Index: lucene/core/src/java/org/apache/lucene/store/ByteArrayDataInput.java
===================================================================
--- lucene/core/src/java/org/apache/lucene/store/ByteArrayDataInput.java	(revision 1305885)
+++ lucene/core/src/java/org/apache/lucene/store/ByteArrayDataInput.java	(working copy)
@@ -17,14 +17,11 @@
  * limitations under the License.
  */
 
-import java.io.IOException;
-
 import org.apache.lucene.util.BytesRef;
 
 /** 
  * DataInput backed by a byte array.
- * <b>WARNING:</b> This class omits most low-level checks,
- * so be sure to test heavily with assertions enabled.
+ * <b>WARNING:</b> This class omits all low-level checks.
  * @lucene.experimental 
  */
 public final class ByteArrayDataInput extends DataInput {
@@ -80,7 +77,6 @@
 
   public void skipBytes(int count) {
     pos += count;
-    assert pos <= limit;
   }
 
   @Override
@@ -90,14 +86,12 @@
  
   @Override
   public int readInt() {
-    assert pos+4 <= limit;
     return ((bytes[pos++] & 0xFF) << 24) | ((bytes[pos++] & 0xFF) << 16)
       | ((bytes[pos++] & 0xFF) <<  8) |  (bytes[pos++] & 0xFF);
   }
  
   @Override
   public long readLong() {
-    assert pos+8 <= limit;
     final int i1 = ((bytes[pos++] & 0xff) << 24) | ((bytes[pos++] & 0xff) << 16) |
       ((bytes[pos++] & 0xff) << 8) | (bytes[pos++] & 0xff);
     final int i2 = ((bytes[pos++] & 0xff) << 24) | ((bytes[pos++] & 0xff) << 16) |
@@ -107,23 +101,18 @@
 
   @Override
   public int readVInt() {
-    assert checkBounds();
     byte b = bytes[pos++];
     int i = b & 0x7F;
     if ((b & 0x80) == 0) return i;
-    assert checkBounds();
     b = bytes[pos++];
     i |= (b & 0x7F) << 7;
     if ((b & 0x80) == 0) return i;
-    assert checkBounds();
     b = bytes[pos++];
     i |= (b & 0x7F) << 14;
     if ((b & 0x80) == 0) return i;
-    assert checkBounds();
     b = bytes[pos++];
     i |= (b & 0x7F) << 21;
     if ((b & 0x80) == 0) return i;
-    assert checkBounds();
     b = bytes[pos++];
     // Warning: the next ands use 0x0F / 0xF0 - beware copy/paste errors:
     i |= (b & 0x0F) << 28;
@@ -133,39 +122,30 @@
  
   @Override
   public long readVLong() {
-    assert checkBounds();
     byte b = bytes[pos++];
     long i = b & 0x7FL;
     if ((b & 0x80) == 0) return i;
-    assert checkBounds();
     b = bytes[pos++];
     i |= (b & 0x7FL) << 7;
     if ((b & 0x80) == 0) return i;
-    assert checkBounds();
     b = bytes[pos++];
     i |= (b & 0x7FL) << 14;
     if ((b & 0x80) == 0) return i;
-    assert checkBounds();
     b = bytes[pos++];
     i |= (b & 0x7FL) << 21;
     if ((b & 0x80) == 0) return i;
-    assert checkBounds();
     b = bytes[pos++];
     i |= (b & 0x7FL) << 28;
     if ((b & 0x80) == 0) return i;
-    assert checkBounds();
     b = bytes[pos++];
     i |= (b & 0x7FL) << 35;
     if ((b & 0x80) == 0) return i;
-    assert checkBounds();
     b = bytes[pos++];
     i |= (b & 0x7FL) << 42;
     if ((b & 0x80) == 0) return i;
-    assert checkBounds();
     b = bytes[pos++];
     i |= (b & 0x7FL) << 49;
     if ((b & 0x80) == 0) return i;
-    assert checkBounds();
     b = bytes[pos++];
     i |= (b & 0x7FL) << 56;
     if ((b & 0x80) == 0) return i;
@@ -175,19 +155,13 @@
   // NOTE: AIOOBE not EOF if you read too much
   @Override
   public byte readByte() {
-    assert checkBounds();
     return bytes[pos++];
   }
 
   // NOTE: AIOOBE not EOF if you read too much
   @Override
   public void readBytes(byte[] b, int offset, int len) {
-    assert pos + len <= limit;
     System.arraycopy(bytes, pos, b, offset, len);
     pos += len;
   }
-
-  private boolean checkBounds() {
-    return pos < limit;
-  }
 }