diff --git a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/BoolAnyValueStatelessMarshaler.java b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/BoolAnyValueStatelessMarshaler.java
index da05b557c8f..950aaa39f7d 100644
--- a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/BoolAnyValueStatelessMarshaler.java
+++ b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/BoolAnyValueStatelessMarshaler.java
@@ -16,6 +16,8 @@
 final class BoolAnyValueStatelessMarshaler implements StatelessMarshaler<Boolean> {
   static final BoolAnyValueStatelessMarshaler INSTANCE = new BoolAnyValueStatelessMarshaler();
 
+  private BoolAnyValueStatelessMarshaler() {}
+
   @Override
   public void writeTo(Serializer output, Boolean value, MarshalerContext context)
       throws IOException {
diff --git a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/DoubleAnyValueStatelessMarshaler.java b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/DoubleAnyValueStatelessMarshaler.java
index 879116d3f0f..7403b241ab2 100644
--- a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/DoubleAnyValueStatelessMarshaler.java
+++ b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/DoubleAnyValueStatelessMarshaler.java
@@ -16,6 +16,8 @@
 final class DoubleAnyValueStatelessMarshaler implements StatelessMarshaler<Double> {
   static final DoubleAnyValueStatelessMarshaler INSTANCE = new DoubleAnyValueStatelessMarshaler();
 
+  private DoubleAnyValueStatelessMarshaler() {}
+
   @Override
   public void writeTo(Serializer output, Double value, MarshalerContext context)
       throws IOException {
diff --git a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/IntAnyValueStatelessMarshaler.java b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/IntAnyValueStatelessMarshaler.java
index c1b97dd02a4..407a586ec80 100644
--- a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/IntAnyValueStatelessMarshaler.java
+++ b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/IntAnyValueStatelessMarshaler.java
@@ -16,6 +16,8 @@
 final class IntAnyValueStatelessMarshaler implements StatelessMarshaler<Long> {
   static final IntAnyValueStatelessMarshaler INSTANCE = new IntAnyValueStatelessMarshaler();
 
+  private IntAnyValueStatelessMarshaler() {}
+
   @Override
   public void writeTo(Serializer output, Long value, MarshalerContext context) throws IOException {
     output.writeInt64(AnyValue.INT_VALUE, value);
diff --git a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/StringAnyValueStatelessMarshaler.java b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/StringAnyValueStatelessMarshaler.java
index 59924ae4dbc..9d9af0b5d0c 100644
--- a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/StringAnyValueStatelessMarshaler.java
+++ b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/StringAnyValueStatelessMarshaler.java
@@ -21,6 +21,8 @@
 final class StringAnyValueStatelessMarshaler implements StatelessMarshaler<String> {
   static final StringAnyValueStatelessMarshaler INSTANCE = new StringAnyValueStatelessMarshaler();
 
+  private StringAnyValueStatelessMarshaler() {}
+
   @Override
   public void writeTo(Serializer output, String value, MarshalerContext context)
       throws IOException {
diff --git a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/InstrumentationScopeSpansStatelessMarshaler.java b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/InstrumentationScopeSpansStatelessMarshaler.java
index 7bfdcb75adb..decec18ea79 100644
--- a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/InstrumentationScopeSpansStatelessMarshaler.java
+++ b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/InstrumentationScopeSpansStatelessMarshaler.java
@@ -23,6 +23,8 @@ final class InstrumentationScopeSpansStatelessMarshaler
   static final InstrumentationScopeSpansStatelessMarshaler INSTANCE =
       new InstrumentationScopeSpansStatelessMarshaler();
 
+  private InstrumentationScopeSpansStatelessMarshaler() {}
+
   @Override
   public void writeTo(
       Serializer output,
diff --git a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/ResourceSpansStatelessMarshaler.java b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/ResourceSpansStatelessMarshaler.java
index de2aa078f0e..7ae30feb91d 100644
--- a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/ResourceSpansStatelessMarshaler.java
+++ b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/ResourceSpansStatelessMarshaler.java
@@ -31,6 +31,8 @@ public final class ResourceSpansStatelessMarshaler
   private static final MarshalerContext.Key SCOPE_SPAN_WRITER_KEY = MarshalerContext.key();
   private static final MarshalerContext.Key SCOPE_SPAN_SIZE_CALCULATOR_KEY = MarshalerContext.key();
 
+  private ResourceSpansStatelessMarshaler() {}
+
   @Override
   public void writeTo(
       Serializer output,
diff --git a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanEventStatelessMarshaler.java b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanEventStatelessMarshaler.java
index ef09f065749..491b8d44c30 100644
--- a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanEventStatelessMarshaler.java
+++ b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanEventStatelessMarshaler.java
@@ -19,6 +19,8 @@
 final class SpanEventStatelessMarshaler implements StatelessMarshaler<EventData> {
   static final SpanEventStatelessMarshaler INSTANCE = new SpanEventStatelessMarshaler();
 
+  private SpanEventStatelessMarshaler() {}
+
   @Override
   public void writeTo(Serializer output, EventData event, MarshalerContext context)
       throws IOException {
diff --git a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanLinkStatelessMarshaler.java b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanLinkStatelessMarshaler.java
index 2b711d8e96c..0ed091096de 100644
--- a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanLinkStatelessMarshaler.java
+++ b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanLinkStatelessMarshaler.java
@@ -21,6 +21,8 @@
 final class SpanLinkStatelessMarshaler implements StatelessMarshaler<LinkData> {
   static final SpanLinkStatelessMarshaler INSTANCE = new SpanLinkStatelessMarshaler();
 
+  private SpanLinkStatelessMarshaler() {}
+
   @Override
   public void writeTo(Serializer output, LinkData link, MarshalerContext context)
       throws IOException {
diff --git a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanStatelessMarshaler.java b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanStatelessMarshaler.java
index 80703cf628d..40adefd143d 100644
--- a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanStatelessMarshaler.java
+++ b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanStatelessMarshaler.java
@@ -22,6 +22,8 @@
 final class SpanStatelessMarshaler implements StatelessMarshaler<SpanData> {
   static final SpanStatelessMarshaler INSTANCE = new SpanStatelessMarshaler();
 
+  private SpanStatelessMarshaler() {}
+
   @Override
   public void writeTo(Serializer output, SpanData span, MarshalerContext context)
       throws IOException {
diff --git a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanStatusStatelessMarshaler.java b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanStatusStatelessMarshaler.java
index ba37729d636..0609c0e6829 100644
--- a/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanStatusStatelessMarshaler.java
+++ b/exporters/otlp/common/src/main/java/io/opentelemetry/exporter/internal/otlp/traces/SpanStatusStatelessMarshaler.java
@@ -21,6 +21,8 @@
 final class SpanStatusStatelessMarshaler implements StatelessMarshaler<StatusData> {
   static final SpanStatusStatelessMarshaler INSTANCE = new SpanStatusStatelessMarshaler();
 
+  private SpanStatusStatelessMarshaler() {}
+
   @Override
   public void writeTo(Serializer output, StatusData status, MarshalerContext context)
       throws IOException {