try to create test for XmlBeans-661

build.gradle

@@ -86,7 +86,8 @@ def testSchemas =  [
     [dir:'build/schemas/sTRANXML',path:'tranxml',name:'sTRANXML'],
     [dir:'src/test/resources/xbean/xmlobject',path:'CR192525.xsd defaults.xsd easypo.xsd easypo.xsdconfig enumtest.xsd enumtest.xsdconfig inttest.xsd listandunion.xsd nameworld.xsd numerals.xsd redefine2.xsd SelectAttribute.xsd SelectChildren.xsd selectChldAttTest.xsd soap-envelope.xsd soapfaults.xsd substgroup.xsd substgroup2.xsd Test.xsd Test36510.xsd Test40907.xsd version3.xsd', name:'sXMLOBJECT'],
     [dir:'src/test/resources/xbean/misc/jira',path:'xmlbeans_33b.xsd xmlbeans_46.xsd xmlbeans_48.xsd xmlbeans_64.xsd xmlbeans_68.xsd xmlbeans_71.xsd xmlbeans_98.xsd xmlbeans_99.xsd xmlbeans_105.xsd xmlbeans_175.xsd xmlbeans_177.xsd xmlbeans_177a.xsd xmlbeans_208.xsd xmlbeans_228.xsd xmlbeans_307_maxallowedenum.xsd xmlbeans_307_morethanallowedenum.xsd', name:'sJIRA' ],
-    [dir:'src/test/resources/xbean',path:'xmltokensource',name:'sTOKENSOURCE']
+    [dir:'src/test/resources/xbean',path:'xmltokensource',name:'sTOKENSOURCE'],
+    [dir:'src/test/resources/xbean',path:'labkey',name:'sLABKEY']
 ] + xsdDirs(file('src/test/resources/xbean/extensions')).withIndex().collect { element, index ->
     // the extensions need to be generated separately, because the *.xsdconfigs have overlapping definitions
     [dir:'src/test/resources/xbean/extensions',path:element,name:"sEXT${index}"]

build.xml

@@ -488,6 +488,7 @@
         <schemaComp schemaName="sVALIDATE" src="${cases.location}/xbean/ValidatingStream" dest="build/test-validate" classpathref="xmlbeans-test"/>
         <schemaComp schemaName="sUSERTYPE" src="${cases.location}/xbean/usertype" dest="build/test-usertype" classpathref="xmlbeans-test"/>
         <schemaComp schemaName="sLAX" src="${cases.location}/xbean/compile/scomp/detailed" dest="build/test-lax" classpathref="xmlbeans-test"/>
+        <schemaComp schemaName="sLABKEY" src="${cases.location}/xbean/labkey" dest="build/test-labkey" classpathref="xmlbeans-test"/>
 
         <pathconvert property="xmlobjects" pathsep=" ">
             <path>

src/test/java/org/apache/xmlbeans/impl/schema/XmlBeans661Test.java

@@ -0,0 +1,56 @@
+/*   Copyright 2004 The Apache Software Foundation
+ *
+ *   Licensed under the Apache License, Version 2.0 (the "License");
+ *   you may not use this file except in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.xmlbeans.impl.schema;
+
+import org.junit.jupiter.api.Test;
+import org.labkey.data.xml.queryCustomView.FilterType;
+import org.labkey.etl.xml.EtlDocument;
+import org.labkey.etl.xml.EtlType;
+import org.labkey.etl.xml.SourceObjectType;
+import org.labkey.etl.xml.TransformType;
+
+import java.net.URL;
+import java.util.Arrays;
+
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+// test for https://issues.apache.org/jira/browse/XMLBEANS-661
+// lots of classes and related xsds were copied into the test src
+// to avoid the issue of having to regenerate them in the build
+public class XmlBeans661Test {
+
+    @Test
+    public void testXmlBeans661() throws Exception {
+        URL dataUrl = XmlBeans661Test.class.getClassLoader()
+                .getResource("xbean/labkey/SourceToTarget2WithFilter.xml");
+        assertNotNull(dataUrl, "Test data file not found");
+        EtlDocument document = EtlDocument.Factory.parse(dataUrl.openStream());
+        EtlType etlXml = document.getEtl();
+        for (TransformType transformXml : etlXml.getTransforms().getTransformArray()) {
+            SourceObjectType source = transformXml.getSource();
+            assertNotNull(source, "Source not found");
+            assertTrue(source.isSetSourceFilters(), "Source filters not set");
+            // This is where the failure happened with the following error:
+            // Exception in thread "main" java.lang.ArrayStoreException: arraycopy: element type mismatch: can not cast one of the elements of java.lang.Object[] to the type of the destination array, org.labkey.data.xml.queryCustomView.FilterType
+            FilterType[] filterTypes = source.getSourceFilters().getSourceFilterArray();
+            assertNotNull(filterTypes, "Source filters should not be null");
+            assertNotEquals(0, filterTypes.length, "Source filters should not be empty");
+            Arrays.stream(filterTypes).map(Object::toString).forEach(System.out::println);
+        }
+    }
+}

src/test/resources/xbean/labkey/SourceToTarget2WithFilter.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright 2004 The Apache Software Foundation
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License. -->
+<etl xmlns="http://labkey.org/etl/xml" transactDestinationSchema="etltest">
+    <name>Source to target with sourceFilter</name>
+    <description>append rows from source to target with a sourceFilter</description>
+    <transforms>
+        <transform id="step1" type="org.labkey.di.pipeline.TransformTask">
+            <description>Copy to target</description>
+            <source schemaName="etltest" queryName="source">
+                <sourceFilters>
+                    <sourceFilter column="name" value="Filter1" operator="eq"/>
+                </sourceFilters>
+            </source>
+            <destination schemaName="etltest" queryName="target" targetOption="merge">
+                <alternateKeys>
+                    <column name="id"/>
+                </alternateKeys>
+            </destination>
+        </transform>
+        <transform id="step2" type="org.labkey.di.pipeline.TransformTask">
+            <description>Copy to target2</description>
+            <source schemaName="etltest" queryName="source">
+                <sourceFilters>
+                    <sourceFilter column="name" value="Filter1;Filter2" operator="in" />
+                </sourceFilters>
+            </source>
+            <destination schemaName="etltest" queryName="target2" targetOption="merge">
+                <alternateKeys>
+                    <column name="id"/>
+                </alternateKeys>
+            </destination>
+        </transform>
+    </transforms>
+    <incrementalFilter className="ModifiedSinceFilterStrategy" timestampColumnName="modified" />
+    <schedule>
+        <poll interval="15s" />
+    </schedule>
+</etl>