src/java.base/share/classes/sun/net/www/http/KeepAliveCache.java

*** 94,109 ****
               */
              final KeepAliveCache cache = this;
              java.security.AccessController.doPrivileged(
                  new java.security.PrivilegedAction<>() {
                  public Void run() {
!                     keepAliveTimer = new InnocuousThread(cache, "Keep-Alive-Timer");
                      keepAliveTimer.setDaemon(true);
                      keepAliveTimer.setPriority(Thread.MAX_PRIORITY - 2);
-                     // Set the context class loader to null in order to avoid
-                     // keeping a strong reference to an application classloader.
-                     keepAliveTimer.setContextClassLoader(null);
                      keepAliveTimer.start();
                      return null;
                  }
              });
          }
--- 94,106 ----
               */
              final KeepAliveCache cache = this;
              java.security.AccessController.doPrivileged(
                  new java.security.PrivilegedAction<>() {
                  public Void run() {
!                     keepAliveTimer = new InnocuousThread(cache, "Keep-Alive-Timer", false);
                      keepAliveTimer.setDaemon(true);
                      keepAliveTimer.setPriority(Thread.MAX_PRIORITY - 2);
                      keepAliveTimer.start();
                      return null;
                  }
              });
          }