--- fop-2.5/fop-events/src/main/java/org/apache/fop/tools/EventProducerCollector.java	2020-05-05 11:42:05.000000000 +0200
+++ fop-2.5/fop-events/src/main/java/org/apache/fop/tools/EventProducerCollector.java	2020-06-03 10:49:58.195555295 +0200
@@ -21,6 +21,7 @@
 
 import java.io.File;
 import java.io.IOException;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
@@ -31,14 +32,11 @@
 import org.apache.fop.events.model.EventProducerModel;
 import org.apache.fop.events.model.EventSeverity;
 
-import com.thoughtworks.qdox.JavaDocBuilder;
-import com.thoughtworks.qdox.model.DefaultDocletTagFactory;
+import com.thoughtworks.qdox.JavaProjectBuilder;
 import com.thoughtworks.qdox.model.DocletTag;
-import com.thoughtworks.qdox.model.DocletTagFactory;
 import com.thoughtworks.qdox.model.JavaClass;
 import com.thoughtworks.qdox.model.JavaMethod;
 import com.thoughtworks.qdox.model.JavaParameter;
-import com.thoughtworks.qdox.model.Type;
 
 /**
  * Finds EventProducer interfaces and builds the event model for them.
@@ -61,22 +59,12 @@
         PRIMITIVE_MAP = Collections.unmodifiableMap(m);
     }
 
-    private DocletTagFactory tagFactory;
     private List<EventModel> models = new java.util.ArrayList<EventModel>();
 
     /**
      * Creates a new EventProducerCollector.
      */
     EventProducerCollector() {
-        this.tagFactory = createDocletTagFactory();
-    }
-
-    /**
-     * Creates the {@link DocletTagFactory} to be used by the collector.
-     * @return the doclet tag factory
-     */
-    protected DocletTagFactory createDocletTagFactory() {
-        return new DefaultDocletTagFactory();
     }
 
     /**
@@ -89,9 +77,9 @@
      */
     public boolean scanFile(File src)
             throws IOException, EventConventionException, ClassNotFoundException {
-        JavaDocBuilder builder = new JavaDocBuilder(this.tagFactory);
+        JavaProjectBuilder builder = new JavaProjectBuilder();
         builder.addSource(src);
-        JavaClass[] classes = builder.getClasses();
+        Collection<JavaClass> classes = builder.getClasses();
         boolean eventProducerFound = false;
         for (JavaClass clazz : classes) {
             if (clazz.isInterface() && implementsInterface(clazz, CLASSNAME_EVENT_PRODUCER)) {
@@ -103,7 +91,7 @@
     }
 
     private boolean implementsInterface(JavaClass clazz, String intf) {
-        JavaClass[] classes = clazz.getImplementedInterfaces();
+        List<JavaClass> classes = clazz.getInterfaces();
         for (JavaClass cl : classes) {
             if (cl.getFullyQualifiedName().equals(intf)) {
                 return true;
@@ -121,7 +109,7 @@
     protected void processEventProducerInterface(JavaClass clazz)
                 throws EventConventionException, ClassNotFoundException {
         EventProducerModel prodMeta = new EventProducerModel(clazz.getFullyQualifiedName());
-        JavaMethod[] methods = clazz.getMethods(true);
+        List<JavaMethod> methods = clazz.getMethods(true);
         for (JavaMethod method : methods) {
             EventMethodModel methodMeta = createMethodModel(method);
             prodMeta.addMethod(methodMeta);
@@ -133,20 +121,20 @@
 
     private EventMethodModel createMethodModel(JavaMethod method)
             throws EventConventionException, ClassNotFoundException {
-        JavaClass clazz = method.getParentClass();
+        JavaClass clazz = method.getDeclaringClass();
         //Check EventProducer conventions
-        if (!method.getReturnType().isVoid()) {
+        if (!method.getReturns().isVoid()) {
             throw new EventConventionException("All methods of interface "
                     + clazz.getFullyQualifiedName() + " must have return type 'void'!");
         }
         String methodSig = clazz.getFullyQualifiedName() + "." + method.getCallSignature();
-        JavaParameter[] params = method.getParameters();
-        if (params.length < 1) {
+        List<JavaParameter> params = method.getParameters();
+        if (params.size() < 1) {
             throw new EventConventionException("The method " + methodSig
                     + " must have at least one parameter: 'Object source'!");
         }
-        Type firstType = params[0].getType();
-        if (firstType.isPrimitive() || !"source".equals(params[0].getName())) {
+        JavaClass firstType = params.get(0).getJavaClass();
+        if (firstType.isPrimitive() || !"source".equals(params.get(0).getName())) {
             throw new EventConventionException("The first parameter of the method " + methodSig
                     + " must be: 'Object source'!");
         }
@@ -161,12 +149,12 @@
         }
         EventMethodModel methodMeta = new EventMethodModel(
                 method.getName(), severity);
-        if (params.length > 1) {
-            for (int j = 1, cj = params.length; j < cj; j++) {
-                JavaParameter p = params[j];
+        if (params.size() > 1) {
+            for (int j = 1, cj = params.size(); j < cj; j++) {
+                JavaParameter p = params.get(j);
                 Class<?> type;
-                JavaClass pClass = p.getType().getJavaClass();
-                if (p.getType().isPrimitive()) {
+                JavaClass pClass = p.getJavaClass();
+                if (pClass.isPrimitive()) {
                     type = PRIMITIVE_MAP.get(pClass.getName());
                     if (type == null) {
                         throw new UnsupportedOperationException(
@@ -179,10 +167,10 @@
                 methodMeta.addParameter(type, p.getName());
             }
         }
-        Type[] exceptions = method.getExceptions();
-        if (exceptions != null && exceptions.length > 0) {
+        List<JavaClass> exceptions = method.getExceptions();
+        if (exceptions != null && exceptions.size() > 0) {
             //We only use the first declared exception because that is always thrown
-            JavaClass cl = exceptions[0].getJavaClass();
+            JavaClass cl = exceptions.get(0);
             methodMeta.setExceptionClass(cl.getFullyQualifiedName());
             methodMeta.setSeverity(EventSeverity.FATAL); //In case it's not set in the comments
         }