src/java.base/share/classes/java/nio/charset/CoderResult.java

*** 202,218 ****
                  throw new IllegalArgumentException("Non-positive length");
              Integer k = len;
              WeakReference<CoderResult> w;
              CoderResult e = null;
              if (cache == null) {
!                 cache = new HashMap<Integer,WeakReference<CoderResult>>();
              } else if ((w = cache.get(k)) != null) {
                  e = w.get();
              }
              if (e == null) {
                  e = create(len);
!                 cache.put(k, new WeakReference<CoderResult>(e));
              }
              return e;
          }
  
      }
--- 202,218 ----
                  throw new IllegalArgumentException("Non-positive length");
              Integer k = len;
              WeakReference<CoderResult> w;
              CoderResult e = null;
              if (cache == null) {
!                 cache = new HashMap<>();
              } else if ((w = cache.get(k)) != null) {
                  e = w.get();
              }
              if (e == null) {
                  e = create(len);
!                 cache.put(k, new WeakReference<>(e));
              }
              return e;
          }
  
      }