ACM Portal websearch bug

[ghost]

JabRef version

5.9 (latest release)

Operating system

Windows

Details on version and operating system

Windows 10 22H2

Checked with the latest development build

• I made a backup of my libraries before testing the latest development version.
• I have tested the latest development version and the problem persists

Steps to reproduce the behaviour

1. Go to search on the web: ACM Portal
2. Enter the test string "dd"
3. See the error message below

Appendix

...

Log File

Not updating theme because it hasn't changed
Theme set to Theme{type=EMBEDDED, name='Dark.css'} with base css StyleSheet{jrt:/org.jabref/org/jabref/gui/Base.css}
No open database detected
Aan het openen: 'F:\DATA (op externe HDD)\DINOSAURUS BOEK\Dinosaurus Boek.bib'
Aan het openen: 'F:\DATA (op externe HDD)\DINOSAURUS BOEK\Dinosaurus Paper\Dinosaurus Paper.bib'
Index path for F:\DATA (op externe HDD)\DINOSAURUS BOEK\Dinosaurus Paper\Dinosaurus Paper.bib is C:\Users\gebruiker\AppData\Local\org.jabref\JabRef\lucene94
Index path for F:\DATA (op externe HDD)\DINOSAURUS BOEK\Dinosaurus Boek.bib is C:\Users\gebruiker\AppData\Local\org.jabref\JabRef\lucene94
Error importing
java.lang.NullPointerException: Cannot invoke "com.google.gson.JsonElement.getAsString()" because the return value of "com.google.gson.JsonObject.get(String)" is null
at org.jabref@5.9.6000/org.jabref.logic.importer.fileformat.ACMPortalParser.parseBibEntry(Unknown Source)
at org.jabref@5.9.6000/org.jabref.logic.importer.fileformat.ACMPortalParser.getBibEntriesFromDoiList(Unknown Source)
at org.jabref@5.9.6000/org.jabref.logic.importer.fileformat.ACMPortalParser.parseEntries(Unknown Source)
at org.jabref@5.9.6000/org.jabref.logic.importer.SearchBasedParserFetcher.getBibEntries(Unknown Source)
at org.jabref@5.9.6000/org.jabref.logic.importer.SearchBasedParserFetcher.performSearch(Unknown Source)
at org.jabref@5.9.6000/org.jabref.logic.importer.SearchBasedFetcher.performSearch(Unknown Source)
at org.jabref@5.9.6000/org.jabref.gui.importer.fetcher.WebSearchPaneViewModel.lambda$search$3(Unknown Source)
at org.jabref@5.9.6000/org.jabref.gui.util.BackgroundTask$1.call(Unknown Source)
at org.jabref@5.9.6000/org.jabref.gui.util.DefaultTaskExecutor$1.call(Unknown Source)
at org.jabref.merged.module@5.9.6000/javafx.concurrent.Task$TaskCallable.call(Unknown Source)
at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)

Import canceled

[ghost]

This error seems to appear only with certain search strings like "dd". Other search strings don't generate this error

[Siedlerchr]

The author parsing fails because the author only has a family name, not a given name

There needs to be a check for the attribute, best checking if both exist

{"family":"Ngo-Thi-Thu-Trang"}

jabref/src/main/java/org/jabref/logic/importer/fileformat/ACMPortalParser.java

Line 157 in 5e4cb4e

authorJsonObject.get("given").getAsString() + " " + authorJsonObject.get("family").getAsString()

ERROR: Error importing: java.lang.NullPointerException: Cannot invoke "com.google.gson.JsonElement.getAsString()" because the return value of "com.google.gson.JsonObject.get(String)" is null
	at org.jabref/org.jabref.logic.importer.fileformat.ACMPortalParser.parseBibEntry(ACMPortalParser.java:157)
	at org.jabref/org.jabref.logic.importer.fileformat.ACMPortalParser.getBibEntriesFromDoiList(ACMPortalParser.java:102)
	at org.jabref/org.jabref.logic.importer.fileformat.ACMPortalParser.parseEntries(ACMPortalParser.java:53)
	at org.jabref/org.jabref.logic.importer.SearchBasedParserFetcher.getBibEntries(SearchBasedParserFetcher.java:59)
	at org.jabref/org.jabref.logic.importer.SearchBasedParserFetcher.performSearch(SearchBasedParserFetcher.java:54)
	at org.jabref/org.jabref.logic.importer.SearchBasedFetcher.performSearch(SearchBasedFetcher.java:51)
	at org.jabref/org.jabref.gui.importer.fetcher.WebSearchPaneViewModel.lambda$2(WebSearchPaneViewModel.java:144)
	at org.jabref/org.jabref.gui.util.BackgroundTask$1.call(BackgroundTask.java:60)
	at org.jabref/org.jabref.gui.util.DefaultTaskExecutor$1.call(DefaultTaskExecutor.java:161)
	at javafx.graphics@20/javafx.concurrent.Task$TaskCallable.call(Task.java:1426)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at java.base/java.lang.Thread.run(Thread.java:1589)