XQResultSequence executeQuery(InputStream var1) throws XQException;
+
+    XQStaticContext getStaticContext() throws XQException;
+}

java/ql/test/stubs/saxon-xqj-9.x/net/sf/saxon/xqj/SaxonXQConnection.java

@@ -15,6 +15,10 @@ public class SaxonXQConnection extends SaxonXQDataFactory  implements XQConnecti
     SaxonXQConnection(SaxonXQDataSource dataSource) {
     }
 
+    public XQExpression createExpression() throws XQException {
+        return null;
+    }
+
     public XQPreparedExpression prepareExpression(InputStream xquery) throws XQException {
         return null;
     }