added option for java11

Author: HugoMario

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/AbstractJavaCodegen.java

@@ -58,6 +58,7 @@ public abstract class AbstractJavaCodegen extends DefaultCodegen implements Code
     public static final String DEFAULT_LIBRARY = "<default>";
     public static final String DATE_LIBRARY = "dateLibrary";
     public static final String JAVA8_MODE = "java8";
+    public static final String JAVA11_MODE = "java11";
     public static final String SUPPORT_ASYNC = "supportAsync";
     public static final String WITH_XML = "withXml";
     public static final String SUPPORT_JAVA6 = "supportJava6";
@@ -69,6 +70,7 @@ public abstract class AbstractJavaCodegen extends DefaultCodegen implements Code
     protected String dateLibrary = "threetenbp";
     protected boolean supportAsync = false;
     protected boolean java8Mode = false;
+    protected boolean java11Mode = false;
     protected boolean withXml = false;
     protected String invokerPackage = "io.swagger";
     protected String groupId = "io.swagger";
@@ -184,6 +186,7 @@ public AbstractJavaCodegen() {
         CliOption dateLibrary = new CliOption(DATE_LIBRARY, "Option. Date library to use");
         Map<String, String> dateOptions = new HashMap<String, String>();
         dateOptions.put("java8", "Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets \"" + JAVA8_MODE + "\" to true");
+        dateOptions.put("java11", "Java 11 native JSR384 (preferred for jdk 11+) - note: this also sets \"" + JAVA11_MODE + "\" to true");
         dateOptions.put("threetenbp", "Backport of JSR310 (preferred for jdk < 1.8)");
         dateOptions.put("java8-localdatetime", "Java 8 using LocalDateTime (for legacy app only)");
         dateOptions.put("java8-instant", "Java 8 using Instant");
@@ -199,6 +202,13 @@ public AbstractJavaCodegen() {
         java8Mode.setEnum(java8ModeOptions);
         cliOptions.add(java8Mode);
 
+        CliOption java11Mode = new CliOption(JAVA11_MODE, "Option. Use Java11 classes instead of third party equivalents");
+        Map<String, String> java11ModeOptions = new HashMap<String, String>();
+        java11ModeOptions.put("true", "Use Java 11 classes");
+        java11ModeOptions.put("false", "Various third party libraries as needed");
+        java11Mode.setEnum(java11ModeOptions);
+        cliOptions.add(java11Mode);
+
         cliOptions.add(CliOption.newBoolean(DISABLE_HTML_ESCAPING, "Disable HTML escaping of JSON strings when using gson (needed to avoid problems with byte[] fields)"));
         cliOptions.add(CliOption.newBoolean(CHECK_DUPLICATED_MODEL_NAME, "Check if there are duplicated model names (ignoring case)"));
         cliOptions.add(CliOption.newString(ADDITIONAL_MODEL_TYPE_ANNOTATIONS, "Additional annotations for model type(class level annotations)"));
@@ -453,12 +463,10 @@ public void processOpts() {
         // used later in recursive import in postProcessingModels
         importMapping.put("com.fasterxml.jackson.annotation.JsonProperty", "com.fasterxml.jackson.annotation.JsonCreator");
 
-        if (additionalProperties.containsKey(JAVA8_MODE)) {
-            setJava8Mode(Boolean.parseBoolean(additionalProperties.get(JAVA8_MODE).toString()));
-            if ( java8Mode ) {
-                additionalProperties.put("java8", true);
-            }
-        }
+        setJava8Mode(Boolean.parseBoolean(String.valueOf(additionalProperties.get(JAVA8_MODE))));
+        additionalProperties.put(JAVA8_MODE, java8Mode);
+        setJava11Mode(Boolean.parseBoolean(String.valueOf(additionalProperties.get(JAVA11_MODE))));
+        additionalProperties.put(JAVA11_MODE, java11Mode);
 
         if (additionalProperties.containsKey(SUPPORT_ASYNC)) {
             setSupportAsync(Boolean.parseBoolean(additionalProperties.get(SUPPORT_ASYNC).toString()));
@@ -1464,6 +1472,10 @@ public void setJava8Mode(boolean enabled) {
         this.java8Mode = enabled;
     }
 
+    public void setJava11Mode(boolean java11Mode) {
+        this.java11Mode = java11Mode;
+    }
+
     public void setDisableHtmlEscaping(boolean disabled) {
         this.disableHtmlEscaping = disabled;
     }