Handle errors when reading images

1 files changed, 7 insertions, 1 deletions

diff --git a/src/main/java/org/zwobble/mammoth/docx/DocumentReader.java b/src/main/java/org/zwobble/mammoth/docx/DocumentReader.java
index 8fe0919..284dd89 100644
--- a/src/main/java/org/zwobble/mammoth/docx/DocumentReader.java
+++ b/src/main/java/org/zwobble/mammoth/docx/DocumentReader.java
@@ -22,7 +22,13 @@ public class DocumentReader {
         Styles styles = readStyles(zipFile);
         Numbering numbering = readNumbering(zipFile);
         ContentTypes contentTypes = readContentTypes(zipFile);
-        FileReader fileReader = uri -> path.get().toUri().resolve(uri).toURL().openStream();
+        FileReader fileReader = uri -> {
+            try {
+                return path.get().toUri().resolve(uri).toURL().openStream();
+            } catch (IOException exception) {
+                throw new IOException("could not open external image '" + uri + "': " + exception.getMessage());
+            }
+        };
         BodyReaders bodyReaders = name -> {
             Relationships relationships = readRelationships(zipFile, name);
             return new BodyXmlReader(styles, numbering, relationships, contentTypes, zipFile, fileReader);