msbukal opened a new pull request #14024: URL: https://github.com/apache/beam/pull/14024
When the search result returned from FhirIO.Search is empty, the following
exception occurs:
```
Caused by: java.lang.NullPointerException
at com.google.gson.JsonArray.addAll (JsonArray.java:117)
at
org.apache.beam.sdk.io.gcp.healthcare.FhirIO$Search$SearchResourcesJsonString$SearchResourcesFn.searchResources
(FhirIO.java:1695)
at
org.apache.beam.sdk.io.gcp.healthcare.FhirIO$Search$SearchResourcesJsonString$SearchResourcesFn.processElement
(FhirIO.java:1662)
```
Changed the first "addAll" to be within the "while hasNext" loop, and fixed
"hasNext" to also check for null, as this causes:
```
Caused by: java.lang.NullPointerException
at
org.apache.beam.sdk.io.gcp.healthcare.HttpHealthcareApiClient$FhirResourcePages$FhirResourcePagesIterator.hasNext(HttpHealthcareApiClient.java:964)
at
org.apache.beam.sdk.io.gcp.healthcare.FhirIO$Search$SearchResourcesJsonString$SearchResourcesFn.searchResources(FhirIO.java:1688)
at
org.apache.beam.sdk.io.gcp.healthcare.FhirIO$Search$SearchResourcesJsonString$SearchResourcesFn.processElement(FhirIO.java:1655)
```
------------------------
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