Reenable running fetcher tests (and update Springer from v1 to v2)

docs/code-howtos/fetchers.md

@@ -12,7 +12,7 @@ Fetchers are the implementation of the [search using online services](https://do
 | [SAO/NASA Astrophysics Data System](https://docs.jabref.org/collect/import-using-online-bibliographic-database#sao-nasa-astrophysics-data-system) | [ADS UI](https://ui.adsabs.harvard.edu/user/settings/token)                                                    | `AstrophysicsDataSystemAPIKey` | 5000 calls/day                   |
 | [ScienceDirect](https://www.sciencedirect.com)                                                                                                    |                                                                                                                | `ScienceDirectApiKey`          |                                  |
 | [SemanticScholar](https://www.semanticscholar.org/)                                                                                               | <https://www.semanticscholar.org/product/api#api-key-form>                                                     | `SemanticScholarApiKey`        |                                  |
-| [Springer Nature](https://docs.jabref.org/collect/import-using-online-bibliographic-database#springer)                                            | [Springer Nature API Portal](https://dev.springernature.com)                                                   | `SpringerNatureAPIKey`         | 5000 calls/day                   |
+| [Springer Nature](https://docs.jabref.org/collect/import-using-online-bibliographic-database#springer)                                            | [Springer Nature API Portal](https://dev.springernature.com). Use the "Meta API" API key.                      | `SpringerNatureAPIKey`         | 5000 calls/day                   |
 | [Zentralblatt Math](https://www.zbmath.org)                                                                                                       | (none)                                                                                                         | (none)                         | Depending on the current network |
 | [Biodiversity Heritage Library](https://www.biodiversitylibrary.org/)                                                                             | [Biodiversitylibrary](https://about.biodiversitylibrary.org/tools-and-services/developer-and-data-tools/#APIs) | `BiodiversityHeritageApiKey`   | -                                |
 

jablib/build.gradle.kts

@@ -431,25 +431,30 @@ jmh {
     zip64  = true
 }
 
+val testSourceSet = sourceSets["test"]
+
 tasks.register<Test>("fetcherTest") {
+    group = LifecycleBasePlugin.VERIFICATION_GROUP
+    testClassesDirs = testSourceSet.output.classesDirs
+    classpath = testSourceSet.runtimeClasspath
     useJUnitPlatform {
         includeTags("FetcherTest")
     }
-
     maxParallelForks = 1
 }
 
 tasks.register<Test>("databaseTest") {
+    group = LifecycleBasePlugin.VERIFICATION_GROUP
+    testClassesDirs = testSourceSet.output.classesDirs
+    classpath = testSourceSet.runtimeClasspath
     useJUnitPlatform {
         includeTags("DatabaseTest")
     }
-
     testLogging {
         // set options for log level LIFECYCLE
         events("FAILED")
         exceptionFormat = TestExceptionFormat.FULL
     }
-
     maxParallelForks = 1
 }
 

jablib/src/main/java/org/jabref/logic/importer/fetcher/SpringerNatureFullTextFetcher.java

@@ -31,6 +31,9 @@ public class SpringerNatureFullTextFetcher implements FulltextFetcher, Customiza
 
     private static final Logger LOGGER = LoggerFactory.getLogger(SpringerNatureFullTextFetcher.class);
 
+    // TODO: Update to the new [fulltext API](https://dev.springernature.com/docs/api-endpoints/fulltext-api/?source=jabref)
+    //       as well as [Open Access API](https://dev.springernature.com/docs/api-endpoints/open-access/?source=jabref)
+    //       Both APIs also [require separate API keys](https://dev.springernature.com/subscription/).
     private static final String API_URL = "https://api.springer.com/meta/v1/json";
     private static final String CONTENT_HOST = "link.springer.com";
 

jablib/src/main/java/org/jabref/logic/importer/fetcher/SpringerNatureWebFetcher.java

@@ -32,19 +32,17 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-/**
- * Fetches data from the Springer
- *
- * @see <a href="https://dev.springernature.com/">API documentation</a> for more details
- */
+/// Fetches data from Springer Nature
+///
+/// See <https://dev.springernature.com/docs/api-endpoints/meta-api/?source=jabref> for more information
 public class SpringerNatureWebFetcher implements PagedSearchBasedParserFetcher, CustomizableKeyFetcher {
     public static final String FETCHER_NAME = "Springer";
 
     private static final Logger LOGGER = LoggerFactory.getLogger(SpringerNatureWebFetcher.class);
 
-    private static final String API_URL = "https://api.springernature.com/meta/v1/json";
+    private static final String API_URL = "https://api.springernature.com/meta/v2/json";
     // Springer query using the parameter 'q=doi:10.1007/s11276-008-0131-4s=1' will respond faster
-    private static final String TEST_URL_WITHOUT_API_KEY = "https://api.springernature.com/meta/v1/json?q=doi:10.1007/s11276-008-0131-4s=1&p=1&api_key=";
+    private static final String TEST_URL_WITHOUT_API_KEY = "https://api.springernature.com/meta/v2/json?q=doi:10.1007/s11276-008-0131-4s=1&p=1&api_key=";
 
     private final ImporterPreferences importerPreferences;
 
@@ -53,7 +51,7 @@ public SpringerNatureWebFetcher(ImporterPreferences importerPreferences) {
     }
 
     /**
-     * Convert a JSONObject obtained from <a href="http://api.springer.com/metadata/json">http://api.springer.com/metadata/json</a> to a BibEntry
+     * Convert a JSONObject obtained from <a href="https://dev.springernature.com/docs/api-endpoints/metadata-api/?source=jabref">the Metadata API</a> to a BibEntry
      *
      * @param springerJsonEntry the JSONObject from search results
      * @return the converted BibEntry

jablib/src/main/java/org/jabref/logic/importer/fetcher/transformers/SpringerQueryTransformer.java

@@ -1,10 +1,11 @@
 package org.jabref.logic.importer.fetcher.transformers;
 
-/**
- * This class converts a query string written in lucene syntax into a complex  query.
- *
- * For simplicity this is currently limited to fielded data and the boolean AND operator.
- */
+/// This class converts a query string written in lucene syntax into a complex  query.
+///
+/// For simplicity this is currently limited to fielded data and the boolean AND operator.
+///
+/// See <https://dev.springernature.com/docs/supported-query-params/?source=data-solutions> for a complete list of supported fields.
+/// `handleUnFieldedTerm` is not overridden, because the API handles unfielded terms.
 public class SpringerQueryTransformer extends AbstractQueryTransformer {
 
     @Override