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The following commit(s) were added to refs/heads/master by this push:
     new 50663060d Javadoc
50663060d is described below

commit 50663060d45be2e13105471ff6cf98d79b76a31b
Author: Gary D. Gregory <[email protected]>
AuthorDate: Sun Aug 10 11:08:23 2025 -0400

    Javadoc
---
 .../commons/compress/compressors/gzip/ExtraField.java  | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git 
a/src/main/java/org/apache/commons/compress/compressors/gzip/ExtraField.java 
b/src/main/java/org/apache/commons/compress/compressors/gzip/ExtraField.java
index 43bd53138..97b3c4598 100644
--- a/src/main/java/org/apache/commons/compress/compressors/gzip/ExtraField.java
+++ b/src/main/java/org/apache/commons/compress/compressors/gzip/ExtraField.java
@@ -55,8 +55,22 @@
  * Additional documentation on extra fields in use:
  * </p>
  * <ul>
- * <li><a href="https://samtools.github.io/hts-specs/SAMv1.pdf";>Sequence 
Alignment/Map Format Specification</a>: The BGZF compression format defines the 
extra
- * field used by BGZF uses the two subfield ID values 66 and 67 (ASCII 
'BC').</li>
+ * <li>Apollo
+ * <pre>
+ *   SI1         SI2         Data
+ *   ----------  ----------  ----
+ *   0x41 ('A')  0x70 ('P')  Apollo file type information
+ * </pre>
+ * </li>
+ * <li>
+ * <a href="https://samtools.github.io/hts-specs/SAMv1.pdf";>Sequence 
Alignment/Map Format Specification</a>: The BGZF compression format defines the 
extra
+ * field used by BGZF uses the two subfield ID values 66 and 67 (ASCII 'BC').
+ * <pre>
+ *   SI1         SI2         Data
+ *   ----------  ----------  ----
+ *   0x42 ('B')  0x43 ('C')  BGZF usage
+ * </pre>
+ * </li>
  * </ul>
  *
  * @see <a href="https://datatracker.ietf.org/doc/html/rfc1952";>RFC 1952 GZIP 
File Format Specification</a>

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