[ https://issues.apache.org/jira/browse/HDFS-15123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ravuri Sushma sree updated HDFS-15123: -------------------------------------- Description: *if (toMoveUp.left != null)* and *if (toMoveUp.right != null)* null checks are not necessary as they are being handled in the if and else if conditions {code:java} private void deleteNode(final Node<E> node) { if (node.right == null) { if (node.left != null) { attachToParent(node, node.left); } else { attachNullToParent(node); } } else if (node.left == null) { attachToParent(node, node.right); } else { else { // node.left != null && node.right != null // node.next should replace node in tree // node.next != null guaranteed since node.left != null // node.next.left == null since node.next.prev is node // node.next.right may be null or non-null Node<E> toMoveUp = node.next; if (toMoveUp.right == null) { attachNullToParent(toMoveUp); } else { attachToParent(toMoveUp, toMoveUp.right); } toMoveUp.left = node.left; if (toMoveUp.left != null) { toMoveUp.left.parent = toMoveUp; } toMoveUp.right = node.right; if (toMoveUp.right != null) { toMoveUp.right.parent = toMoveUp; } attachToParentNoBalance(node, toMoveUp); toMoveUp.color = node.color; } {code} was: private void deleteNode(final Node<E> node) { +*if (node.right == null) {*+ if (node.left != null) { attachToParent(node, node.left); } else { attachNullToParent(node); } +*} else if (node.left == null) {*+ attachToParent(node, node.right); } *else {* else { // node.left != null && node.right != null // node.next should replace node in tree // node.next != null guaranteed since node.left != null // node.next.left == null since node.next.prev is node // node.next.right may be null or non-null Node<E> toMoveUp = node.next; if (toMoveUp.right == null) { attachNullToParent(toMoveUp); } else { attachToParent(toMoveUp, toMoveUp.right); } toMoveUp.left = node.left; *if (toMoveUp.left != null) {* toMoveUp.left.parent = toMoveUp; } toMoveUp.right = node.right; *if (toMoveUp.right != null) {* toMoveUp.right.parent = toMoveUp; } attachToParentNoBalance(node, toMoveUp); toMoveUp.color = node.color; } *if (toMoveUp.left != null)* and *if (toMoveUp.right != null)* null checks are not necessary as they are being handled in the if and else if conditions > Remove unnecessary null check in FoldedTreeSet > ---------------------------------------------- > > Key: HDFS-15123 > URL: https://issues.apache.org/jira/browse/HDFS-15123 > Project: Hadoop HDFS > Issue Type: Bug > Reporter: Ravuri Sushma sree > Assignee: Ravuri Sushma sree > Priority: Minor > Fix For: 3.1.1 > > > *if (toMoveUp.left != null)* and *if (toMoveUp.right != null)* null checks > are not necessary as they are being handled in the if and else if conditions > {code:java} > private void deleteNode(final Node<E> node) { > if (node.right == null) { > if (node.left != null) > { attachToParent(node, node.left); } > else > { attachNullToParent(node); } > } else if (node.left == null) { > attachToParent(node, node.right); > } else { > else { > // node.left != null && node.right != null > // node.next should replace node in tree > // node.next != null guaranteed since node.left != null > // node.next.left == null since node.next.prev is node > // node.next.right may be null or non-null > Node<E> toMoveUp = node.next; > if (toMoveUp.right == null) > { attachNullToParent(toMoveUp); } > else > { attachToParent(toMoveUp, toMoveUp.right); } > toMoveUp.left = node.left; > if (toMoveUp.left != null) { > toMoveUp.left.parent = toMoveUp; > } > toMoveUp.right = node.right; > if (toMoveUp.right != null) { > toMoveUp.right.parent = toMoveUp; > } > attachToParentNoBalance(node, toMoveUp); > toMoveUp.color = node.color; > } > {code} -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org