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Only set AWT headless property if not already set

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Closes gh-28803
This commit is contained in:
Moritz Halbritter 2023-01-18 14:14:14 +01:00
parent 97d4988821
commit c939e27925
1 changed files with 6 additions and 11 deletions
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17
spring-boot-project/spring-boot/src/main/java/org/springframework/boot/ImageBanner.java
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@ -1,5 +1,5 @@
/*
* Copyright 2012-2019 the original author or authors.
* Copyright 2012-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -57,6 +57,8 @@ import org.springframework.util.Assert;
*/
public class ImageBanner implements Banner {
private static final String SYSTEM_PROPERTY_JAVA_AWT_HEADLESS = "java.awt.headless";
private static final String PROPERTY_PREFIX = "spring.banner.image.";
private static final Log logger = LogFactory.getLog(ImageBanner.class);
@ -73,9 +75,10 @@ public class ImageBanner implements Banner {
@Override
public void printBanner(Environment environment, Class<?> sourceClass, PrintStream out) {
String headless = System.getProperty("java.awt.headless");
try {
System.setProperty("java.awt.headless", "true");
if (System.getProperty(SYSTEM_PROPERTY_JAVA_AWT_HEADLESS) == null) {
System.setProperty(SYSTEM_PROPERTY_JAVA_AWT_HEADLESS, "true");
}
printBanner(environment, out);
}
catch (Throwable ex) {
@ -83,14 +86,6 @@ public class ImageBanner implements Banner {
ex.getMessage()));
logger.debug("Image banner printing failure", ex);
}
finally {
if (headless == null) {
System.clearProperty("java.awt.headless");
}
else {
System.setProperty("java.awt.headless", headless);
}
}
}
private void printBanner(Environment environment, PrintStream out) throws IOException {