Fix #58

src/main/java/org/xmlet/xsdparser/core/XsdParserCore.java

@@ -392,31 +392,12 @@ private void resolveInnerRefs() {
             for (int i = 0; i < fileNameList.size(); i++) {
                 String fileName = fileNameList.get(i);
 
-                if (!doneList.get(i)) {
-                    List<String> includedFiles =
-                            parseElements.get(fileName)
-                                    .stream()
-                                    .filter(referenceBase -> referenceBase instanceof ConcreteElement && referenceBase.getElement() instanceof XsdInclude)
-                                    .map(referenceBase -> (((XsdInclude) referenceBase.getElement()).getSchemaLocation()))
-                                    .collect(Collectors.toList());
-
-                    Set<String> transitiveIncludes = new HashSet<>();
-
-                    for (String includedFile : includedFiles) {
-                        parseElements.keySet()
-                                .stream()
-                                .filter(fileNameAux -> fileNameAux.endsWith(includedFile))
-                                .findFirst()
-                                .ifPresent(fullIncludedFileName -> transitiveIncludes.addAll(parseElements.get(fullIncludedFileName)
-                                        .stream()
-                                        .filter(referenceBase -> referenceBase instanceof ConcreteElement && referenceBase.getElement() instanceof XsdInclude)
-                                        .map(referenceBase -> (((XsdInclude) referenceBase.getElement()).getSchemaLocation()))
-                                        .collect(Collectors.toList())));
-                    }
+                if (!doneList.get(i)){
+                    Set<String> includedFiles = new HashSet<>();
+                    includedFiles.add(fileName);
+                    findTransitiveDependencies(fileName, includedFiles);
 
-                    includedFiles.addAll((transitiveIncludes));
                     includedFiles.addAll(getResultXsdSchemas().filter(schema -> schema.getChildrenIncludes().anyMatch(xsdInclude -> xsdInclude.getSchemaLocation().equals(fileName))).map(XsdSchema::getFilePath).distinct().collect(Collectors.toList()));
-                    includedFiles = includedFiles.stream().distinct().collect(Collectors.toList());
 
                     List<ReferenceBase> includedElements = new ArrayList<>(parseElements.get(fileName));
 
@@ -446,8 +427,6 @@ private void resolveInnerRefs() {
                         unsolvedReferenceList = unsolvedReferenceList.stream().filter(u -> parserUnsolvedElementsMap.stream().noneMatch(u1 -> u == u1.getUnsolvedReference())).collect(Collectors.toList());
 
                         for (UnsolvedReference unsolvedReference : unsolvedReferenceList) {
-                            doneSomething = true;
-
                             replaceUnsolvedReference(concreteElementsMap, unsolvedReference, fileName);
                         }
 
@@ -460,6 +439,8 @@ private void resolveInnerRefs() {
 
                         if (currentUnsolvedReferenceListSize == startingUnsolvedReferenceListSize) {
                             solveMore = false;
+                        } else {
+                            doneSomething = true;
                         }
 
                         startingUnsolvedReferenceListSize = currentUnsolvedReferenceListSize;
@@ -481,6 +462,29 @@ private void resolveInnerRefs() {
         }
     }
 
+    private void findTransitiveDependencies(String fileName, Set<String> dependencies) {
+        List<String> includedFiles =
+                parseElements.get(fileName)
+                        .stream()
+                        .filter(referenceBase -> referenceBase instanceof ConcreteElement && referenceBase.getElement() instanceof XsdInclude)
+                        .map(referenceBase -> (((XsdInclude) referenceBase.getElement()).getSchemaLocation()))
+                        .map(this::toRealFileName)
+                        .filter(Optional::isPresent)
+                        .map(Optional::get)
+                        .collect(Collectors.toList());
+        for (String includedFile : includedFiles) {
+            if (dependencies.add(includedFile)) {
+                findTransitiveDependencies(includedFile, dependencies);
+            }
+        }
+    }
+    private Optional<String> toRealFileName(String fileName) {
+        return parseElements.keySet()
+                .stream()
+                .filter(fileNameAux -> fileNameAux.endsWith(fileName))
+                .findFirst();
+    }
+
     /**
      * Replaces a single {@link UnsolvedReference} object, with the respective {@link NamedConcreteElement} object. If
      * there isn't a {@link NamedConcreteElement} object to replace the {@link UnsolvedReference} object, information

src/test/java/org/xmlet/xsdparser/IssuesTest.java

@@ -777,6 +777,16 @@ public void testIssue53() {
         Assert.assertEquals("elem2", ((XsdElement) elem2).getName());
     }
 
+    @Test()
+    public void testIssue58(){
+        XsdParser parser = new XsdParser(getFilePath("issue_58/a.xsd"));
+
+        XsdElement elem = parser.getResultXsdElements().findFirst().get();
+        XsdNamedElements type = elem.getTypeAsXsd();
+        Assert.assertNotNull(type);
+        Assert.assertEquals("Foo", type.getName());
+    }
+
     @Test
     public void testIssue55_ResolveUnion() {
         XsdParser parser = new XsdParser(getFilePath("issue_25_amzn-base.xsd"));

src/test/resources/issue_58/a.xsd

@@ -0,0 +1,4 @@
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" xmlns="http://mytestns.org/issue58" targetNamespace="http://mytestns.org/issue58">
+    <xsd:include schemaLocation="b.xsd"/>
+    <xsd:element name="elem" type="Foo"/>
+</xsd:schema>

src/test/resources/issue_58/b.xsd

@@ -0,0 +1,3 @@
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" xmlns="http://mytestns.org/issue58" targetNamespace="http://mytestns.org/issue58">
+    <xsd:include schemaLocation="c.xsd"/>
+</xsd:schema>

src/test/resources/issue_58/c.xsd

@@ -0,0 +1,3 @@
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" xmlns="http://mytestns.org/issue58" targetNamespace="http://mytestns.org/issue58">
+    <xsd:include schemaLocation="d.xsd"/>
+</xsd:schema>

src/test/resources/issue_58/d.xsd

@@ -0,0 +1,4 @@
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" xmlns="http://mytestns.org/issue58" targetNamespace="http://mytestns.org/issue58">
+    <xsd:complexType name="Foo">
+    </xsd:complexType>
+</xsd:schema>