Fix jackson library mismatch causing class incompatibility fatal error while importing the graph

[marekhorst]

Running the primary workflow while preparing #1361 pull request revealed the fatal issue causing import_infospace phase to fail with the following error message:

java.io.InvalidClassException: com.fasterxml.jackson.databind.util.StdDateFormat; local class incompatible: stream classdesc serialVersionUID = 2362066295480386373, local class serialVersionUID = 8976348737753383270

which clearly shows incompatibility of jackson classes caused by misaligned jackson lib versions.

Link to the spark job: http://iis-cdh5-test-gw.ocean.icm.edu.pl:18089/history/application_1614993033499_112964/2/jobs/job/?id=0

It seems the already released /lib/iis/primary/snapshots/2022-05-06 IIS version is also effected so it should be hot-fixed.

[marekhorst]

After a thorough investigation it turned out the new dhp-schemas version dependency has brought the jackson-databind-2.10.3 dependency (among other jackson 2.10-3 deps) which proved to be incompatible with jackson library available in the hadoop cluster environment.

I think I have dealt already with similar issue although I cannot find any github/redmine issue to reference here.

Anyway, the most straightforward solution is to exclude conflicting dependencies in the relevant pom.xml file:

        <dependency>
            <groupId>eu.dnetlib.dhp</groupId>
            <artifactId>dhp-schemas</artifactId>
            <exclusions>
                <exclusion>
                    <!-- conflicting versions -->
                    <groupId>com.fasterxml.jackson.core</groupId>
                    <artifactId>jackson-core</artifactId>
                </exclusion>
                <exclusion>
                    <!-- conflicting versions -->
                    <groupId>com.fasterxml.jackson.core</groupId>
                    <artifactId>jackson-databind</artifactId>
                </exclusion>
                <exclusion>
                    <!-- conflicting versions -->
                    <groupId>com.fasterxml.jackson.core</groupId>
                    <artifactId>jackson-annotations</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

[marekhorst]

Already deployed /lib/iis/primary/snapshots/2022-05-06 IIS version suffering from this issue was manually patched into the newly deployed version /lib/iis/primary/snapshots/2022-05-06_git1363_backported by removing the following libraries from the lib directory:

• jackson-annotations-2.10.3.jar
• jackson-core-2.10.3.jar
• jackson-databind-2.10.3.jar