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Volodymyr-Mykychak · Sep 15, 2023 · 5ed5449 · 5ed5449
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commit 5ed5449
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diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -11,10 +11,10 @@ jobs:
         with:
           ref: ${{github.event.pull_request.head.ref}}
           repository: ${{github.event.pull_request.head.repo.full_name}}
-      - name: Set up JDK 17
+      - name: Set up JDK 11
         uses: actions/setup-java@v2
         with:
-          java-version: '17'
+          java-version: '11'
           distribution: 'adopt'
           cache: maven
       - name: Build with Maven

diff --git a/src/main/java/core/basesyntax/MyThread.java b/src/main/java/core/basesyntax/MyThread.java
@@ -10,6 +10,8 @@ public MyThread(Counter counter, String name) {
 
     @Override
     public void run() {
-        counter.decreaseValue();
+        synchronized (counter) {
+            counter.decreaseValue();
+        }
     }
 }