There was a bug in the parseVersion code. Before it was converting the version to a ciphertext type and deserialzing it

when all it needed to do was compare the bytes.

Author: josecorella

src/main/java/com/amazonaws/encryptionsdk/model/CiphertextHeaders.java

@@ -180,7 +180,7 @@ public Boolean isComplete() {
      */
     private int parseVersion(final byte[] b, final int off) throws ParseException {
         version_ = PrimitivesParser.parseByte(b, off);
-        if (CiphertextType.deserialize(version_).getValue() != VersionInfo.CURRENT_CIPHERTEXT_VERSION) {
+        if (version_ != VersionInfo.CURRENT_CIPHERTEXT_VERSION) {
             throw new BadCiphertextException("Invalid version type.");
         }
         return 1;

src/test/java/com/amazonaws/encryptionsdk/model/CiphertextHeadersTest.java

@@ -323,9 +323,9 @@ public void invalidVersion(){
         final byte[] headerBytes = ciphertextHeaders.toByteArray();
         final ByteBuffer headerBuff = ByteBuffer.wrap(headerBytes);
 
-        readUptoType(headerBuff);
+        readUptoVersion(headerBuff);
 
-        //set version to invalid value of 0.
+        //set version to invalid type of 0.
         headerBuff.put((byte) 0);
 
         final CiphertextHeaders reconstructedHeaders = new CiphertextHeaders();