[GitHub] [metamodel] jhorcicka commented on issue #229: Upgrade to Elasticsearch 7.3.1

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jhorcicka commented on issue #229: Upgrade to Elasticsearch 7.3.1
URL: https://github.com/apache/metamodel/pull/229#issuecomment-538894162
 
 
   While using this branch, I get the following NPE: 
   
   ```
   ERROR 16:30:26 ElasticSearchRestDataContext - Unexpected error during 
detectTable for document type '_doc'
   java.lang.NullPointerException
        at 
org.apache.metamodel.elasticsearch.common.ElasticSearchMetaDataParser.parse(ElasticSearchMetaDataParser.java:41)
        at 
org.apache.metamodel.elasticsearch.rest.ElasticSearchRestDataContext.detectTable(ElasticSearchRestDataContext.java:187)
        at 
org.apache.metamodel.elasticsearch.rest.ElasticSearchRestDataContext.detectSchema(ElasticSearchRestDataContext.java:155)
        at 
org.apache.metamodel.elasticsearch.rest.ElasticSearchRestDataContext.<init>(ElasticSearchRestDataContext.java:111)
        at 
org.apache.metamodel.elasticsearch.rest.ElasticSearchRestDataContext.<init>(ElasticSearchRestDataContext.java:124)
        at 
org.datacleaner.extension.elasticsearch.MockElasticSearchDatastore.createDatastoreConnection(MockElasticSearchDatastore.java:28)
        at 
org.datacleaner.connection.UsageAwareDatastore.getDatastoreConnection(UsageAwareDatastore.java:97)
        at 
org.datacleaner.connection.UsageAwareDatastore.openConnection(UsageAwareDatastore.java:108)
        at 
org.datacleaner.connection.ElasticSearchDatastore.openConnection(ElasticSearchDatastore.java:183)
        at 
org.datacleaner.extension.elasticsearch.ElasticSearchIndexAnalyzer.init(ElasticSearchIndexAnalyzer.java:100)
   ```
   
   It would be nice to fix it here. Add a null check for "metaDataInfo". 
   
   
![01](https://user-images.githubusercontent.com/13213915/66296259-6f143800-e8ed-11e9-9f22-dadfc53bf3ed.png)
   

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