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-rw-r--r--document/src/main/java/com/yahoo/document/idstring/IdString.java2
1 files changed, 1 insertions, 1 deletions
diff --git a/document/src/main/java/com/yahoo/document/idstring/IdString.java b/document/src/main/java/com/yahoo/document/idstring/IdString.java
index 82a01377b6c..40ac19dec6d 100644
--- a/document/src/main/java/com/yahoo/document/idstring/IdString.java
+++ b/document/src/main/java/com/yahoo/document/idstring/IdString.java
@@ -79,7 +79,7 @@ public abstract class IdString {
}
private static void validateTextString(String id) {
- if (Text.isValidTextString(id)) {
+ if ( ! Text.isValidTextString(id)) {
throw new IllegalArgumentException("Unparseable id '" + id + "': Contains illegal code point 0x" +
Integer.toHexString(Text.validateTextString(id).getAsInt()).toUpperCase());
}