Hello,

When attempting this call:

ReportDownloadResponse response =
    new ReportDownloader(session).downloadReport(reportDefinition);

We are met with this error log:

[Fatal Error] :1:1: Premature end of file.
2018-04-20 08:09:06 [main] ERROR c.g.a.a.a.l.c.A.soapXmlLogger.extract(85) - Couldn't process XML into a Document
org.xml.sax.SAXParseException: Premature end of file.
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at javax.xml.parsers.DocumentBuilder.parse(Unknown Source)
at com.google.api.ads.common.lib.utils.XmlFieldExtractor.extract(XmlFieldExtractor.java:72)
at com.google.api.ads.adwords.lib.utils.AdHocReportDownloadHelperImpl.handleResponse(AdHocReportDownloadHelperImpl.java:119)
at com.google.api.ads.adwords.lib.utils.AdHocReportDownloadHelperImpl.downloadReport(AdHocReportDownloadHelperImpl.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.api.ads.common.lib.utils.AdsUtilityInvocationHandler.handleInvocation(AdsUtilityInvocationHandler.java:46)
at com.google.common.reflect.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:84)
at com.sun.proxy.$Proxy46.downloadReport(Unknown Source)
at com.google.api.ads.adwords.lib.utils.AdHocReportDownloadHelper.downloadReport(AdHocReportDownloadHelper.java:46)
at com.google.api.ads.adwords.lib.utils.v201710.ReportDownloader.downloadReport(ReportDownloader.java:65)
at com.zirous.indago.google.adwords.AdwordsTask.runAdTask(AdwordsTask.java:103)
at com.zirous.indago.google.adwords.AdwordsTask.run(AdwordsTask.java:63)
at com.zirous.indago.google.adwords.AdwordsTests.main(AdwordsTests.java:27)
HTTP Response Code: 401
at com.google.api.ads.adwords.lib.utils.v201710.DetailedReportDownloadResponseException$Builder.build(DetailedReportDownloadResponseException.java:35)
at com.google.api.ads.adwords.lib.utils.AdHocReportDownloadHelperImpl.handleResponse(AdHocReportDownloadHelperImpl.java:117)
at com.google.api.ads.adwords.lib.utils.AdHocReportDownloadHelperImpl.downloadReport(AdHocReportDownloadHelperImpl.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.api.ads.common.lib.utils.AdsUtilityInvocationHandler.handleInvocation(AdsUtilityInvocationHandler.java:46)
at com.google.common.reflect.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:84)
at com.sun.proxy.$Proxy46.downloadReport(Unknown Source)
at com.google.api.ads.adwords.lib.utils.AdHocReportDownloadHelper.downloadReport(AdHocReportDownloadHelper.java:46)
at com.google.api.ads.adwords.lib.utils.v201710.ReportDownloader.downloadReport(ReportDownloader.java:65)
at com.zirous.indago.google.adwords.AdwordsTask.runAdTask(AdwordsTask.java:103)
at com.zirous.indago.google.adwords.AdwordsTask.run(AdwordsTask.java:63)
at com.zirous.indago.google.adwords.AdwordsTests.main(AdwordsTests.java:27)
Exception in thread "main" java.lang.RuntimeException:
at com.zirous.indago.google.adwords.AdwordsTask.run(AdwordsTask.java:66)
at com.zirous.indago.google.adwords.AdwordsTests.main(AdwordsTests.java:27)

We ran a couple of test calls in Postman to download a report with a basic report definition and was met with a 502 Bad Gateway error. The Adwords forum suggested that it might be a client library issue instead.

Our reports were downloading fine about a week ago, then these errors happened without any change on our end.

Any ideas on what might be the cause?

Thank you.