diff --git a/java/core/src/main/java/com/google/protobuf/CodedOutputStream.java b/java/core/src/main/java/com/google/protobuf/CodedOutputStream.java
index df38bd02c6bb3..cffa4cfb2e687 100644
--- a/java/core/src/main/java/com/google/protobuf/CodedOutputStream.java
+++ b/java/core/src/main/java/com/google/protobuf/CodedOutputStream.java
@@ -2044,7 +2044,12 @@ public void writeUInt32NoTag(int value) throws IOException {
 
     @Override
     public void writeFixed32NoTag(int value) throws IOException {
-      buffer.putInt(bufferPos(position), value);
+      try {
+        buffer.putInt(bufferPos(position), value);
+      } catch (IndexOutOfBoundsException e) {
+        throw new OutOfSpaceException(
+            String.format("Pos: %d, limit: %d, len: %d", position, limit, FIXED32_SIZE), e);
+      }
       position += FIXED32_SIZE;
     }
 
@@ -2078,7 +2083,12 @@ public void writeUInt64NoTag(long value) throws IOException {
 
     @Override
     public void writeFixed64NoTag(long value) throws IOException {
-      buffer.putLong(bufferPos(position), value);
+      try {
+        buffer.putLong(bufferPos(position), value);
+      } catch (IndexOutOfBoundsException e) {
+        throw new OutOfSpaceException(
+            String.format("Pos: %d, limit: %d, len: %d", position, limit, FIXED64_SIZE), e);
+      }
       position += FIXED64_SIZE;
     }
 
diff --git a/java/core/src/test/java/com/google/protobuf/CodedOutputStreamTest.java b/java/core/src/test/java/com/google/protobuf/CodedOutputStreamTest.java
index c4f20360e2f5d..9e6529696a555 100644
--- a/java/core/src/test/java/com/google/protobuf/CodedOutputStreamTest.java
+++ b/java/core/src/test/java/com/google/protobuf/CodedOutputStreamTest.java
@@ -291,16 +291,9 @@ public void testWriteFixed32NoTag_outOfBounds_throws() throws Exception {
     // Streaming's buffering masks out of bounds writes.
     assume().that(outputType).isNotEqualTo(OutputType.STREAM);
 
-    Class<? extends Exception> e = OutOfSpaceException.class;
-    // UnsafeDirectNioEncoder is incorrectly throwing IndexOutOfBoundsException for some operations.
-    if (outputType == OutputType.NIO_DIRECT_UNSAFE
-        || outputType == OutputType.NIO_DIRECT_UNSAFE_WITH_INITIAL_OFFSET) {
-      e = IndexOutOfBoundsException.class;
-    }
-
     for (int i = 0; i < 4; i++) {
       Coder coder = outputType.newCoder(i);
-      assertThrows(e, () -> coder.stream().writeFixed32NoTag(1));
+      assertThrows(OutOfSpaceException.class, () -> coder.stream().writeFixed32NoTag(1));
     }
   }
 
@@ -309,16 +302,9 @@ public void testWriteFixed64NoTag_outOfBounds_throws() throws Exception {
     // Streaming's buffering masks out of bounds writes.
     assume().that(outputType).isNotEqualTo(OutputType.STREAM);
 
-    Class<? extends Exception> e = OutOfSpaceException.class;
-    // UnsafeDirectNioEncoder is incorrectly throwing IndexOutOfBoundsException for some operations.
-    if (outputType == OutputType.NIO_DIRECT_UNSAFE
-        || outputType == OutputType.NIO_DIRECT_UNSAFE_WITH_INITIAL_OFFSET) {
-      e = IndexOutOfBoundsException.class;
-    }
-
     for (int i = 0; i < 8; i++) {
       Coder coder = outputType.newCoder(i);
-      assertThrows(e, () -> coder.stream().writeFixed64NoTag(1));
+      assertThrows(OutOfSpaceException.class, () -> coder.stream().writeFixed64NoTag(1));
     }
   }