Added NS_NewArray function. Used by testcase. Not part of default build.

extensions/java/xpcom/GeckoEmbed.java

@@ -44,5 +44,7 @@ public final class GeckoEmbed {
   public static native nsILocalFile NS_NewLocalFile(String aPath, boolean followLinks);
   public static native nsIComponentManager NS_GetComponentManager();
   public static native nsIServiceManager NS_GetServiceManager();
+
   public static native nsISimpleEnumerator NS_NewSingletonEnumerator(nsISupports aSingleton);
+  public static native nsIMutableArray NS_NewArray();
 }

extensions/java/xpcom/nsJavaInterfaces.cpp

@@ -44,6 +44,7 @@
 #include "nsIInterfaceInfoManager.h"
 #include "nsIInputStream.h"
 #include "nsEnumeratorUtils.h"
+#include "nsArray.h"
 
 #define GECKO_NATIVE(func) Java_org_mozilla_xpcom_GeckoEmbed_##func
 #define XPCOM_NATIVE(func) Java_org_mozilla_xpcom_XPCOM_##func
@@ -281,6 +282,37 @@ GECKO_NATIVE(NS_1NewSingletonEnumerator) (JNIEnv *env, jclass, jobject aSingleto
   return java_stub;
 }
 
+extern "C" JNIEXPORT jobject JNICALL
+GECKO_NATIVE(NS_1NewArray) (JNIEnv *env, jclass)
+{
+  jobject java_stub = nsnull;
+
+  // Call XPCOM method
+  nsCOMPtr<nsIMutableArray> array;
+  nsresult rv = NS_NewArray(getter_AddRefs(array));
+
+  if (NS_SUCCEEDED(rv)) {
+    // wrap xpcom instance
+    JavaXPCOMInstance* inst;
+    inst = CreateJavaXPCOMInstance(array, &NS_GET_IID(nsIMutableArray));
+
+    if (inst) {
+      // create java stub
+      java_stub = CreateJavaWrapper(env, "nsIMutableArray");
+
+      if (java_stub) {
+        // Associate XPCOM object w/ Java stub
+        AddJavaXPCOMBinding(env, java_stub, inst);
+      }
+    }
+  }
+
+  if (java_stub == nsnull)
+    ThrowXPCOMException(env, 0);
+
+  return java_stub;
+}
+
 // JNI wrapper for calling an nsWriteSegmentFun function
 extern "C" JNIEXPORT jint JNICALL
 XPCOM_NATIVE(nsWriteSegmentFun) (JNIEnv *env, jclass that, jint aWriterFunc,