src/java.desktop/share/classes/javax/imageio/plugins/tiff/TIFFField.java

*** 696,705 ****
--- 696,710 ----
       * one of the {@code TIFFTag.TIFF_*} data type constants.
       * @throws IllegalArgumentException if {@code type} is an unacceptable
       * data type for the supplied {@code TIFFTag}.
       * @throws IllegalArgumentException if {@code count < 0}.
       * @see #TIFFField(TIFFTag,int,int,Object)
+      * @throws IllegalArgumentException if {@code count < 1}
+      * and {@code type} is {@code TIFF_RATIONAL} or
+      * {@code TIFF_SRATIONAL}.
+      * @throws IllegalArgumentException if {@code count != 1}
+      * and {@code type} is {@code TIFF_IFD_POINTER}.
       */
      public TIFFField(TIFFTag tag, int type, int count) {
          this(tag, type, count, createArrayForType(type, count));
      }
  
*** 883,897 ****
--- 888,917 ----
       * @return An array appropriate for the specified data type.
       *
       * @throws IllegalArgumentException if {@code dataType} is not
       * one of the {@code TIFFTag.TIFF_*} data type constants.
       * @throws IllegalArgumentException if {@code count < 0}.
+      * @throws IllegalArgumentException if {@code count < 1}
+      * and {@code type} is {@code TIFF_RATIONAL} or
+      * {@code TIFF_SRATIONAL}.
+      * @throws IllegalArgumentException if {@code count != 1}
+      * and {@code type} is {@code TIFF_IFD_POINTER}.
       */
      public static Object createArrayForType(int dataType, int count) {
+ 
          if(count < 0) {
              throw new IllegalArgumentException("count < 0!");
+         } else if((dataType == TIFFTag.TIFF_RATIONAL
+                    || dataType == TIFFTag.TIFF_SRATIONAL)
+                   && count < 1) {
+             throw new IllegalArgumentException
+                 ("Type is TIFF_RATIONAL or TIFF_SRATIONAL and count < 1");
+         } else if (dataType == TIFFTag.TIFF_IFD_POINTER && count != 1) {
+             throw new IllegalArgumentException
+                 ("Type is TIFF_IFD_POINTER count != 1");
          }
+ 
          switch (dataType) {
          case TIFFTag.TIFF_BYTE:
          case TIFFTag.TIFF_SBYTE:
          case TIFFTag.TIFF_UNDEFINED:
              return new byte[count];