Hello, we are currently trying to use the BibTex-export in one of our CRIS projects (and possible other CSL-based exports), but the export ist constantly failing, returning the following error. The same error occurs on all installations (server and local development) and with both OpenJDK or Oracle JDK. Maybe someone has seen this before and got some ideas how to get this functionality to work.
Regards Johannes //---------------------- *2023-06-13 13:26:28,990 ERROR unknown unknown org.dspace.app.rest.scripts.handler.impl.RestDSpaceRunnableHandler @ Process id: 42, script name: item-export, message: null* *java.lang.RuntimeException: java.lang.NullPointerException: Cannot invoke "javax.script.ScriptEngine.eval(java.io.Reader)" because "this.engine" is null* *at org.dspace.app.rest.scripts.handler.impl.RestDSpaceRunnableHandler.handleException(RestDSpaceRunnableHandler.java:176) [classes/:cris-2022.03.01-SNAPSHOT]* *at org.dspace.app.rest.scripts.handler.impl.RestDSpaceRunnableHandler.handleException(RestDSpaceRunnableHandler.java:143) [classes/:cris-2022.03.01-SNAPSHOT]* *at org.dspace.content.integration.crosswalks.script.ItemExport.internalRun(ItemExport.java:99) ~[dspace-api-cris-2022.03.01-SNAPSHOT.jar:cris-2022.03.01-SNAPSHOT]* *at org.dspace.scripts.DSpaceRunnable.run(DSpaceRunnable.java:104) [dspace-api-cris-2022.03.01-SNAPSHOT.jar:cris-2022.03.01-SNAPSHOT]* *at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) [?:?]* *at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) [?:?]* *at java.lang.Thread.run(Thread.java:833) [?:?]* *Caused by: java.lang.NullPointerException: Cannot invoke "javax.script.ScriptEngine.eval(java.io.Reader)" because "this.engine" is null* *at de.undercouch.citeproc.script.JREScriptRunner.eval(JREScriptRunner.java:60) ~[citeproc-java-1.0.1.jar:?]* *at de.undercouch.citeproc.script.AbstractScriptRunner.loadScript(AbstractScriptRunner.java:29) ~[citeproc-java-1.0.1.jar:?]* *at de.undercouch.citeproc.CSL.getRunner(CSL.java:386) ~[citeproc-java-1.0.1.jar:?]* *at de.undercouch.citeproc.CSL.<init>(CSL.java:264) ~[citeproc-java-1.0.1.jar:?]* *at de.undercouch.citeproc.CSL.<init>(CSL.java:242) ~[citeproc-java-1.0.1.jar:?]* *at de.undercouch.citeproc.CSL.<init>(CSL.java:221) ~[citeproc-java-1.0.1.jar:?]* *at de.undercouch.citeproc.CSL.<init>(CSL.java:185) ~[citeproc-java-1.0.1.jar:?]* *at de.undercouch.citeproc.CSL.<init>(CSL.java:154) ~[citeproc-java-1.0.1.jar:?]* *at org.dspace.content.integration.crosswalks.csl.CSLNestedGenerator.createCitationProcessor(CSLNestedGenerator.java:43) ~[dspace-api-cris-2022.03.01-SNAPSHOT.jar:cris-2022.03.01-SNAPSHOT]* *at org.dspace.content.integration.crosswalks.csl.CSLNestedGenerator.generate(CSLNestedGenerator.java:36) ~[dspace-api-cris-2022.03.01-SNAPSHOT.jar:cris-2022.03.01-SNAPSHOT]* *at org.dspace.content.integration.crosswalks.CSLItemDataCrosswalk.disseminate(CSLItemDataCrosswalk.java:85) ~[dspace-api-cris-2022.03.01-SNAPSHOT.jar:cris-2022.03.01-SNAPSHOT]* *at org.dspace.content.integration.crosswalks.CSLItemDataCrosswalk.disseminate(CSLItemDataCrosswalk.java:71) ~[dspace-api-cris-2022.03.01-SNAPSHOT.jar:cris-2022.03.01-SNAPSHOT]* *at org.dspace.content.integration.crosswalks.script.ItemExport.performExport(ItemExport.java:107) ~[dspace-api-cris-2022.03.01-SNAPSHOT.jar:cris-2022.03.01-SNAPSHOT]* *at org.dspace.content.integration.crosswalks.script.ItemExport.internalRun(ItemExport.java:96) ~[dspace-api-cris-2022.03.01-SNAPSHOT.jar:cris-2022.03.01-SNAPSHOT]* *... 4 more* -- All messages to this mailing list should adhere to the Code of Conduct: https://www.lyrasis.org/about/Pages/Code-of-Conduct.aspx --- You received this message because you are subscribed to the Google Groups "DSpace Technical Support" group. To unsubscribe from this group and stop receiving emails from it, send an email to dspace-tech+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dspace-tech/91a11eec-5352-4ce4-866b-c32a5bfd35abn%40googlegroups.com.
