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PO@Embedded Reference on Entity Giving java.lang.stackoverflow
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  1. PO@Embedded Reference on Entity Giving java.lang.stackoverflow
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    copied!<p>We have the following error when attempting to use an @Embedded object in Morphia on Play.</p> <pre><code>A java.lang.StackOverflowError has been caught, null Hide trace java.lang.StackOverflowError at java.util.LinkedHashMap.init(LinkedHashMap.java:223) at java.util.HashMap.(HashMap.java:210) at java.util.LinkedHashMap.(LinkedHashMap.java:181) at org.bson.BasicBSONObject.(BasicBSONObject.java:39) at com.mongodb.BasicDBObject.(BasicDBObject.java:42) at com.google.code.morphia.mapping.Mapper.toDBObject(Mapper.java:435) at com.google.code.morphia.mapping.Mapper.toDBObject(Mapper.java:430) at com.google.code.morphia.mapping.EmbeddedMapper.writeCollection(EmbeddedMapper.java:68) at com.google.code.morphia.mapping.EmbeddedMapper.toDBObject(EmbeddedMapper.java:30) </code></pre> <p>This is caused by trying to save an instance of the following class:</p> <pre><code>@Entity public class Profile extends Model { @Embedded public class ObjectPermission { public String type; public ArrayList&lt;String&gt; viewable; public ArrayList&lt;String&gt; editable; } public String _sfid; public String _type; @Embedded public ArrayList&lt;ObjectPermission&gt; object; } </code></pre> <p>We are attempting to save it in the following way:</p> <pre><code>@Test public void TestFullProfileSave() { Profile p = new Profile(); p._sfid = "0123456789101213145"; p._type = "entitlements"; ObjectPermission objPerm = p.new ObjectPermission(); objPerm.type = "Account"; objPerm.viewable = new ArrayList&lt;String&gt;(); objPerm.viewable.add("field1"); objPerm.viewable.add("field2"); objPerm.editable = new ArrayList&lt;String&gt;(); objPerm.editable.add("field3"); objPerm.editable.add("field4"); p.object = new ArrayList&lt;ObjectPermission&gt;(); p.object.add(objPerm); p.save(); } </code></pre> <p>I have a feeling it is the ArrayLists but don't know why hence my confusion. Thanks in advance.</p> <p>Paul</p>
 

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