[tomcat] 01/02: Use specialised exception for the case of ByteChunk overflow

[markt]

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markt pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/tomcat.git

commit ffe42125b38ff95f0f65cdc784a19bc1772a9ae1
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Mon Dec 6 22:44:11 2021 +0000

    Use specialised exception for the case of ByteChunk overflow
    
    This enables the option of specific handling for this case further up
    the stack
---
 java/org/apache/tomcat/util/buf/ByteChunk.java | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/java/org/apache/tomcat/util/buf/ByteChunk.java 
b/java/org/apache/tomcat/util/buf/ByteChunk.java
index 841b3e3..c2a3d86 100644
--- a/java/org/apache/tomcat/util/buf/ByteChunk.java
+++ b/java/org/apache/tomcat/util/buf/ByteChunk.java
@@ -465,7 +465,7 @@ public final class ByteChunk extends AbstractChunk {
     public void flushBuffer() throws IOException {
         // assert out!=null
         if (out == null) {
-            throw new IOException(sm.getString(
+            throw new BufferOverflowException(sm.getString(
                     "chunk.overflow", Integer.valueOf(getLimit()), 
Integer.valueOf(buff.length)));
         }
         out.realWriteBytes(buff, start, end - start);
@@ -830,4 +830,14 @@ public final class ByteChunk extends AbstractChunk {
         }
         return result;
     }
+
+
+    public static class BufferOverflowException extends IOException {
+
+        private static final long serialVersionUID = 1L;
+
+        public BufferOverflowException(String message) {
+            super(message);
+        }
+    }
 }

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