Apache
/
commons-collections
mirror of https://github.com/apache/commons-collections.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Fix for bug 9719. 

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/collections/trunk@130709 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael Smith 2002-06-09 07:14:14 +00:00
parent bde0d09c4c
commit c1cdfa611c
1 changed files with 18 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
src/java/org/apache/commons/collections/SequencedHashMap.java
View File

@ -1,7 +1,7 @@
/*
* $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/SequencedHashMap.java,v 1.10 2002/05/24 04:00:30 mas Exp $
* $Revision: 1.10 $
* $Date: 2002/05/24 04:00:30 $
* $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/SequencedHashMap.java,v 1.11 2002/06/09 07:14:14 mas Exp $
* $Revision: 1.11 $
* $Date: 2002/06/09 07:14:14 $
*
* ====================================================================
*
@ -478,19 +478,20 @@ public class SequencedHashMap implements Map, Cloneable, Externalizable {
// per Map.remove(Object)
public Object remove(Object key) {
modCount++;
return removeImpl(key);
Entry e = removeImpl(key);
return (e == null) ? null : e.getValue();
}
/**
* Removed an entry without changing the map's modification count. This
* method should only be called from a collection view's iterator
* Fully remove an entry from the map, returning the old entry or null if
* there was no such entry with the specified key.
**/
private Object removeImpl(Object key) {
private Entry removeImpl(Object key) {
Entry e = (Entry)entries.remove(key);
if(e == null) return null;
modCount++;
removeEntry(e);
return e.getValue();
return e;
}
/**
@ -568,7 +569,8 @@ public class SequencedHashMap implements Map, Cloneable, Externalizable {
// required impls
public Iterator iterator() { return new OrderedIterator(KEY); }
public boolean remove(Object o) {
return SequencedHashMap.this.remove(o) != null;
Entry e = SequencedHashMap.this.removeImpl(o);
return (e != null);
}
// more efficient impls than abstract set
@ -600,14 +602,14 @@ public class SequencedHashMap implements Map, Cloneable, Externalizable {
if(value == null) {
for(Entry pos = sentinel.next; pos != sentinel; pos = pos.next) {
if(pos.getValue() == null) {
SequencedHashMap.this.remove(pos.getKey());
SequencedHashMap.this.removeImpl(pos.getKey());
return true;
}
}
} else {
for(Entry pos = sentinel.next; pos != sentinel; pos = pos.next) {
if(value.equals(pos.getValue())) {
SequencedHashMap.this.remove(pos.getKey());
SequencedHashMap.this.removeImpl(pos.getKey());
return true;
}
}
@ -654,7 +656,7 @@ public class SequencedHashMap implements Map, Cloneable, Externalizable {
Entry e = findEntry(o);
if(e == null) return false;
return SequencedHashMap.this.remove(e.getKey()) != null;
return SequencedHashMap.this.removeImpl(e.getKey()) != null;
}
// more efficient impls than abstract collection
@ -791,10 +793,11 @@ public class SequencedHashMap implements Map, Cloneable, Externalizable {
throw new ConcurrentModificationException();
}
// remove the entry by calling the removeImpl method which does not
// update the mod count. This allows the iterator to remain valid.
SequencedHashMap.this.removeImpl(pos.getKey());
// update the expected mod count for the remove operation
expectedModCount++;
// set the removed flag
returnType = returnType | REMOVED_MASK;
}