Now can download .pack.xz file for Forge library.

HMCLAPI/src/main/java/org/tukaani/xz/BCJCoder.java

@@ -0,0 +1,35 @@
+/*
+ * BCJCoder
+ *
+ * Author: Lasse Collin <lasse.collin@tukaani.org>
+ *
+ * This file has been put into the public domain.
+ * You can do whatever you want with this file.
+ */
+
+package org.tukaani.xz;
+
+abstract class BCJCoder implements FilterCoder {
+    public static final long X86_FILTER_ID = 0x04;
+    public static final long POWERPC_FILTER_ID = 0x05;
+    public static final long IA64_FILTER_ID = 0x06;
+    public static final long ARM_FILTER_ID = 0x07;
+    public static final long ARMTHUMB_FILTER_ID = 0x08;
+    public static final long SPARC_FILTER_ID = 0x09;
+
+    public static boolean isBCJFilterID(long filterID) {
+        return filterID >= 0x04 && filterID <= 0x09;
+    }
+
+    public boolean changesSize() {
+        return false;
+    }
+
+    public boolean nonLastOK() {
+        return true;
+    }
+
+    public boolean lastOK() {
+        return false;
+    }
+}