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8372950: Pem.pemEncoded should cache the Pattern

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Reviewed-by: ascarpino
This commit is contained in:
Fernando Guallini 2026-01-06 10:53:27 +00:00
parent 5df183be6c
commit 532a0a65b1
1 changed files with 5 additions and 1 deletions
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6
src/java.base/share/classes/sun/security/util/Pem.java
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@ -59,6 +59,9 @@ public class Pem {
// Pattern matching for stripping whitespace. // Pattern matching for stripping whitespace.
private static final Pattern STRIP_WHITESPACE_PATTERN; private static final Pattern STRIP_WHITESPACE_PATTERN;
// Pattern matching for inserting line breaks.
private static final Pattern LINE_WRAP_64_PATTERN;
// Lazy initialized PBES2 OID value // Lazy initialized PBES2 OID value
private static ObjectIdentifier PBES2OID; private static ObjectIdentifier PBES2OID;
@ -72,6 +75,7 @@ public class Pem {
PBE_PATTERN = Pattern.compile("^PBEWith.*And.*", PBE_PATTERN = Pattern.compile("^PBEWith.*And.*",
Pattern.CASE_INSENSITIVE); Pattern.CASE_INSENSITIVE);
STRIP_WHITESPACE_PATTERN = Pattern.compile("\\s+"); STRIP_WHITESPACE_PATTERN = Pattern.compile("\\s+");
LINE_WRAP_64_PATTERN = Pattern.compile("(.{64})");
} }
public static final String CERTIFICATE = "CERTIFICATE"; public static final String CERTIFICATE = "CERTIFICATE";
@ -359,7 +363,7 @@ public class Pem {
* @return PEM in a string * @return PEM in a string
*/ */
public static String pemEncoded(PEM pem) { public static String pemEncoded(PEM pem) {
String p = pem.content().replaceAll("(.{64})", "$1\r\n"); String p = LINE_WRAP_64_PATTERN.matcher(pem.content()).replaceAll("$1\r\n");
return pemEncoded(pem.type(), p); return pemEncoded(pem.type(), p);
} }