FIX DB2 migration: reorg table must be called after drop not null

ebean-test/src/test/java/misc/migration/v1_0/ETable.java

@@ -3,6 +3,7 @@ package misc.migration.v1_0;
 import io.ebean.annotation.DbComment;
 import io.ebean.annotation.History;
 import io.ebean.annotation.Index;
+import io.ebean.annotation.NotNull;
 
 import javax.persistence.*;
 import java.util.List;
@@ -36,6 +37,17 @@ public class ETable {
   @OneToMany(mappedBy = "foreign")
   List<ETable> foreigns;
 
+  @NotNull
+  private String textfield;
+
+  public void setTextfield(String textfield) {
+    this.textfield = textfield;
+  }
+
+  public String getTextfield() {
+    return textfield;
+  }
+
   public String getIndex() {
     return index;
   }

ebean-test/src/test/java/misc/migration/v1_1/ETable.java

@@ -39,4 +39,9 @@ public class ETable {
 
   @OneToMany(mappedBy = "foreign")
   List<ETable> foreigns;
+
+  private String textfield;
+
+  @Index
+  private String textfield2;
 }