diff --git a/transpiler/java/com/google/j2cl/transpiler/frontend/common/FrontendConstants.java b/transpiler/java/com/google/j2cl/transpiler/frontend/common/FrontendConstants.java
index 9d81ca7dce..e4c1f42b0d 100644
--- a/transpiler/java/com/google/j2cl/transpiler/frontend/common/FrontendConstants.java
+++ b/transpiler/java/com/google/j2cl/transpiler/frontend/common/FrontendConstants.java
@@ -47,5 +47,13 @@ public final class FrontendConstants {
   public static final String DO_NOT_AUTOBOX_ANNOTATION_NAME =
       "javaemul.internal.annotations.DoNotAutobox";
 
+  public static final String UNCHECKED_CAST_ANNOTATION_NAME =
+      "javaemul.internal.annotations.UncheckedCast";
+
+  public static final String HAS_NO_SIDE_EFFECTS_ANNOTATION_NAME =
+      "javaemul.internal.annotations.HasNoSideEffects";
+
+  public static final String WASM_ANNOTATION_NAME = "javaemul.internal.annotations.Wasm";
+
   private FrontendConstants() {}
 }
diff --git a/transpiler/java/com/google/j2cl/transpiler/frontend/javac/JavaEnvironment.java b/transpiler/java/com/google/j2cl/transpiler/frontend/javac/JavaEnvironment.java
index 096569ed90..79711dec50 100644
--- a/transpiler/java/com/google/j2cl/transpiler/frontend/javac/JavaEnvironment.java
+++ b/transpiler/java/com/google/j2cl/transpiler/frontend/javac/JavaEnvironment.java
@@ -17,6 +17,8 @@
 
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.collect.ImmutableList.toImmutableList;
+import static com.google.j2cl.transpiler.frontend.common.FrontendConstants.HAS_NO_SIDE_EFFECTS_ANNOTATION_NAME;
+import static com.google.j2cl.transpiler.frontend.common.FrontendConstants.UNCHECKED_CAST_ANNOTATION_NAME;
 
 import com.google.common.base.Predicates;
 import com.google.common.collect.ImmutableList;
@@ -880,12 +882,12 @@ private MethodDescriptor createDeclaredMethodDescriptor(
 
   /** Returns true if the element is annotated with @UncheckedCast. */
   private static boolean hasUncheckedCastAnnotation(Element element) {
-    return AnnotationUtils.hasAnnotation(element, "javaemul.internal.annotations.UncheckedCast");
+    return AnnotationUtils.hasAnnotation(element, UNCHECKED_CAST_ANNOTATION_NAME);
   }
 
   /** Returns true if the element is annotated with @HasNoSideEffects. */
   private static boolean isAnnotatedWithHasNoSideEffects(Element element) {
-    return AnnotationUtils.hasAnnotation(element, "javaemul.internal.annotations.HasNoSideEffects");
+    return AnnotationUtils.hasAnnotation(element, HAS_NO_SIDE_EFFECTS_ANNOTATION_NAME);
   }
 
   private boolean isJavaLangObjectOverride(MethodSymbol method) {
diff --git a/transpiler/java/com/google/j2cl/transpiler/frontend/jdt/JdtEnvironment.java b/transpiler/java/com/google/j2cl/transpiler/frontend/jdt/JdtEnvironment.java
index c0fda35a73..80e959a823 100644
--- a/transpiler/java/com/google/j2cl/transpiler/frontend/jdt/JdtEnvironment.java
+++ b/transpiler/java/com/google/j2cl/transpiler/frontend/jdt/JdtEnvironment.java
@@ -18,6 +18,9 @@
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkState;
 import static com.google.common.collect.ImmutableList.toImmutableList;
+import static com.google.j2cl.transpiler.frontend.common.FrontendConstants.HAS_NO_SIDE_EFFECTS_ANNOTATION_NAME;
+import static com.google.j2cl.transpiler.frontend.common.FrontendConstants.UNCHECKED_CAST_ANNOTATION_NAME;
+import static com.google.j2cl.transpiler.frontend.common.FrontendConstants.WASM_ANNOTATION_NAME;
 
 import com.google.common.base.Splitter;
 import com.google.common.collect.FluentIterable;
@@ -249,7 +252,7 @@ private static boolean isArrayLengthBinding(IVariableBinding variableBinding) {
 
   /** Returns true if the binding is annotated with @UncheckedCast. */
   public static boolean hasUncheckedCastAnnotation(IBinding binding) {
-    return JdtAnnotationUtils.hasAnnotation(binding, "javaemul.internal.annotations.UncheckedCast");
+    return JdtAnnotationUtils.hasAnnotation(binding, UNCHECKED_CAST_ANNOTATION_NAME);
   }
 
   /** Helper method to work around JDT habit of returning raw collections. */
@@ -949,14 +952,14 @@ private ImmutableList<TypeDescriptor> convertTypeArguments(
   private static String getWasmInfo(ITypeBinding binding) {
     return JdtAnnotationUtils.getStringAttribute(
         JdtAnnotationUtils.findAnnotationBindingByName(
-            binding.getAnnotations(), "javaemul.internal.annotations.Wasm"),
+            binding.getAnnotations(), WASM_ANNOTATION_NAME),
         "value");
   }
 
   private static String getWasmInfo(IMethodBinding binding) {
     return JdtAnnotationUtils.getStringAttribute(
         JdtAnnotationUtils.findAnnotationBindingByName(
-            binding.getAnnotations(), "javaemul.internal.annotations.Wasm"),
+            binding.getAnnotations(), WASM_ANNOTATION_NAME),
         "value");
   }
 
@@ -1272,7 +1275,6 @@ private static boolean isAnnotatedWithJUnitRunWith(ITypeBinding typeBinding) {
   }
 
   private static boolean isAnnotatedWithHasNoSideEffects(IMethodBinding methodBinding) {
-    return JdtAnnotationUtils.hasAnnotation(
-        methodBinding, "javaemul.internal.annotations.HasNoSideEffects");
+    return JdtAnnotationUtils.hasAnnotation(methodBinding, HAS_NO_SIDE_EFFECTS_ANNOTATION_NAME);
   }
 }