[JAVA - jaxrs-reasteasy-eap] Add import to models (#179)

Call super management for managing imports in postProcessModelProperty

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/JavaResteasyEapServerCodegen.java

@@ -147,6 +147,7 @@ public Map<String, Object> postProcessOperations(Map<String, Object> objs) {
 
     @Override
     public void postProcessModelProperty(CodegenModel model, CodegenProperty property) {
+        super.postProcessModelProperty(model, property);
         // Add imports for Jackson
         if (!BooleanUtils.toBoolean(model.isEnum)) {
             model.imports.add("JsonProperty");

modules/openapi-generator/src/test/java/org/openapitools/codegen/java/jaxrs/JavaResteasyEapServerCodegenModelTest.java

@@ -0,0 +1,29 @@
+package org.openapitools.codegen.java.jaxrs;
+
+import io.swagger.util.Json;
+import io.swagger.v3.oas.models.media.MapSchema;
+import io.swagger.v3.oas.models.media.Schema;
+import org.openapitools.codegen.CodegenModel;
+import org.openapitools.codegen.languages.JavaResteasyEapServerCodegen;
+import org.testng.annotations.Test;
+
+import java.util.Collections;
+
+import static org.testng.Assert.assertEquals;
+import static org.testng.Assert.assertTrue;
+
+public class JavaResteasyEapServerCodegenModelTest {
+
+    @Test(description = "convert a simple java model with java8 types")
+    public void mapModelTest() {
+        final Schema model = new Schema()
+                .description("A model with a map")
+                .addProperties("map", new MapSchema());
+
+        final JavaResteasyEapServerCodegen codegen = new JavaResteasyEapServerCodegen();
+        final CodegenModel cm = codegen.fromModel("sample", model, Collections.singletonMap("sample", model));
+
+        assertEquals(cm.vars.get(0).baseType, "Map");
+        assertTrue(cm.imports.contains("HashMap"));
+    }
+}