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markt-asf pushed a commit to branch 10.1.x
in repository https://gitbox.apache.org/repos/asf/tomcat.git
The following commit(s) were added to refs/heads/10.1.x by this push:
new d098f32261 Fix CharChunk.indexOf(char) for chunks with a non-zero start
d098f32261 is described below
commit d098f3226109a49946f1d32b71f52f0083fbaf0e
Author: breken-ai <[email protected]>
AuthorDate: Tue Sep 29 19:59:27 2026 -0700
Fix CharChunk.indexOf(char) for chunks with a non-zero start
indexOf(char) passed the absolute start offset to indexOf(char, int),
whose starting argument is relative to the chunk start. The search
therefore began at twice the start offset, so a match before that point
was missed and -1 was returned. Pass 0 instead.
Generated-by: Claude Code (Claude Opus 5.5)
---
java/org/apache/tomcat/util/buf/CharChunk.java | 2 +-
test/org/apache/tomcat/util/buf/TestCharChunk.java | 18 ++++++++++++++++++
webapps/docs/changelog.xml | 5 +++++
3 files changed, 24 insertions(+), 1 deletion(-)
diff --git a/java/org/apache/tomcat/util/buf/CharChunk.java
b/java/org/apache/tomcat/util/buf/CharChunk.java
index 124acaf6f8..aa91b1df32 100644
--- a/java/org/apache/tomcat/util/buf/CharChunk.java
+++ b/java/org/apache/tomcat/util/buf/CharChunk.java
@@ -653,7 +653,7 @@ public final class CharChunk extends AbstractChunk
implements CharSequence {
* @return the index of the character, or -1 if not found
*/
public int indexOf(char c) {
- return indexOf(c, start);
+ return indexOf(c, 0);
}
diff --git a/test/org/apache/tomcat/util/buf/TestCharChunk.java
b/test/org/apache/tomcat/util/buf/TestCharChunk.java
index c2182af8f1..6a118c27ad 100644
--- a/test/org/apache/tomcat/util/buf/TestCharChunk.java
+++ b/test/org/apache/tomcat/util/buf/TestCharChunk.java
@@ -64,6 +64,24 @@ public class TestCharChunk {
}
+ @Test
+ public void testIndexOf_Char() {
+ char[] chars = "xx=yy=zz".toCharArray();
+
+ CharChunk cc = new CharChunk();
+ cc.setChars(chars, 0, chars.length);
+ Assert.assertEquals(2, cc.indexOf('='));
+ Assert.assertEquals(5, cc.indexOf('=', 3));
+
+ // Chunk that does not start at the beginning of the buffer
+ cc.setChars(chars, 3, 5);
+ Assert.assertEquals(2, cc.indexOf('='));
+ Assert.assertEquals(2, cc.indexOf('=', 0));
+ Assert.assertEquals(0, cc.indexOf('y'));
+ Assert.assertEquals(-1, cc.indexOf('x'));
+ }
+
+
@Test
public void testToString() {
CharChunk cc = new CharChunk();
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index 5aa7115ca9..4c40dd800a 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -4411,6 +4411,11 @@
Skip the write notification in these cases since it would be useless.
(remm)
</fix>
+ <fix>
+ Fix <code>CharChunk.indexOf(char)</code> so that it searches from the
+ start of the chunk rather than from twice the chunk's start offset
+ when the chunk does not begin at the start of its buffer. (breken-ai)
+ </fix>
</changelog>
</subsection>
<subsection name="Jasper">
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