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-rw-r--r--luni/src/main/java/java/math/BigInt.java2
1 files changed, 1 insertions, 1 deletions
diff --git a/luni/src/main/java/java/math/BigInt.java b/luni/src/main/java/java/math/BigInt.java
index 1768676..614dbb4 100644
--- a/luni/src/main/java/java/math/BigInt.java
+++ b/luni/src/main/java/java/math/BigInt.java
@@ -153,7 +153,7 @@ final class BigInt {
*/
String checkString(String s, int base) {
if (s == null) {
- throw new NullPointerException();
+ throw new NullPointerException("s == null");
}
// A valid big integer consists of an optional '-' or '+' followed by
// one or more digit characters appropriate to the given base,