DOI fetcher seems not to work anymore because of JabRef using deprecated Crossref API

[ytzemih]

Using the "Look up DOI" does not work for me anymore.

I am getting the following exception:

org.jabref.logic.importer.FetcherException: An I/O exception occurred
at org.jabref.logic.importer.IdParserFetcher.findIdentifier(IdParserFetcher.java:93)
at org.jabref.gui.fieldeditors.IdentifierEditorViewModel.lambda$lookupIdentifier$3(IdentifierEditorViewModel.java:96)
at org.jabref.gui.util.BackgroundTask$1.call(BackgroundTask.java:39)
at org.jabref.gui.util.DefaultTaskExecutor$1.call(DefaultTaskExecutor.java:98)
at javafx.concurrent.Task$TaskCallable.call(Task.java:1423)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Server returned HTTP response code: 400 for URL: https://api.crossref.org/works?query.title=Safety+analysis+using+Petri+nets&query.author=Leveson%2C+N.+G.+and+Stolzy%2C+J.+L.&filter=from-pub-date%3A2006&rows=20&offset=0
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1894)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:263)
at java.net.URL.openStream(URL.java:1045)
at org.jabref.logic.importer.IdParserFetcher.findIdentifier(IdParserFetcher.java:74)
... 10 more

The important part is the line:

Caused by: java.io.IOException: Server returned HTTP response code: 400 for URL: https://api.crossref.org/works?query.title=Safety+analysis+using+Petri+nets&query.author=Leveson%2C+N.+G.+and+Stolzy%2C+J.+L.&filter=from-pub-date%3A2006&rows=20&offset=0

Copying it to the browser returns:

This clearly tells me that this is a bug due to crossref API deprecation and could probably be fixed by just changing from using the parameter query.title to using query.bibliographic.

I am using

JabRef 4.3.1
Linux 4.15.0-70-generic amd64
Java 1.8.0_201

and am reporting that problem since I have had it for a couple of months already.

Thanks for taking a look at it.

[Siedlerchr]

Duplicate of #5485
This issue has been resolved in the 5.0.0 beta:
https://www.fosshub.com/JabRef-old.html
You can download it from the link above.
Please remember to make a backup of your library before trying out the new version.

[ytzemih]

Thanks a lot, will try 5.0! And, sorry, my quick-check for duplicates was apparently not accurate enough.