more stubs #6097

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

src/api/java/UserPropagator.java

@@ -0,0 +1,55 @@
+/**
+Copyright (c) 2023 Microsoft Corporation
+
+Module Name:
+
+    UserPropagator.java
+
+Abstract:
+
+    User Propagator plugin
+    
+**/
+
+
+package com.microsoft.z3;
+
+import com.microsoft.z3.enumerations.Z3_lbool;
+import java.util.*;
+
+/**
+ * User Propagator
+ **/
+@SuppressWarnings("unchecked")
+public class UserPropagator implements AutoCloseable {
+
+    Solver solver;
+    Context ctx;
+    
+    /**
+     * Create a UserPropagator from a solver.
+     **/
+    public UserPropagator(Solver s)
+    {
+	this.solver = s;
+    }
+
+    /**
+     * Create a UserPropagator from a context.
+     **/
+    public UserPropagator(Context _ctx)
+    {
+	this.ctx = _ctx;
+    }
+
+    /**
+     * Disposes of the propagator.
+     **/
+    @Override
+    public void close()
+    {
+	this.solver = null;
+	this.ctx = null;
+    }
+}
+