Here is the NPE stack trace

java.lang.NullPointerException
at com.avaje.ebean.server.loadcontext.DLoadManyContext.(DLoadManyContext.java:59)
at com.avaje.ebean.server.loadcontext.DLoadContext.createManyContext(DLoadContext.java:266)
at com.avaje.ebean.server.loadcontext.DLoadContext.getManyContext(DLoadContext.java:256)
at com.avaje.ebean.server.loadcontext.DLoadContext.register(DLoadContext.java:220)
at com.avaje.ebean.server.query.CQuery.register(CQuery.java:724)
at com.avaje.ebean.server.query.SqlTreeNodeBean.createListProxies(SqlTreeNodeBean.java:360)
at com.avaje.ebean.server.query.SqlTreeNodeBean.load(SqlTreeNodeBean.java:300)
at com.avaje.ebean.server.query.SqlTreeNodeManyRoot.load(SqlTreeNodeManyRoot.java:30)
at com.avaje.ebean.server.query.SqlTreeNodeBean.load(SqlTreeNodeBean.java:290)
at com.avaje.ebean.server.query.CQuery.readRow(CQuery.java:557)
at com.avaje.ebean.server.query.CQuery.readBeanInternal(CQuery.java:594)
at com.avaje.ebean.server.query.CQuery.readTheRows(CQuery.java:675)
at com.avaje.ebean.server.query.CQuery.readCollection(CQuery.java:660)
at com.avaje.ebean.server.query.CQueryEngine.findMany(CQueryEngine.java:166)
at com.avaje.ebean.server.query.DefaultOrmQueryEngine.findMany(DefaultOrmQueryEngine.java:88)
at com.avaje.ebean.server.core.OrmQueryRequest.findList(OrmQueryRequest.java:277)
at com.avaje.ebean.server.core.DefaultServer.findList(DefaultServer.java:1288)
at com.avaje.ebean.server.core.DefaultBeanLoader.loadMany(DefaultBeanLoader.java:143)
at com.avaje.ebean.server.core.DefaultServer.loadMany(DefaultServer.java:372)
at com.avaje.ebean.server.loadcontext.DLoadManyContext.loadMany(DLoadManyContext.java:143)
at com.avaje.ebean.common.AbstractBeanCollection.lazyLoadCollection(AbstractBeanCollection.java:140)
at com.avaje.ebean.common.BeanSet.init(BeanSet.java:110)
at com.avaje.ebean.common.BeanSet.toArray(BeanSet.java:298)
at java.util.ArrayList.addAll(ArrayList.java:473)