Add additional info to UnsupportedDefaultColorSpaceName exception.

Author: IdamkinI

kernel/src/main/java/com/itextpdf/kernel/PdfException.java

@@ -305,7 +305,7 @@ public class PdfException extends RuntimeException {
     public static final String UnknownHashAlgorithm1 = "Unknown hash algorithm: {0}.";
     public static final String UnknownKeyAlgorithm1 = "Unknown key algorithm: {0}.";
     public static final String UnknownColorFormatMustBeRGBorRRGGBB = "Unknown color format: must be rgb or rrggbb.";
-    public static final String UnsupportedDefaultColorSpaceName = "Unsupported default color space name.";
+    public static final String UnsupportedDefaultColorSpaceName1 = "Unsupported default color space name. Was {0}, but should be DefaultCMYK, DefaultGray or DefaultRGB";
     public static final String UnsupportedXObjectType = "Unsupported XObject type.";
     public static final String VerificationAlreadyOutput = "Verification already output.";
     public static final String WhenAddingObjectReferenceToTheTagTreeItMustBeConnectedToNotFlushedObject = "When adding object reference to the tag tree, it must be connected to not flushed object.";

kernel/src/main/java/com/itextpdf/kernel/pdf/PdfResources.java

@@ -395,7 +395,7 @@ protected void setModified(boolean isModified) {
     public void setDefaultColorSpace(PdfName defaultCsKey, PdfColorSpace defaultCsValue) {
         if (!defaultCsKey.equals(PdfName.DefaultCMYK) && !defaultCsKey.equals(PdfName.DefaultGray) &&
                 !defaultCsKey.equals(PdfName.DefaultRGB)) {
-            throw new PdfException(PdfException.UnsupportedDefaultColorSpaceName);
+            throw new PdfException(PdfException.UnsupportedDefaultColorSpaceName1).setMessageParams(defaultCsKey.toString());
         }
         addResource(defaultCsValue.getPdfObject(), PdfName.ColorSpace, defaultCsKey);
     }