Negate state value.

@@ -63,7 +63,7 @@
                         </executions>
                         <configuration>
                             <packageName>pl.com.it_crowd.youtrack.api.rest</packageName>
-                            <outputDirectory>${build.sourceDirectory}</outputDirectory>
+                            <outputDirectory>${project.build.sourceDirectory}</outputDirectory>
                             <clearOutputDir>false</clearOutputDir>
                             <extension>false</extension>
                         </configuration>

@@ -58,7 +58,7 @@ public final class Filter {
         return new Filter().resolved(date);
     }
 
-    public static Filter stateFilter(StateValues state)
+    public static Filter stateFilter(StateValues... state)
     {
         return new Filter().state(state);
     }
@@ -191,9 +191,13 @@ public final class Filter {
         return this;
     }
 
-    public Filter state(StateValues state)
+    public Filter state(StateValues... state)
     {
-        return state(state.getFilterValue());
+        final StringBuilder stringBuilder = new StringBuilder();
+        for (StateValues value : state) {
+            stringBuilder.append(",").append(value.getFilterValue());
+        }
+        return state(stringBuilder.length() > 0 ? stringBuilder.substring(1) : stringBuilder.toString());
     }
 
     public Filter summary(String summary)

 package pl.com.it_crowd.youtrack.api.defaults;
 
 public enum StateValues {
-    Submitted, Open, InProgress("{In Progress}", "In Progress"), ToBeDiscussed("{To be discussed}", "To be discussed"), Reopened, CantReproduce(
-        "{Can't Reproduce}", "Can't Reproduce"), Duplicate, Fixed, WontFix("{Won't fix}", "Won't fix"),
-    Incomplete, Obsolete, Verified, New, Resolved("Resolved", null), Unresolved("Unresolved", null);
+    Submitted,
+    Open,
+    InProgress("{In Progress}", "In Progress"),
+    ToBeDiscussed("{To be discussed}", "To be discussed"),
+    Reopened,
+    CantReproduce("{Can't Reproduce}", "Can't Reproduce"),
+    Duplicate,
+    Fixed,
+    WontFix("{Won't fix}", "Won't fix"),
+    Incomplete,
+    Obsolete,
+    Verified,
+    New,
+    NotSubmitted(true, Submitted),
+    NotOpen(true, Open),
+    NotInProgress(true, InProgress),
+    NotToBeDiscussed(true, ToBeDiscussed),
+    NotReopened(true, Reopened),
+    NotCantReproduce(true, CantReproduce),
+    NotDuplicate(true, Duplicate),
+    NotFixed(true, Fixed),
+    NotWontFix(true, WontFix),
+    NotIncomplete(true, Incomplete),
+    NotObsolete(true, Open),
+    NotVerified(true, Verified),
+    NotNew(true, New),
+    Resolved("Resolved", null),
+    Unresolved("Unresolved", null);
 
 // ------------------------------ FIELDS ------------------------------
 
@@ -11,29 +36,54 @@ public enum StateValues {
 
     private String filterValue;
 
+    private boolean not;
+
 // --------------------------- CONSTRUCTORS ---------------------------
 
     private StateValues()
     {
-        filterValue = name();
-        commandValue = name();
+        this(false);
+    }
+
+    private StateValues(boolean not)
+    {
+        this(not, null, null);
     }
 
     private StateValues(String filterValue, String commandValue)
     {
-        this.filterValue = filterValue;
-        this.commandValue = commandValue;
+        this(false, filterValue, commandValue);
+    }
+
+    private StateValues(boolean not, StateValues value)
+    {
+        this(not, value.getFilterValue(), value.getCommandValue());
+    }
+
+    private StateValues(boolean not, String filterValue, String commandValue)
+    {
+        this.not = not;
+        this.filterValue = filterValue == null ? name() : filterValue;
+        this.commandValue = commandValue == null ? name() : commandValue;
+    }
+
+// ------------------------ CANONICAL METHODS ------------------------
+
+    @Override
+    public String toString()
+    {
+        return getCommandValue();
     }
 
-// --------------------- GETTER / SETTER METHODS ---------------------
+// -------------------------- OTHER METHODS --------------------------
 
     public String getCommandValue()
     {
-        return commandValue;
+        return (not ? "-" : "") + commandValue;
     }
 
     public String getFilterValue()
     {
-        return filterValue;
+        return (not ? "-" : "") + filterValue;
     }
 }

@@ -119,6 +119,10 @@ public class FilterTest {
         Assert.assertEquals("state:" + encodeURL("Obsolete"), Filter.stateFilter(StateValues.Obsolete).toString());
         Assert.assertEquals("state:" + encodeURL("Open"), Filter.stateFilter(StateValues.Open).toString());
         Assert.assertEquals("state:" + encodeURL("{Won't fix}"), Filter.stateFilter(StateValues.WontFix).toString());
+        Assert.assertEquals("state:" + encodeURL("-{Won't fix}"), Filter.stateFilter(StateValues.NotWontFix).toString());
+        Assert.assertEquals("state:" + encodeURL("-Verified"), Filter.stateFilter(StateValues.NotVerified).toString());
+        Assert.assertEquals("state:" + encodeURL("-Verified,{Can't Reproduce},Obsolete,{Won't fix}"),
+            Filter.stateFilter(StateValues.NotVerified, StateValues.CantReproduce, StateValues.Obsolete, StateValues.WontFix).toString());
     }
 
     @Test
@@ -143,7 +147,6 @@ public class FilterTest {
     }
 
     @Test
-
     public void updaterFilter()
     {
         Assert.assertEquals("updated by:bernard", Filter.updaterFilter("bernard").toString());