Clean up compiler warnings

java/TJExample.java

@@ -197,7 +197,7 @@ public class TJExample {
       }
 
       File file = new File(argv[0]);
-      int width, height, subsamp = TJ.SAMP_444;
+      int width, height;
 
       if(inFormat.equalsIgnoreCase("jpg")) {
         FileInputStream fis = new FileInputStream(file);
@@ -211,7 +211,6 @@ public class TJExample {
         fis.close();
 
         TJDecompressor tjd;
-				TJ.ScalingFactor sf;
         if(xform.op != TJTransform.OP_NONE || xform.options != 0) {
           TJTransformer tjt = new TJTransformer(inputBuf);
           TJTransform t[] = new TJTransform[1];

java/TJUnitTest.java

@@ -704,7 +704,7 @@ public class TJUnitTest {
     String baseFilename) throws Exception {
     TJCompressor tjc = null;
     TJDecompressor tjd = null;
-    int size, pfstart, pfend;
+    int size;
     byte[] jpegBuf;
 
     if(yuv == YUVENCODE) jpegBuf = new byte[TJ.bufSizeYUV(w, h, subsamp)];