Fix for #190 - javax.persistence.PersistenceException: Server [null] was not found? at EntityBeanIntercept.loadBean(EntityBeanIntercept.java:693)

src/test/java/com/avaje/tests/cache/TestL2CacheWithSharedBean.java

@@ -0,0 +1,56 @@
+package com.avaje.tests.cache;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.avaje.ebean.BaseTestCase;
+import com.avaje.ebean.Ebean;
+import com.avaje.ebean.Query;
+import com.avaje.ebean.cache.ServerCache;
+import com.avaje.ebeaninternal.api.SpiQuery;
+import com.avaje.ebeaninternal.server.autofetch.TunedQueryInfo;
+import com.avaje.ebeaninternal.server.querydefn.OrmQueryDetail;
+import com.avaje.tests.model.basic.FeatureDescription;
+
+public class TestL2CacheWithSharedBean extends BaseTestCase {
+
+  @Test
+  public void test() {
+
+    FeatureDescription f1 = new FeatureDescription();
+    f1.setName("one");
+    f1.setDescription(null);
+
+    Ebean.save(f1);
+
+    ServerCache beanCache = Ebean.getServerCacheManager().getBeanCache(FeatureDescription.class);
+    beanCache.getStatistics(true);
+
+    OrmQueryDetail tunedDetail = new OrmQueryDetail();
+    tunedDetail.select("name");
+    TunedQueryInfo tunedInfo = new TunedQueryInfo(null, tunedDetail, 0);
+
+    Query<FeatureDescription> query = Ebean.find(FeatureDescription.class).setId(f1.getId());
+
+    tunedInfo.autoFetchTune((SpiQuery<?>) query);
+
+    query.findUnique(); // PUT into cache
+
+    FeatureDescription fd2 = query.findUnique(); // LOAD cache
+
+    fd2.getDescription(); // invoke lazy load (this fails)
+
+    // load the cache
+    FeatureDescription fetchOne = Ebean.find(FeatureDescription.class, f1.getId());
+    Assert.assertNotNull(fetchOne);
+    Assert.assertEquals(1, beanCache.getStatistics(false).getSize());
+
+    FeatureDescription fetchTwo = Ebean.find(FeatureDescription.class, f1.getId());
+    FeatureDescription fetchThree = Ebean.find(FeatureDescription.class, f1.getId());
+    Assert.assertSame(fetchTwo, fetchThree);
+
+    String description = fetchThree.getDescription();
+    Assert.assertNull(description);
+  }
+
+}