Index: hbase-common/src/main/java/org/apache/hadoop/hbase/TableName.java =================================================================== --- hbase-common/src/main/java/org/apache/hadoop/hbase/TableName.java (revision 1601564) +++ hbase-common/src/main/java/org/apache/hadoop/hbase/TableName.java (working copy) @@ -136,7 +136,7 @@ int namespaceDelimIndex = com.google.common.primitives.Bytes.lastIndexOf(tableName, (byte) NAMESPACE_DELIM); - if (namespaceDelimIndex == 0 || namespaceDelimIndex == -1){ + if (namespaceDelimIndex < 0){ isLegalTableQualifierName(tableName); } else { isLegalNamespaceName(tableName, 0, namespaceDelimIndex);