Copying

src/main/java/com/helger/jcodemodel/AbstractJAnnotationValueOwned.java

@@ -62,10 +62,16 @@ protected JEnumConstantExpr (@Nonnull final Enum <?> aEnumConstant)
       m_aEnumConstant = ValueEnforcer.notNull (aEnumConstant, "EnumConstant");
     }
 
+    @Override
     public void generate (@Nonnull final IJFormatter f)
     {
       f.type (owner ().ref (m_aEnumConstant.getDeclaringClass ())).print ('.').print (m_aEnumConstant.name ());
     }
+
+    public Enum <?> getEnumConstant ()
+    {
+      return m_aEnumConstant;
+    }
   }
 
   protected static final class FullClassNameExpr implements IJExpression
@@ -77,6 +83,7 @@ protected FullClassNameExpr (@Nonnull final Class <?> aClass)
       m_aClass = ValueEnforcer.notNull (aClass, "Class");
     }
 
+    @Override
     public void generate (@Nonnull final IJFormatter f)
     {
       f.print (JCNameUtilities.getFullName (m_aClass)).print (".class");

src/main/java/com/helger/jcodemodel/JCodeModel.java

@@ -40,6 +40,11 @@
  */
 package com.helger.jcodemodel;
 
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -223,7 +228,7 @@ public final IFileSystemConvention getFileSystemConvention ()
    */
   @Nonnull
   public final IFileSystemConvention setFileSystemConvention (@Nonnull final IFileSystemConvention aFSConvention) throws JCaseSensitivityChangeException,
-                                                                                                                  JInvalidFileNameException
+  JInvalidFileNameException
   {
     ValueEnforcer.notNull (aFSConvention, "FSConvention");
     if (aFSConvention == m_aFSConvention)
@@ -464,15 +469,15 @@ public List <JResourceDir> getAllResourceDirs ()
    */
   @Nonnull
   public JDefinedClass _class (final int nMods,
-                               @Nonnull final String sFullyQualifiedClassName,
-                               @Nonnull final EClassType eClassType) throws JCodeModelException
+      @Nonnull final String sFullyQualifiedClassName,
+      @Nonnull final EClassType eClassType) throws JCodeModelException
   {
     final int nIdx = sFullyQualifiedClassName.lastIndexOf (JPackage.SEPARATOR);
     if (nIdx < 0)
       return rootPackage ()._class (nMods, sFullyQualifiedClassName, eClassType);
     return _package (sFullyQualifiedClassName.substring (0, nIdx))._class (nMods,
-                                                                           sFullyQualifiedClassName.substring (nIdx + 1),
-                                                                           eClassType);
+        sFullyQualifiedClassName.substring (nIdx + 1),
+        eClassType);
   }
 
   /**
@@ -520,7 +525,7 @@ public JDefinedClass _class (final int nMods, @Nonnull final String sFullyQualif
    */
   @Nonnull
   public JDefinedClass _class (@Nonnull final String sFullyQualifiedClassName,
-                               @Nonnull final EClassType eClassType) throws JCodeModelException
+      @Nonnull final EClassType eClassType) throws JCodeModelException
   {
     return _class (JMod.PUBLIC, sFullyQualifiedClassName, eClassType);
   }
@@ -769,7 +774,7 @@ public AbstractJClass ref (@Nonnull final Class <?> aClazz)
    */
   @Nonnull
   public JDefinedClass ref (@Nonnull final TypeElement aElement, @Nonnull final Elements aElementUtils) throws ErrorTypeFound,
-                                                                                                        CodeModelBuildingException
+  CodeModelBuildingException
   {
     final JCodeModelJavaxLangModelAdapter adapter = new JCodeModelJavaxLangModelAdapter (this, aElementUtils);
     return adapter.getClass (aElement);
@@ -806,7 +811,7 @@ public JDefinedClass ref (@Nonnull final TypeElement aElement, @Nonnull final El
    */
   @Nonnull
   public JDefinedClass refWithErrorTypes (@Nonnull final TypeElement aElement,
-                                          @Nonnull final Elements aElementUtils) throws CodeModelBuildingException
+      @Nonnull final Elements aElementUtils) throws CodeModelBuildingException
   {
     final JCodeModelJavaxLangModelAdapter adapter = new JCodeModelJavaxLangModelAdapter (this, aElementUtils);
     return adapter.getClassWithErrorTypes (aElement);
@@ -1083,4 +1088,36 @@ public Set <AbstractJClass> getAllDontImportClasses ()
   {
     return new HashSet <> (m_aDontImportClasses);
   }
+
+  /**
+   * copy a codemodel using serialization.
+   *
+   * @param source
+   *        codemodel to copy
+   * @return a deserialization of the serialization of the source.
+   */
+  public static JCodeModel copySerial (JCodeModel source)
+  {
+    try
+    {
+      ByteArrayOutputStream buffer = new ByteArrayOutputStream ();
+      new ObjectOutputStream (buffer).writeObject (source);
+      ByteArrayInputStream in = new ByteArrayInputStream (buffer.toByteArray ());
+      return (JCodeModel) new ObjectInputStream (in).readObject ();
+    }
+    catch (IOException | ClassNotFoundException e)
+    {
+      throw new UnsupportedOperationException ("catch this", e);
+    }
+  }
+
+  /**
+   * create a new copy of this model
+   *
+   * @return a new object, which should have the same representation but not linked to this in any way.
+   */
+  public JCodeModel copy ()
+  {
+    return copySerial (this);
+  }
 }

src/main/java/com/helger/jcodemodel/JReferencedClass.java

@@ -76,6 +76,11 @@ class JReferencedClass extends AbstractJClass implements IJDeclaration
     assert !m_aClass.isArray ();
   }
 
+  public Class <?> getReferencedClass ()
+  {
+    return m_aClass;
+  }
+
   @Override
   public String name ()
   {
@@ -142,17 +147,20 @@ public Iterator <AbstractJClass> _implements ()
     {
       private int m_nIdx = 0;
 
+      @Override
       public boolean hasNext ()
       {
         return m_nIdx < aInterfaces.length;
       }
 
+      @Override
       @Nonnull
       public AbstractJClass next ()
       {
         return owner ().ref (aInterfaces[m_nIdx++]);
       }
 
+      @Override
       public void remove ()
       {
         throw new UnsupportedOperationException ();
@@ -189,6 +197,7 @@ public final JPrimitiveType getPrimitiveType ()
     return m_aPrimitiveType;
   }
 
+  @Override
   public void declare (final IJFormatter f)
   {
     // Nothing to do here...
@@ -203,7 +212,7 @@ public void declare (final IJFormatter f)
 
   @Override
   protected AbstractJClass substituteParams (@Nonnull final JTypeVar [] aVariables,
-                                             @Nonnull final List <? extends AbstractJClass> aBindings)
+      @Nonnull final List <? extends AbstractJClass> aBindings)
   {
     // TODO: does JDK 1.5 reflection provides these information?
     return this;

src/main/java/com/helger/jcodemodel/JResourceDir.java

@@ -41,6 +41,7 @@
 package com.helger.jcodemodel;
 
 import java.io.File;
+import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
@@ -66,7 +67,7 @@
  *
  * @since 3.3.1
  */
-public class JResourceDir implements IJOwned
+public class JResourceDir implements IJOwned, Serializable
 {
   public static final char SEPARATOR = FilenameHelper.UNIX_SEPARATOR;
   public static final String SEPARATOR_STR = Character.toString (SEPARATOR);
@@ -105,8 +106,8 @@ public class JResourceDir implements IJOwned
    *         If a part of the package name is not a valid filename part.
    */
   protected JResourceDir (@Nonnull final JCodeModel aOwner,
-                          @Nullable final JResourceDir aParentDir,
-                          @Nonnull final String sName) throws JInvalidFileNameException
+      @Nullable final JResourceDir aParentDir,
+      @Nonnull final String sName) throws JInvalidFileNameException
   {
     ValueEnforcer.notNull (sName, "Name");
     ValueEnforcer.notNull (aOwner, "CodeModel");

src/main/java/com/helger/jcodemodel/JTypeVarClass.java

@@ -59,6 +59,11 @@ protected JTypeVarClass (@Nonnull final AbstractJClass aClass)
     m_aClass = aClass;
   }
 
+  public AbstractJClass getRefClass ()
+  {
+    return m_aClass;
+  }
+
   @Override
   @Nonnull
   public String name ()
@@ -68,10 +73,8 @@ public String name ()
     {
       final JTypeVar [] aTypeParams = ((JDefinedClass) m_aClass).typeParams ();
       if (aTypeParams.length > 0)
-      {
         // We need the type params here!
         return new JNarrowedClass (m_aClass, aTypeParams).name ();
-      }
     }
     return m_aClass.name ();
   }
@@ -82,10 +85,8 @@ public String fullName ()
   {
     // This method is e.g. used for import statements
     if (m_aClass instanceof JNarrowedClass)
-    {
       // Avoid the type parameters
       return ((JNarrowedClass) m_aClass).erasure ().fullName ();
-    }
     return m_aClass.fullName ();
   }
 

src/main/java/com/helger/jcodemodel/JVar.java

@@ -95,9 +95,9 @@ public class JVar implements IJAssignmentTarget, IJDeclaration, IJAnnotatable
    *        Value to initialize this variable to
    */
   public JVar (@Nonnull final JMods aMods,
-               @Nonnull final AbstractJType aType,
-               @Nonnull final String sName,
-               @Nullable final IJExpression aInitExpr)
+      @Nonnull final AbstractJType aType,
+      @Nonnull final String sName,
+      @Nullable final IJExpression aInitExpr)
   {
     ValueEnforcer.isTrue (JJavaName.isJavaIdentifier (sName), () -> "Illegal variable name '" + sName + "'");
     m_aMods = aMods;
@@ -189,13 +189,19 @@ public AbstractJType type (@Nonnull final AbstractJType aNewType)
     return aOldType;
   }
 
+  public List <JAnnotationUse> getAnnotations ()
+  {
+    return m_aAnnotations == null ? Collections.emptyList () : m_aAnnotations;
+  }
+
   /**
    * Adds an annotation to this variable.
    *
    * @param aClazz
    *        The annotation class to annotate the field with
    * @return New {@link JAnnotationUse}
    */
+  @Override
   @Nonnull
   public JAnnotationUse annotate (@Nonnull final AbstractJClass aClazz)
   {
@@ -213,6 +219,7 @@ public JAnnotationUse annotate (@Nonnull final AbstractJClass aClazz)
    *        The annotation class to annotate the field with
    * @return New {@link JAnnotationUse}
    */
+  @Override
   @Nonnull
   public JAnnotationUse annotate (@Nonnull final Class <? extends Annotation> aClazz)
   {
@@ -227,6 +234,7 @@ public List <JAnnotationUse> annotationsMutable ()
     return m_aAnnotations;
   }
 
+  @Override
   @Nonnull
   public List <JAnnotationUse> annotations ()
   {
@@ -257,11 +265,13 @@ public void bind (@Nonnull final IJFormatter f)
       f.print ('=').generable (m_aInitExpr);
   }
 
+  @Override
   public void declare (@Nonnull final IJFormatter f)
   {
     f.var (this).print (';').newline ();
   }
 
+  @Override
   public void generate (@Nonnull final IJFormatter f)
   {
     f.id (m_sName);

src/main/java/com/helger/jcodemodel/util/ClassNameComparator.java

@@ -40,6 +40,7 @@
  */
 package com.helger.jcodemodel.util;
 
+import java.io.Serializable;
 import java.util.Comparator;
 
 import javax.annotation.Nonnull;
@@ -52,7 +53,7 @@
  *
  * @author Kohsuke Kawaguchi ([email protected])
  */
-public final class ClassNameComparator implements Comparator <AbstractJClass>
+public final class ClassNameComparator implements Comparator <AbstractJClass>, Serializable
 {
   private static final ClassNameComparator s_aInstance = new ClassNameComparator ();
 
@@ -70,6 +71,7 @@ public static ClassNameComparator getInstance ()
    * to packages java and javax over all others. This method is used to sort
    * generated import statements in a conventional way for readability.
    */
+  @Override
   public int compare (@Nonnull final AbstractJClass aObj1, @Nonnull final AbstractJClass aObj2)
   {
     if (aObj1.isError () && aObj2.isError ())

src/main/java/com/helger/jcodemodel/util/FSName.java

@@ -40,6 +40,7 @@
  */
 package com.helger.jcodemodel.util;
 
+import java.io.Serializable;
 import java.util.Locale;
 
 import javax.annotation.Nonnull;
@@ -55,7 +56,7 @@
  * @author Philip Helger
  * @since 3.4.0
  */
-public final class FSName implements Comparable <FSName>
+public final class FSName implements Comparable <FSName>, Serializable
 {
   private final String m_sName;
   private final String m_sKey;
@@ -94,6 +95,7 @@ public int hashCode ()
     return ret;
   }
 
+  @Override
   public int compareTo (@Nonnull final FSName o)
   {
     return m_sKey.compareTo (o.m_sKey);