melloware commented on a change in pull request #99: [COLLECTIONS-714] Throw
exception when put \u0000 to trie
URL: https://github.com/apache/commons-collections/pull/99#discussion_r341851667
##########
File path:
src/main/java/org/apache/commons/collections4/trie/analyzer/StringKeyAnalyzer.java
##########
@@ -82,6 +82,9 @@ public int bitIndex(final String key, final int
offsetInBits, final int lengthIn
k = 0;
} else {
k = key.charAt(index1);
+ if (k == 0) {
+ throw new IllegalArgumentException("Don't support
'\\u0000' in the key.");
+ }
Review comment:
A better message might be "Character '\\u0000' is not supported in the key."
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