network QuickAckTest.java failed due to "SocketException: maximum number of DatagramSockets reached"

The following test failed in the JDK14 CI:

jdk/net/Sockets/QuickAckTest.java

Here's a snippet from the log file:

----------System.err:(18/1193)----------
java.net.SocketException: maximum number of DatagramSockets reached
at java.base/sun.net.ResourceManager.beforeUdpCreate(ResourceManager.java:72)
at java.base/java.net.AbstractPlainDatagramSocketImpl.create(AbstractPlainDatagramSocketImpl.java:91)
at java.base/java.net.DatagramSocket.createImpl(DatagramSocket.java:340)
at java.base/java.net.DatagramSocket.<init>(DatagramSocket.java:242)
at java.base/java.net.MulticastSocket.<init>(MulticastSocket.java:169)
at java.base/java.net.MulticastSocket.<init>(MulticastSocket.java:140)
at QuickAckTest.main(QuickAckTest.java:47)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:298)
at java.base/java.lang.Thread.run(Thread.java:830)

JavaTest Message: Test threw exception: java.net.SocketException
JavaTest Message: shutting down test

result: Failed. Execution failed: `main' threw exception: java.net.SocketException: maximum number of DatagramSockets reached


test result: Failed. Execution failed: `main' threw exception: java.net.SocketException: maximum number of DatagramSockets reached