diff --git a/poi/src/main/java/org/apache/poi/hssf/record/EscherAggregate.java b/poi/src/main/java/org/apache/poi/hssf/record/EscherAggregate.java
index 2c71372ee9..67beb21207 100644
--- a/poi/src/main/java/org/apache/poi/hssf/record/EscherAggregate.java
+++ b/poi/src/main/java/org/apache/poi/hssf/record/EscherAggregate.java
@@ -1037,11 +1037,7 @@ public final class EscherAggregate extends AbstractEscherHolderRecord {
         final UnsynchronizedByteArrayOutputStream buffer = UnsynchronizedByteArrayOutputStream.builder().get();
 
         void addBytes(byte[] data) {
-            try {
-                buffer.write(data);
-            } catch (IOException e) {
-                throw new IllegalStateException("Couldn't get data from drawing/continue records", e);
-            }
+            buffer.write(data);
         }
 
         @Override
diff --git a/poi/src/test/java/org/apache/poi/hssf/model/TestDrawingAggregate.java b/poi/src/test/java/org/apache/poi/hssf/model/TestDrawingAggregate.java
index 12854be920..8d07fc4d0e 100644
--- a/poi/src/test/java/org/apache/poi/hssf/model/TestDrawingAggregate.java
+++ b/poi/src/test/java/org/apache/poi/hssf/model/TestDrawingAggregate.java
@@ -118,11 +118,7 @@ class TestDrawingAggregate {
             UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get();
             for (RecordBase rb : aggRecords) {
                 Record r = (org.apache.poi.hssf.record.Record) rb;
-                try {
-                    out.write(r.serialize());
-                } catch (IOException e) {
-                    throw new RuntimeException(e);
-                }
+                out.write(r.serialize());
             }
             return out.toByteArray();
         }
@@ -263,11 +259,7 @@ class TestDrawingAggregate {
         UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get();
         for (RecordBase rb : records) {
             Record r = (org.apache.poi.hssf.record.Record) rb;
-            try {
-                out.write(r.serialize());
-            } catch (IOException e) {
-                throw new RuntimeException(e);
-            }
+            out.write(r.serialize());
         }
         return out.toByteArray();
     }
diff --git a/poi/src/test/java/org/apache/poi/hssf/model/TestEscherRecordFactory.java b/poi/src/test/java/org/apache/poi/hssf/model/TestEscherRecordFactory.java
index 091802098c..f641b6eeb3 100644
--- a/poi/src/test/java/org/apache/poi/hssf/model/TestEscherRecordFactory.java
+++ b/poi/src/test/java/org/apache/poi/hssf/model/TestEscherRecordFactory.java
@@ -42,11 +42,7 @@ class TestEscherRecordFactory {
         UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get();
         for (RecordBase rb : records) {
             Record r = (org.apache.poi.hssf.record.Record) rb;
-            try {
-                out.write(r.serialize());
-            } catch (IOException e) {
-                throw new RuntimeException(e);
-            }
+            out.write(r.serialize());
         }
         return out.toByteArray();
     }
diff --git a/poi/src/test/java/org/apache/poi/hssf/record/TestRecordFactory.java b/poi/src/test/java/org/apache/poi/hssf/record/TestRecordFactory.java
index a44cce0e42..fb3f44eb6c 100644
--- a/poi/src/test/java/org/apache/poi/hssf/record/TestRecordFactory.java
+++ b/poi/src/test/java/org/apache/poi/hssf/record/TestRecordFactory.java
@@ -211,11 +211,7 @@ final class TestRecordFactory {
         };
         UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
         for (org.apache.poi.hssf.record.Record rec : recs) {
-            try {
-                baos.write(rec.serialize());
-            } catch (IOException e) {
-                throw new RuntimeException(e);
-            }
+            baos.write(rec.serialize());
         }
         //simulate the bad padding at the end of the workbook stream in attachment 23483 of bug 46987
         baos.write(0x00);