fixed copying resource if pattern starts with '/' and test added

jps/src/org/jetbrains/jps/idea/IdeaProjectLoader.groovy

@@ -142,6 +142,9 @@ public class IdeaProjectLoader {
     if (pattern.indexOf('/') == -1) {
       return "**/" + pattern
     }
+    if (pattern.startsWith("/")) {
+      return pattern.substring(1)
+    }
     return pattern
   }
 

jps/testData/resourceCopying/resourceCopying.iml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
+

jps/testData/resourceCopying/resourceCopying.ipr

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <option name="DEFAULT_COMPILER" value="Javac" />
+    <resourceExtensions>
+      <entry name=".+\.(properties|xml|html|dtd|tld)" />
+      <entry name=".+\.(gif|png|jpeg|jpg)" />
+    </resourceExtensions>
+    <wildcardResourcePatterns>
+      <entry name="/copy/*" />
+      <entry name="*.html" />
+      <entry name="?.txt" />
+      <entry name="copyTree/**/*.txt" />
+    </wildcardResourcePatterns>
+    <annotationProcessing enabled="false" useClasspath="true" />
+  </component>
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/resourceCopying.iml" filepath="$PROJECT_DIR$/resourceCopying.iml" />
+    </modules>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_5" assert-keyword="true" jdk-15="true" project-jdk-name="1.6" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
+

jps/testSrc/org/jetbrains/jps/ResourceCopyingTest.groovy

@@ -0,0 +1,26 @@
+package org.jetbrains.jps
+
+/**
+ * @author nik
+ */
+class ResourceCopyingTest extends JpsBuildTestCase {
+  public void testOverwriteArtifacts() throws Exception {
+    doTest("testData/resourceCopying/resourceCopying.ipr", {}, {
+      dir("production") {
+        dir("resourceCopying") {
+          dir("copy") {
+            file("file.txt")
+          }
+          dir("copyTree") {
+            dir("subdir") {
+              file("abc.txt")
+            }
+            file("xyz.txt")
+          }
+          file("a.txt")
+          file("index.html")
+        }
+      }
+    })
+  }
+}