diff --git a/src/main/resources/org/jenkinsci/plugins/scriptsecurity/sandbox/whitelists/generic-whitelist b/src/main/resources/org/jenkinsci/plugins/scriptsecurity/sandbox/whitelists/generic-whitelist
index a13119ef6..7c68a2e74 100644
--- a/src/main/resources/org/jenkinsci/plugins/scriptsecurity/sandbox/whitelists/generic-whitelist
+++ b/src/main/resources/org/jenkinsci/plugins/scriptsecurity/sandbox/whitelists/generic-whitelist
@@ -267,6 +267,7 @@ method java.lang.String split java.lang.String
 method java.lang.String split java.lang.String int
 method java.lang.String startsWith java.lang.String
 method java.lang.String startsWith java.lang.String int
+method java.lang.String stripIndent
 method java.lang.String substring int
 method java.lang.String substring int int
 method java.lang.String toCharArray
diff --git a/src/test/java/org/jenkinsci/plugins/scriptsecurity/sandbox/whitelists/StaticWhitelistTest.java b/src/test/java/org/jenkinsci/plugins/scriptsecurity/sandbox/whitelists/StaticWhitelistTest.java
index 470eabf9e..c0979241e 100644
--- a/src/test/java/org/jenkinsci/plugins/scriptsecurity/sandbox/whitelists/StaticWhitelistTest.java
+++ b/src/test/java/org/jenkinsci/plugins/scriptsecurity/sandbox/whitelists/StaticWhitelistTest.java
@@ -120,8 +120,9 @@ static void sanity(URL definition) throws Exception {
                     "java.util.Iterator", "groovy.lang.Closure"),
             // Overrides CharSequence.isEmpty in Java 15+.
             new MethodSignature(String.class, "isEmpty"),
-            // Does not exist until Java 15.
+            // Do not exist until Java 15.
             new MethodSignature(CharSequence.class, "isEmpty"),
+            new MethodSignature(String.class, "stripIndent"),
             // Override the corresponding RandomGenerator methods in Java 17+.
             new MethodSignature(Random.class, "nextBoolean"),
             new MethodSignature(Random.class, "nextBytes", byte[].class),