aajisaka commented on a change in pull request #2327:
URL: https://github.com/apache/hadoop/pull/2327#discussion_r498189901
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File path:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/CallerContext.java
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@@ -114,6 +115,12 @@ public String toString() {
/** The caller context builder. */
public static final class Builder {
private static final String KEY_VALUE_SEPARATOR = ":";
+ /**
+ * The illegal separators include '\t', '\n', '=', etc.
+ * User should not set illegal separator.
+ */
+ private static final List<String> ILLEGAL_SEPARATORS =
+ Arrays.asList("\t","\n","=");
Review comment:
We should use `Collections.unmodifiableList` to provide an unmodifiable
view.
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