diff --git a/poi-ooxml/src/main/java/org/apache/poi/openxml4j/util/ZipSecureFile.java b/poi-ooxml/src/main/java/org/apache/poi/openxml4j/util/ZipSecureFile.java
index f91674bcae..8c0bb32899 100644
--- a/poi-ooxml/src/main/java/org/apache/poi/openxml4j/util/ZipSecureFile.java
+++ b/poi-ooxml/src/main/java/org/apache/poi/openxml4j/util/ZipSecureFile.java
@@ -36,10 +36,12 @@ import org.apache.logging.log4j.Logger;
 public class ZipSecureFile extends ZipFile {
     private static final Logger LOG = LogManager.getLogger(ZipSecureFile.class);
     /* package */ static double MIN_INFLATE_RATIO = 0.01d;
-    /* package */ static long MAX_ENTRY_SIZE = 0xFFFFFFFFL;
-    
-    // The default maximum size of extracted text
-    private static long MAX_TEXT_SIZE = 10*1024*1024L;
+    /* package */ static final long DEFAULT_MAX_ENTRY_SIZE = 0xFFFFFFFFL;
+    /* package */ static long MAX_ENTRY_SIZE = DEFAULT_MAX_ENTRY_SIZE;
+
+    // The maximum chars of extracted text
+    /* package */ static final long DEFAULT_MAX_TEXT_SIZE = 10*1024*1024L;
+    private static long MAX_TEXT_SIZE = DEFAULT_MAX_TEXT_SIZE;
 
     private final String fileName;
 
@@ -79,7 +81,7 @@ public class ZipSecureFile extends ZipFile {
     public static void setMaxEntrySize(long maxEntrySize) {
         if (maxEntrySize < 0) {
             throw new IllegalArgumentException("Max entry size must be greater than or equal to zero");
-        } else if (maxEntrySize > 0xFFFFFFFFL) {
+        } else if (maxEntrySize > DEFAULT_MAX_ENTRY_SIZE) {
             LOG.atWarn().log("setting max entry size greater than 4Gb can be risky; set to " + maxEntrySize + " bytes");
         }
         MAX_ENTRY_SIZE = maxEntrySize;
@@ -110,8 +112,8 @@ public class ZipSecureFile extends ZipFile {
     public static void setMaxTextSize(long maxTextSize) {
         if (maxTextSize < 0) {
             throw new IllegalArgumentException("Max text size must be greater than or equal to zero");
-        }else if (maxTextSize > 0xFFFFFFFFL) {
-            LOG.atWarn().log("setting max text size greater than " + 0xFFFFFFFFL + " can be risky; set to " + maxTextSize + " chars");
+        }else if (maxTextSize > DEFAULT_MAX_TEXT_SIZE) {
+            LOG.atWarn().log("setting max text size greater than " + DEFAULT_MAX_TEXT_SIZE + " can be risky; set to " + maxTextSize + " chars");
         }
         MAX_TEXT_SIZE = maxTextSize;
     }
diff --git a/poi-ooxml/src/test/java/org/apache/poi/openxml4j/util/TestZipSecureFile.java b/poi-ooxml/src/test/java/org/apache/poi/openxml4j/util/TestZipSecureFile.java
index e14bd87fcd..e639e2fee8 100644
--- a/poi-ooxml/src/test/java/org/apache/poi/openxml4j/util/TestZipSecureFile.java
+++ b/poi-ooxml/src/test/java/org/apache/poi/openxml4j/util/TestZipSecureFile.java
@@ -55,12 +55,12 @@ class TestZipSecureFile {
 
     @Test
     void testSettingMaxEntrySizeAs8Gb() {
-        long approx8Gb = 0xFFFFFFFFL * 2;
+        long approx8Gb = ZipSecureFile.MAX_ENTRY_SIZE * 2;
         try {
             ZipSecureFile.setMaxEntrySize(approx8Gb);
             assertEquals(approx8Gb, ZipSecureFile.getMaxEntrySize());
         } finally {
-            ZipSecureFile.setMaxEntrySize(0xFFFFFFFFL);
+            ZipSecureFile.setMaxEntrySize(ZipSecureFile.MAX_ENTRY_SIZE);
         }
     }
 
@@ -71,12 +71,12 @@ class TestZipSecureFile {
 
     @Test
     void testSettingMaxTextSizeAs8GChars() {
-        long approx8G = 0xFFFFFFFFL * 2;
+        long approx8G = ZipSecureFile.MAX_ENTRY_SIZE * 2;
         try {
             ZipSecureFile.setMaxTextSize(approx8G);
             assertEquals(approx8G, ZipSecureFile.getMaxTextSize());
         } finally {
-            ZipSecureFile.setMaxTextSize(0xFFFFFFFFL);
+            ZipSecureFile.setMaxTextSize(ZipSecureFile.DEFAULT_MAX_TEXT_SIZE);
         }
     }
 }