Adds anytype detection

Author: spacether

samples/client/petstore/java/src/main/java/org/openapijsonschematools/components/schemas/ArrayHoldingAnyType.java

@@ -5,6 +5,7 @@
 import java.util.LinkedHashSet;
 import java.util.Set;
 import java.util.List;
+import org.openapijsonschematools.schemas.AnyTypeJsonSchema;
 import org.openapijsonschematools.schemas.FrozenList;
 
 public class ArrayHoldingAnyType {

samples/client/petstore/java/src/main/java/org/openapijsonschematools/components/schemas/User.java

@@ -7,6 +7,7 @@
 import java.util.AbstractMap;
 import java.util.LinkedHashMap;
 import java.util.Map;
+import org.openapijsonschematools.schemas.AnyTypeJsonSchema;
 import org.openapijsonschematools.schemas.FrozenMap;
 import org.openapijsonschematools.schemas.Int32JsonSchema;
 import org.openapijsonschematools.schemas.Int64JsonSchema;

src/main/java/org/openapijsonschematools/codegen/generators/JavaClientGenerator.java

@@ -1245,6 +1245,8 @@ public Set<String> getImports(String sourceJsonPath, CodegenSchema schema, Featu
                 imports.add("import "+packageName + ".schemas.AnyTypeJsonSchema;");
             } else if (schema.isBooleanSchemaFalse) {
                 imports.add("import "+packageName + ".schemas.NotAnyTypeJsonSchema;");
+            } else if (schema.isSimpleAnyType()) {
+                imports.add("import "+packageName + ".schemas.AnyTypeJsonSchema;");
             }
         }
         return imports;

src/main/java/org/openapijsonschematools/codegen/generators/openapimodels/CodegenSchema.java

@@ -241,6 +241,16 @@ public boolean isSimpleArray() {
         return true;
     }
 
+    public boolean isSimpleAnyType() {
+        if (types != null) {
+            return false;
+        }
+        if (allOf != null || anyOf != null || oneOf != null || not != null || if_ != null || then != null || else_ != null || enumInfo != null || constInfo != null || properties != null || requiredProperties != null || hasDiscriminatorWithNonEmptyMapping() != false || additionalProperties != null || dependentRequired != null || dependentSchemas != null || propertyNames != null || maxProperties != null || minProperties != null || patternProperties != null || unevaluatedProperties != null || items != null || uniqueItems != null || maxItems != null || minItems != null || contains != null || maxContains != null || minContains != null || prefixItems != null || unevaluatedItems != null || format != null || maxLength != null || minLength != null || maximum != null || minimum != null || multipleOf != null || patternInfo != null || refInfo != null) {
+            return false;
+        }
+        return true;
+    }
+
     public CodegenSchema typeSchema() {
         CodegenSchema schema = new CodegenSchema();
         schema.refInfo = refInfo;