more edge cases

Author: andreaTP

crd-generator/api/src/main/java/io/fabric8/crd/generator/AbstractJsonSchema.java

@@ -416,12 +416,20 @@ private T internalFromImpl(String name, TypeRef typeRef, Set<String> visited) {
               .toArray(JsonNode[]::new);
             return enumProperty(enumValues);
           } else {
-            String visitedName = def.getFullyQualifiedName() + "-" + name;
-            if (!def.getFullyQualifiedName().startsWith("java") && visited.contains(visitedName)) {
-              throw new IllegalArgumentException("Found a cyclic reference involving the field " + name + " of type " + def.getFullyQualifiedName());
+            if (!resolving) {
+              visited.clear();
+              resolving = true;
+            } else {
+              String visitedName = name + ":" + classRef;
+              if (!def.getFullyQualifiedName().startsWith("java") && visited.contains(visitedName)) {
+                throw new IllegalArgumentException("Found a cyclic reference involving the field " + name + " of type " + classRef.getFullyQualifiedName());
+              }
+              visited.add(visitedName);
             }
-            visited.add(visitedName);
-            return internalFromImpl(def, visited);
+
+            T res = internalFromImpl(def, visited);
+            resolving = false;
+            return res;
           }
 
         }
@@ -430,6 +438,9 @@ private T internalFromImpl(String name, TypeRef typeRef, Set<String> visited) {
     }
   }
 
+  // Flag to detect cycles
+  private boolean resolving = false;
+
   /**
    * Builds the schema for specifically handled property types (e.g. intOrString properties)
    *

crd-generator/api/src/test/java/io/fabric8/crd/example/cyclic/CyclicStatus.java

@@ -17,12 +17,4 @@
 
 public class CyclicStatus {
   private String message;
-
-  public String getMessage() {
-    return message;
-  }
-
-  public void setMessage(String message) {
-    this.message = message;
-  }
 }

crd-generator/api/src/test/java/io/fabric8/crd/example/nocyclic/NoCyclicStatus.java

@@ -17,13 +17,5 @@
 
 public class NoCyclicStatus {
   private String message;
-  // private Ref ref1;
-
-  public String getMessage() {
-    return message;
-  }
-
-  public void setMessage(String message) {
-    this.message = message;
-  }
+  private Ref ref1;
 }

crd-generator/api/src/test/java/io/fabric8/crd/example/nocyclic/Ref.java

@@ -19,4 +19,8 @@ public class Ref {
 
   private int ref;
 
+  protected Inner inner;
+
+  public static class Inner { }
+
 }