NPE while indexing entity which contains collection with NULL element

[andreysubbotin]

Environment

• Platform version: 6.8.9

  Description of the bug or enhancement

• Minimal reproducible example fts_metaproperty.zip Create entity with transient collection metaproperty. Collection must contain NULL values. Try to index entity. Error occurs:

  Caused by: java.lang.NullPointerException: null
  at com.haulmont.fts.core.sys.LuceneIndexer.addLinkedPropertyEx(LuceneIndexer.java:319)
  at com.haulmont.fts.core.sys.LuceneIndexer.createLinksFieldContent(LuceneIndexer.java:291)
  at com.haulmont.fts.core.sys.LuceneIndexer.indexEntity(LuceneIndexer.java:153)
  at com.haulmont.fts.core.app.FtsManager.initIndexer(FtsManager.java:291)
  at com.haulmont.fts.core.app.FtsManager.processQueue(FtsManager.java:231)
  at sun.reflect.GeneratedMethodAccessor1097.invoke(Unknown Source)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:498)
  at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)
  at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
  at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
  at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
  at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
  at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
  at com.sun.proxy.$Proxy176.processQueue(Unknown Source)
  ... 10 common frames omitted

[haulmont-git]

Git changesets by subbotin:

eb339235 in release_6_8 - NPE while indexing entity which contains collection with NULL element #39

[haulmont-git]

Git changesets by subbotin:

942ff653 in release_6_9 - NPE while indexing entity which contains collection with NULL element #39

[haulmont-git]

Git changesets by subbotin:

749174ac in release_6_10 - NPE while indexing entity which contains collection with NULL element #39

[haulmont-git]

Git changesets by subbotin:

392f81e2 in master - NPE while indexing entity which contains collection with NULL element #39