FOP-2246: Exception java.lang.IllegalArgumentException: min (1650) > opt (0); changes to avoid exception and default to "reasonable" values if no invalid value was explicitly provided.

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@1494364 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 10 insertions, 0 deletions

diff --git a/src/java/org/apache/fop/traits/SpaceVal.java b/src/java/org/apache/fop/traits/SpaceVal.java
index f9f5c4991..1cefd62f7 100644
--- a/src/java/org/apache/fop/traits/SpaceVal.java
+++ b/src/java/org/apache/fop/traits/SpaceVal.java
@@ -59,6 +59,16 @@ public class SpaceVal {
         int min = spaceprop.getMinimum(context).getLength().getValue(context);
         int opt = spaceprop.getOptimum(context).getLength().getValue(context);
         int max = spaceprop.getMaximum(context).getLength().getValue(context);
+        // if a value is not set defaults to zero
+        if (min > max && max == 0) {
+            max = opt > min ? opt : min;
+        }
+        if (min > opt && opt == 0) {
+            opt = (min + max) / 2;
+        }
+        if (opt > max && max == 0) {
+            max = opt;
+        }
         return MinOptMax.getInstance(min, opt, max);
     }