diff --git a/openjdk/excludes/ProblemList_openjdk11-openj9.txt b/openjdk/excludes/ProblemList_openjdk11-openj9.txt
index 5d2499d576..819e69307b 100644
--- a/openjdk/excludes/ProblemList_openjdk11-openj9.txt
+++ b/openjdk/excludes/ProblemList_openjdk11-openj9.txt
@@ -51,6 +51,7 @@ java/lang/String/CaseConvertSameInstance.java	https://github.com/eclipse-openj9/
 java/lang/String/CaseInsensitiveComparator.java	https://github.com/eclipse-openj9/openj9/issues/6665	generic-all
 java/lang/String/CompactString/IndexOf.java	https://github.com/eclipse-openj9/openj9/issues/6673	generic-all
 java/lang/String/EqualsIgnoreCase.java	https://github.com/eclipse-openj9/openj9/issues/6666	generic-all
+java/lang/StringBuilder/HugeCapacity.java	https://github.com/eclipse-openj9/openj9/issues/17323	linux-s390x
 java/lang/System/Logger/custom/CustomLoggerTest.java	https://github.com/eclipse-openj9/openj9/issues/6674	generic-all
 java/lang/System/Logger/default/DefaultLoggerTest.java	https://github.com/eclipse-openj9/openj9/issues/6674	generic-all
 java/lang/System/LoggerFinder/BaseLoggerFinderTest/BaseLoggerFinderTest.java	https://github.com/eclipse-openj9/openj9/issues/6674	generic-all
diff --git a/openjdk/excludes/ProblemList_openjdk8-openj9.txt b/openjdk/excludes/ProblemList_openjdk8-openj9.txt
index 61cdc6c63a..06de758615 100644
--- a/openjdk/excludes/ProblemList_openjdk8-openj9.txt
+++ b/openjdk/excludes/ProblemList_openjdk8-openj9.txt
@@ -34,6 +34,7 @@ java/lang/SecurityManager/CheckPackageAccess.java		https://github.com/eclipse-op
 java/lang/String/CaseConvertSameInstance.java           https://github.com/eclipse-openj9/openj9/issues/3303   generic-all
 java/lang/String/CaseInsensitiveComparator.java		https://github.com/eclipse-openj9/openj9/issues/1128	generic-all
 java/lang/StringBuilder/Exceptions.java		https://github.com/eclipse-openj9/openj9/issues/1128	generic-all
+java/lang/StringBuilder/HugeCapacity.java	https://github.com/eclipse-openj9/openj9/issues/17323	linux-s390x
 java/lang/StringBuilder/Supplementary.java https://github.com/eclipse-openj9/openj9/issues/5315 linux-s390x
 java/lang/StringBuffer/Exceptions.java		https://github.com/eclipse-openj9/openj9/issues/1128	generic-all
 java/lang/StringBuffer/TestSynchronization.java		https://github.com/eclipse-openj9/openj9/issues/1128	generic-all