MethodHandle.java

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CompletableFuture.java

StreamCollector.java

RecordPattern.java

VirtualThread.java

MethodHandle.java

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MethodHandle.java

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var lookup = MethodHandles.lookup();↵

var mt = MethodType.methodType(String.class, int.class);↵

var mh = lookup.findVirtual(String.class, "substring", mt);↵

var composed = MethodHandles.filterReturnValue(mh,↵

lookup.findVirtual(String.class, "toUpperCase",↵

MethodType.methodType(String.class)));

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