Changed logic behind how CanSubclassChecker checks for mutability in src/main/java/org/mutabilitydetector/checkers/CanSubclassChecker.java b/src/main/java/org/mutabilitydetector/checkers/CanSubclassChecker.java

CanSubclassChecker.java

  diff --git a/src/main/java/org/mutabilitydetector/checkers/CanSubclassChecker.java b/src/main/java/org/mutabilitydetector/checkers/CanSubclassChecker.java
index 947cd5e..c8baaf2 100644
--- a/src/main/java/org/mutabilitydetector/checkers/CanSubclassChecker.java
+++ b/src/main/java/org/mutabilitydetector/checkers/CanSubclassChecker.java
@@ -39,7 +39,7 @@ public final class CanSubclassChecker extends AbstractMutabilityChecker {
     
     @Override
     public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
-        if (MethodIs.aConstructor(name) && method(access).isNotPrivate()) {
+        if (MethodIs.aConstructor(name) && (method(access).isNotPrivate()) && method(access).isNotSynthetic()) {
             hasOnlyPrivateConstructors = false;
         }
         return super.visitMethod(access, name, desc, signature, exceptions);