Querying Work Item Type produces linkage error
When attempting to create a work item using the Java Plain API (using groovy method shown here: How can I script Jazz/RTC using Groovy? - Jazz Forum) I have run into a Linkage error when attempting to get a Work Item Type object from the repository:
[2021-08-05T13:38:28.711Z] class path: F:\ProgramFiles\Groovy\Groovy-2.4.16\lib\groovy-2.4.16.jar [2021-08-05T13:38:28.711Z] Caught: java.lang.LinkageError: loader constraint violation in interface itable initialization for class org.apache.xerces.dom.NodeImpl: when selecting method 'org.w3c.dom.NodeList org.w3c.dom.Node.getChildNodes()' the class loader 'bootstrap' for super interface org.w3c.dom.Node, and the class loader org.codehaus.groovy.tools.RootLoader @326de728 of the selected method's abstract class, org.apache.xerces.dom.NodeImpl have different Class objects for the type org.w3c.dom.NodeList used in the signature (org.w3c.dom.Node is in module java.xml of loader 'bootstrap'; org.apache.xerces.dom.NodeImpl is in unnamed module of loader org.codehaus.groovy.tools.RootLoader @326de728, parent loader 'app') [2021-08-05T13:38:28.712Z] java.lang.LinkageError: loader constraint violation in interface itable initialization for class org.apache.xerces.dom.NodeImpl: when selecting method 'org.w3c.dom.NodeList org.w3c.dom.Node.getChildNodes()' the class loader 'bootstrap' for super interface org.w3c.dom.Node, and the class loader org.codehaus.groovy.tools.RootLoader @326de728 of the selected method's abstract class, org.apache.xerces.dom.NodeImpl have different Class objects for the type org.w3c.dom.NodeList used in the signature (org.w3c.dom.Node is in module java.xml of loader 'bootstrap'; org.apache.xerces.dom.NodeImpl is in unnamed module of loader org.codehaus.groovy.tools.RootLoader @326de728, parent loader 'app') [2021-08-05T13:38:28.712Z] at org.apache.xerces.parsers.AbstractDOMParser.startDocument(Unknown Source) [2021-08-05T13:38:28.712Z] at org.apache.xerces.impl.dtd.XMLDTDValidator.startDocument(Unknown Source) [2021-08-05T13:38:28.712Z] at org.apache.xerces.impl.XMLDocumentScannerImpl.startEntity(Unknown Source) [2021-08-05T13:38:28.712Z] at org.apache.xerces.impl.XMLVersionDetector.startDocumentParsing(Unknown Source) [2021-08-05T13:38:28.712Z] at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) [2021-08-05T13:38:28.712Z] at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) [2021-08-05T13:38:28.712Z] at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) [2021-08-05T13:38:28.712Z] at org.apache.xerces.parsers.DOMParser.parse(Unknown Source) [2021-08-05T13:38:28.712Z] at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source) [2021-08-05T13:38:28.712Z] at com.ibm.team.process.internal.common.util.XMLUtil.getXmlDocument(XMLUtil.java:167) [2021-08-05T13:38:28.712Z] at com.ibm.team.process.internal.client.ThinClientProcess.createRepresentation(ThinClientProcess.java:791) [2021-08-05T13:38:28.712Z] at com.ibm.team.process.internal.client.ThinClientProcess.fetchConfigurationData(ThinClientProcess.java:306) [2021-08-05T13:38:28.712Z] at com.ibm.team.process.internal.client.ThinClientProcess.getConfigurationData(ThinClientProcess.java:297) [2021-08-05T13:38:28.712Z] at com.ibm.team.process.internal.client.ThinClientProcess.getProjectConfigurationData(ThinClientProcess.java:278) [2021-08-05T13:38:28.712Z] at com.ibm.team.workitem.client.internal.AuditableClientProcess.findProcessConfiguration(AuditableClientProcess.java:72) [2021-08-05T13:38:28.712Z] at com.ibm.team.workitem.common.internal.ConfigurationItemManager.resolveProcessConfiguration(ConfigurationItemManager.java:124) [2021-08-05T13:38:28.712Z] at com.ibm.team.workitem.common.internal.ConfigurationItemManager.readConfigurationItems(ConfigurationItemManager.java:107) [2021-08-05T13:38:28.712Z] at com.ibm.team.workitem.common.internal.WorkItemTypeManager.readConfigurationItems(WorkItemTypeManager.java:379) [2021-08-05T13:38:28.712Z] at com.ibm.team.workitem.common.internal.ConfigurationItemManager.updateCache(ConfigurationItemManager.java:99) [2021-08-05T13:38:28.712Z] at com.ibm.team.workitem.common.internal.util.CacheHelper.internalCheckCache(CacheHelper.java:107) [2021-08-05T13:38:28.712Z] at com.ibm.team.workitem.common.internal.util.CacheHelper.checkCache(CacheHelper.java:73) [2021-08-05T13:38:28.712Z] at com.ibm.team.workitem.common.internal.util.CacheHelper.checkCache(CacheHelper.java:65) [2021-08-05T13:38:28.712Z] at com.ibm.team.workitem.common.internal.ConfigurationItemManager.findConfigurationItem(ConfigurationItemManager.java:70) [2021-08-05T13:38:28.712Z] at com.ibm.team.workitem.common.internal.WorkItemTypeManager.findConfigurationItem(WorkItemTypeManager.java:247) [2021-08-05T13:38:28.712Z] at com.ibm.team.workitem.common.internal.WorkItemTypeManager.findConfigurationItem(WorkItemTypeManager.java:242) [2021-08-05T13:38:28.712Z] at com.ibm.team.workitem.common.internal.WorkItemCommon.findWorkItemType(WorkItemCommon.java:452) [2021-08-05T13:38:28.712Z] at com.ibm.team.workitem.common.IWorkItemCommon$findWorkItemType$1.call(Unknown Source) [2021-08-05T13:38:28.712Z] at das.RTC.createWI(RTC.groovy:971) [2021-08-05T13:38:28.712Z] at das.RTC$createWI$9.call(Unknown Source) [2021-08-05T13:38:28.712Z] at Get_BD_Properties.run(Get_BD_Properties.groovy:28) [2021-08-05T13:38:28.712Z] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [2021-08-05T13:38:28.712Z] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) [2021-08-05T13:38:28.712Z] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)How would I correct such an issue? Do I need to exclude a jar from the classpath?And if the fix is not obtainable, is there another way to obtain an IWorkItemType other than through IWorkItemCommon.findWorkItemType?
One answer
There is a class loader error involving Xerces. I am not sure if Xerces should be involved. I would suggest to xheck if the Plain Java Code runs in Java only and then check with Groovy. In case that fails I'd try Groovy forums.
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