We are running a Quarkus application with Docker, and the base image is an UBI8 (`FROM docker-redhat.sopdock/ubi8/openjdk-21-runtime:1.18`). We are currently  using `org.apache.poi:poi-ooxml:5.2.3` with `SXSSFSheet`s. We are *not* using `sheet.trackAllColumnsForAutoSizing()` because that requires Fonts to be installed, which we don't have inside our Docker image.

However, after updating to 5.2.5, we get the error `Fontconfig head is null, check your fonts or fonts configuration` regardless. I believe this might have been caused by [this change](https://github.com/apache/poi/commit/43551babf1cf628aa184a2f9445412815781dc9e) in 5.2.4:

```diff
diff --git a/poi-ooxml/src/main/java/org/apache/poi/xssf/streaming/SXSSFSheet.java b/poi-ooxml/src/main/java/org/apache/poi/xssf/streaming/SXSSFSheet.java
index 44caba42178..d454fc10829 100644
--- a/poi-ooxml/src/main/java/org/apache/poi/xssf/streaming/SXSSFSheet.java
+++ b/poi-ooxml/src/main/java/org/apache/poi/xssf/streaming/SXSSFSheet.java
@@ -63,8 +63,8 @@ protected SXSSFSheet(SXSSFWorkbook workbook, XSSFSheet xSheet, int randomAccessW
         setRandomAccessWindowSize(randomAccessWindowSize);
         try {
             _autoSizeColumnTracker = new AutoSizeColumnTracker(this);
-        } catch (Throwable t) {
-            LOG.atWarn().log("Failed to create AutoSizeColumnTracker, possibly due to fonts not being installed in your OS", t);
+        } catch (UnsatisfiedLinkError | InternalError e) {
+            LOG.atWarn().log("Failed to create AutoSizeColumnTracker, possibly due to fonts not being installed in your OS", e);
         }
     }
 
@@ -96,8 +96,8 @@ public SXSSFSheet(SXSSFWorkbook workbook, XSSFSheet xSheet) throws IOException {
         setRandomAccessWindowSize(_workbook.getRandomAccessWindowSize());
         try {
             _autoSizeColumnTracker = new AutoSizeColumnTracker(this);
-        } catch (Throwable t) {
-            LOG.atWarn().log("Failed to create AutoSizeColumnTracker, possibly due to fonts not being installed in your OS", t);
+        } catch (UnsatisfiedLinkError | InternalError e) {
+            LOG.atWarn().log("Failed to create AutoSizeColumnTracker, possibly due to fonts not being installed in your OS", e);
         }
     }
 
diff --git a/poi/src/main/java/org/apache/poi/ss/util/SheetUtil.java b/poi/src/main/java/org/apache/poi/ss/util/SheetUtil.java
index d55e3634d52..130169999c4 100644
--- a/poi/src/main/java/org/apache/poi/ss/util/SheetUtil.java
+++ b/poi/src/main/java/org/apache/poi/ss/util/SheetUtil.java
@@ -300,12 +300,12 @@ public static int getDefaultCharWidth(final Workbook wb) {
         try {
             TextLayout layout = new TextLayout(str.getIterator(), fontRenderContext);
             return (int) layout.getAdvance();
-        } catch (Throwable t) {
+        } catch (UnsatisfiedLinkError | NoClassDefFoundError | InternalError e) {
             if (ignoreMissingFontSystem) {
                 return DEFAULT_CHAR_WIDTH;
             }
 
-            throw t;
+            throw e;
         }
     }

```

Where previously all Throwables were caught, and now only `UnsatisfiedLinkError | NoClassDefFoundError | InternalError` do. The "Fontconfig head is null"-error is a RuntimeException: `throw new RuntimeException(fontconfigErrorMessage);`