Workflow for publishing to the Maven Central fails

[luigi-asprino]

This seems to be related to upgrading the Java version, but the workflow file already states that Java 17 is required.

[luigi-asprino]

The workflow ends with this error

Error:  Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin:2.9.1:jar (attach-javadocs) on project sparql-anything-json: MavenReportException: Error while creating archive: 
Error:  Exit code: 1 - Loading source files for package io.github.sparqlanything.json...
Error:  /home/runner/work/sparql.anything/sparql.anything/sparql-anything-json/src/main/java/io/github/sparqlanything/json/JSONTriplifier.java:56: error: text blocks are not supported in -source 11
Error:  	@Option(description = """
Error:  	                      ^
Error:    (use -source 15 or higher to enable text blocks)
Error:  /home/runner/work/sparql.anything/sparql.anything/sparql-anything-json/src/main/java/io/github/sparqlanything/json/JSONTriplifier.java:91: error: switch rules are not supported in -source 11
Error:  			case START_ARRAY -> {
Error:  			                 ^
Error:    (use -source 14 or higher to enable switch rules)
Error:  /home/runner/work/sparql.anything/sparql.anything/sparql-anything-json/src/main/java/io/github/sparqlanything/json/JSONTriplifier.java:101: error: multiple case labels are not supported in -source 11
Error:  			case VALUE_FALSE, VALUE_TRUE ->
Error:  			                  ^
Error:    (use -source 14 or higher to enable multiple case labels)
Error:  /home/runner/work/sparql.anything/sparql.anything/sparql-anything-json/src/main/java/io/github/sparqlanything/json/JSONTriplifier.java:451: error: pattern matching in instanceof is not supported in -source 11
Error:  			if (slice instanceof JSONTokenSlice jslice) {
Error:  			                                    ^
Error:    (use -source 16 or higher to enable pattern matching in instanceof)
Error: [ERROR] 4 errors
Error:  
Error:  Command line was: /opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.12-7/x64/bin/javadoc @options @packages
Error:  
Error:  Refer to the generated Javadoc files in '/home/runner/work/sparql.anything/sparql.anything/sparql-anything-json/target/apidocs' dir.
Error:  -> [Help 1]
Error:  
Error:  To see the full stack trace of the errors, re-run Maven with the -e switch.
Error:  Re-run Maven using the -X switch to enable full debug logging.
Error:  
Error:  For more information about the errors and possible solutions, please read the following articles:
Error:  [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
Error:  
Error:  After correcting the problems, you can resume the build with the command
Error:    mvn <args> -rf :sparql-anything-json
Error: Process completed with exit code 1.

However, mvn -version displays

Apache Maven 3.8.8 (4c87b05d9aedce574290d1acc98575ed5eb6cd39)
Maven home: /usr/share/apache-maven-3.8.8
Java version: 17.0.12, vendor: Eclipse Adoptium, runtime: /usr/lib/jvm/temurin-17-jdk-amd64

[luigi-asprino]

maven-javadoc-plugin was still configured for version 11.
Changing the version number in the pom.xml made the workflow work