#1456 - io.ebean.annotation.NotNull not honored by @ManyToOne property

src/main/java/io/ebeaninternal/dbmigration/ddlgeneration/platform/PlatformDdl.java

@@ -246,6 +246,9 @@ public class PlatformDdl {
    * Convert the standard type to the platform specific type.
    */
   public String convert(String type, boolean identity) {
+    if (type == null) {
+      return null;
+    }
     if (type.contains("[]")) {
       return convertArrayType(type);
     }

src/main/java/io/ebeaninternal/server/deploy/parse/AnnotationAssocOnes.java

@@ -116,6 +116,10 @@ public class AnnotationAssocOnes extends AnnotationParser {
       prop.setFetchPreference(fetchPreference.value());
     }
 
+    io.ebean.annotation.NotNull nonNull = get(prop, io.ebean.annotation.NotNull.class);
+    if (nonNull != null) {
+      prop.setNullable(false);
+    }
     if (validationAnnotations) {
       NotNull notNull = get(prop, NotNull.class);
       if (notNull != null && isEbeanValidationGroups(notNull.groups())) {