src/jdk.scripting.nashorn/share/classes/jdk/internal/dynalink/support/CallSiteDescriptorFactory.java

*** 89,98 ****
--- 89,99 ----
  import java.lang.ref.Reference;
  import java.lang.ref.WeakReference;
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.List;
+ import java.util.Objects;
  import java.util.StringTokenizer;
  import java.util.WeakHashMap;
  import jdk.internal.dynalink.CallSiteDescriptor;
  
  /**
*** 121,133 ****
       * @param methodType the type of the method at the call site. Must not be null.
       * @return a call site descriptor representing the input. Note that although the method name is "create", it will
       * in fact return a weakly-referenced canonical instance.
       */
      public static CallSiteDescriptor create(final Lookup lookup, final String name, final MethodType methodType) {
!         name.getClass(); // NPE check
!         methodType.getClass(); // NPE check
!         lookup.getClass(); // NPE check
          final String[] tokenizedName = tokenizeName(name);
          if(isPublicLookup(lookup)) {
              return getCanonicalPublicDescriptor(createPublicCallSiteDescriptor(tokenizedName, methodType));
          }
          return new LookupCallSiteDescriptor(tokenizedName, methodType, lookup);
--- 122,134 ----
       * @param methodType the type of the method at the call site. Must not be null.
       * @return a call site descriptor representing the input. Note that although the method name is "create", it will
       * in fact return a weakly-referenced canonical instance.
       */
      public static CallSiteDescriptor create(final Lookup lookup, final String name, final MethodType methodType) {
!         Objects.requireNonNull(name);
!         Objects.requireNonNull(methodType);
!         Objects.requireNonNull(lookup);
          final String[] tokenizedName = tokenizeName(name);
          if(isPublicLookup(lookup)) {
              return getCanonicalPublicDescriptor(createPublicCallSiteDescriptor(tokenizedName, methodType));
          }
          return new LookupCallSiteDescriptor(tokenizedName, methodType, lookup);