#435 - Duplicate foreign key name with ManyToMany relations

src/test/java/com/avaje/tests/m2m/TestM2MSelfRelationship.java

@@ -0,0 +1,29 @@
+package com.avaje.tests.m2m;
+
+import com.avaje.ebean.BaseTestCase;
+import com.avaje.ebean.Ebean;
+import com.avaje.tests.model.m2m.MnyTopic;
+import org.junit.Test;
+
+/**
+ * Added to test DDL generation for ManyToMany related back to itself.
+ */
+public class TestM2MSelfRelationship extends BaseTestCase {
+
+  @Test
+  public void test() {
+
+    Ebean.getDefaultServer();
+
+    // Create 2 roles r0 and r1
+    MnyTopic r0 = new MnyTopic("r0");
+    MnyTopic r1 = new MnyTopic("r1");
+
+    // Save r1 and r2
+    Ebean.save(r0);
+    Ebean.save(r1);
+
+    r0.getSubTopics().add(r1);
+    Ebean.save(r0);
+  }
+}