handle value decoding failures more gracefully

1 files changed, 5 insertions, 1 deletions

diff --git a/document/src/vespa/document/serialization/vespadocumentdeserializer.cpp b/document/src/vespa/document/serialization/vespadocumentdeserializer.cpp
index 6567b8cb6b5..d88f7437112 100644
--- a/document/src/vespa/document/serialization/vespadocumentdeserializer.cpp
+++ b/document/src/vespa/document/serialization/vespadocumentdeserializer.cpp
@@ -373,7 +373,11 @@ VespaDocumentDeserializer::readTensor()
     std::unique_ptr<vespalib::eval::Value> tensor;
     if (length != 0) {
         nbostream wrapStream(_stream.peek(), length);
-        tensor = vespalib::eval::decode_value(wrapStream, FastValueBuilderFactory::get());
+        try {
+            tensor = vespalib::eval::decode_value(wrapStream, FastValueBuilderFactory::get());
+        } catch (const vespalib::eval::DecodeValueException &e) {
+            throw DeserializeException("tensor value decode failed", e, VESPA_STRLOC);
+        }
         if (wrapStream.size() != 0) {
             throw DeserializeException("Leftover bytes deserializing tensor field value.", VESPA_STRLOC);
         }