diff --git a/src/zutil/ByteUtil.java b/src/zutil/ByteUtil.java
index b5f4334..a16503f 100755
--- a/src/zutil/ByteUtil.java
+++ b/src/zutil/ByteUtil.java
@@ -144,7 +144,7 @@ public class ByteUtil {
         byte rest = 0;
         for (int i=0; i<data.length; ++i){
             rest = (byte)(getBits(data[i], shiftBy-1, shiftBy) << 8 - shiftBy);
-            data[i] >>>= shiftBy;
+            data[i] = (byte)((int)(data[i]&0xFF) >> shiftBy);
             if(i != 0)
                 data[i-1] |= rest;
         }
diff --git a/src/zutil/converter/Converter.java b/src/zutil/converter/Converter.java
index bb6ce98..74f4d6b 100755
--- a/src/zutil/converter/Converter.java
+++ b/src/zutil/converter/Converter.java
@@ -101,11 +101,11 @@ public class Converter {
         if(hex.startsWith("0x"))
             hex = hex.substring(2);
         byte[] b = new byte[(int)Math.ceil(hex.length()/2.0)];
-        for(int i=hex.length()-1; i>=0; i-=2){
-            if(i-1 < 0)
-                b[(hex.length()-i-1)/2] = hexToByte(hex.charAt(i));
+        for(int i=0; i<hex.length(); i+=2){
+            if(i+1 >= hex.length())
+                b[(i+1)/2] = hexToByte(hex.charAt(i), '0');
             else
-                b[(hex.length()-i-1)/2] = hexToByte(hex.charAt(i-1), hex.charAt(i));
+                b[(i+1)/2] = hexToByte(hex.charAt(i), hex.charAt(i+1));
         }
         return b;
     }
diff --git a/test/zutil/ByteUtilTest.java b/test/zutil/ByteUtilTest.java
index bf3d516..d2413ae 100755
--- a/test/zutil/ByteUtilTest.java
+++ b/test/zutil/ByteUtilTest.java
@@ -109,6 +109,8 @@ public class ByteUtilTest {
                 ByteUtil.shiftLeft(new byte[]{0b0000_0001}, 0));
         assertArrayEquals(         new byte[]{0b0000_0001},
                 ByteUtil.shiftLeft(new byte[]{0b0001_0000}, 4));
+        assertArrayEquals(         new byte[]{0b0000_1000},
+                ByteUtil.shiftLeft(new byte[]{(byte)0b1000_0000}, 4));
         assertArrayEquals(         new byte[]{0b0001_0001, 0b0000_0000},
                 ByteUtil.shiftLeft(new byte[]{0b0001_0000, 0b0000_0001}, 4));
         assertArrayEquals(         new byte[]{0b0100_1001, 0b0000_0001},
diff --git a/test/zutil/converter/ConverterTest.java b/test/zutil/converter/ConverterTest.java
index 5d25d2f..c5a4c7b 100755
--- a/test/zutil/converter/ConverterTest.java
+++ b/test/zutil/converter/ConverterTest.java
@@ -57,9 +57,9 @@ public class ConverterTest {
         assertArrayEquals( new byte[]{}, Converter.hexToByte("") );
         assertArrayEquals( new byte[]{0x00}, Converter.hexToByte("0x00") );
         assertArrayEquals( new byte[]{0x00}, Converter.hexToByte("00") );
-        assertArrayEquals(new byte[]{0x07,0x06,0x05,0x04,0x03,0x02,0x01},
+        assertArrayEquals(new byte[]{0x01,0x02,0x03,0x04,0x05,0x06,0x07},
                 Converter.hexToByte("01020304050607") );
-        assertArrayEquals( new byte[]{0x11,0x0F}, Converter.hexToByte("F11") );
+        assertArrayEquals( new byte[]{(byte)0xF1,0x10}, Converter.hexToByte("F11") );
     }
 
 	@Test