Mirrors/Stirling-PDF
Mirrors/Stirling-PDF
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double-checked locking for thread safety in MIME utility initialization

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This commit is contained in:
Balázs Szücs 2025-08-06 14:34:47 +02:00
parent b7815fff33
commit c5eee8cad9
1 changed files with 7 additions and 8 deletions
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15
app/common/src/main/java/stirling/software/common/util/EmlToPdf.java
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@ -1301,8 +1301,7 @@ public class EmlToPdf {
Object attachmentContent = getContent.invoke(part);
byte[] attachmentData = null;
if (attachmentContent instanceof InputStream) {
InputStream inputStream = (InputStream) attachmentContent;
if (attachmentContent instanceof InputStream inputStream) {
// Enhanced stream handling with EOF protection
try (InputStream stream = inputStream) {
attachmentData = stream.readAllBytes();
@ -1891,7 +1890,11 @@ public class EmlToPdf {
}
if (!mimeUtilityChecked) {
initializeMimeUtilityDecoding();
synchronized (EmlToPdf.class) {
if (!mimeUtilityChecked) {
initializeMimeUtilityDecoding();
}
}
}
if (mimeUtilityDecodeTextMethod != null) {
@ -1904,11 +1907,7 @@ public class EmlToPdf {
return decodeMimeHeader(headerValue.trim());
}
private static synchronized void initializeMimeUtilityDecoding() {
if (mimeUtilityChecked) {
return; // Already initialized
}
private static void initializeMimeUtilityDecoding() {
try {
Class<?> mimeUtilityClass = Class.forName("jakarta.mail.internet.MimeUtility");
mimeUtilityDecodeTextMethod = mimeUtilityClass.getMethod("decodeText", String.class);