callCount++
	})
	// wrap with start and completed handler
	wrapped := TrackCompleted(handler)
	wrapped = TrackStarted(wrapped, tp, filterName)

	testRequest, err := http.NewRequest(http.MethodGet, "/api/v1/namespaces", nil)
	if err != nil {
		t.Fatalf("failed to create new http request - %v", err)
	}

	wrapped.ServeHTTP(httptest.NewRecorder(), testRequest)

	if callCount != 1 {

        () -> new ClassSanityTester().doTestEquals(SetWrapper.class));
  }

  private abstract static class Wrapper {
    private final Object wrapped;

    Wrapper(Object wrapped) {
      this.wrapped = checkNotNull(wrapped);
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      // In general getClass().isInstance() is bad for equals.

            [fromStringList(), "execute(command)", "", ""],
            [fromObjectList(), "execute(command)", "", ""],
            // Spread calls
            [fromString(), "execute(*[command])", "", ""],
            // type-wrapped arguments
            [fromGroovyString(), "execute(command as String)", "", ""],
        ]
    }

            [fromObjectList(), "ProcessGroovyMethods.execute(command)", "", ""],
            // Spread calls
            [fromString(), "ProcessGroovyMethods.execute(*[command])", "", ""],
            // type-wrapped arguments
            [fromGroovyString(), "ProcessGroovyMethods.execute(command as String)", "", ""],
        ]
    }

            [fromStringArray(), "Runtime.getRuntime().exec(command)", "", ""],
            // Spread calls
            [fromString(), "Runtime.getRuntime().exec(*[command])", "", ""],
            // type-wrapped arguments
            [fromGroovyString(), "Runtime.getRuntime().exec(command as String)", "", ""],
            [fromObjectList(), "Runtime.getRuntime().exec(command as String[])", "", ""],
            // Null-safe calls

            // Typed nulls
            [fromString(), "Runtime.getRuntime().exec(command, null as String[])", "", ""],
            // type-wrapped arguments
            [fromGroovyString(), "Runtime.getRuntime().exec(command as String, null)", "", ""],
            [fromObjectList(), "Runtime.getRuntime().exec(command as String[], null)", "", ""],
            // Null-safe calls

            // Typed nulls
            [fromString(), "Runtime.getRuntime().exec(command, null, null as File)", "", ""],
            // type-wrapped arguments
            [fromGroovyString(), "Runtime.getRuntime().exec(command as String, null, null)", "", ""],
            [fromObjectList(), "Runtime.getRuntime().exec(command as String[], null, null)", "", ""],

	return true
}

// Returns the keys of all the wrapped envoyfilters.
func (efw *EnvoyFilterWrapper) Keys() []string {
	if efw == nil {
		return nil
	}
	keys := sets.String{}
	for _, patches := range efw.Patches {
		for _, patch := range patches {
			keys.Insert(patch.Key())
		}
	}
	return sets.SortedList(keys)
}

// Returns the keys of all the wrapped envoyfilters.

            [fromString(), "command.execute(null, (File) null)", "", ""],
            [fromString(), "command.execute((String[]) null, (File) null)", "", ""],
            // type-wrapped arguments
            [fromString(), "command.execute((String[]) ['FOOBAR=foobar'], null)", "", "foobar"],
            [fromString(), "command.execute((List) ['FOOBAR=foobar'], null)", "", "foobar"],

            [fromString(), "ProcessGroovyMethods.execute(command, null, (File) null)", "", ""],
            [fromString(), "ProcessGroovyMethods.execute(command, (String[]) null, (File) null)", "", ""],
            // type-wrapped arguments
            [fromGroovyString(), "ProcessGroovyMethods.execute(command as String, null, null)", "", ""],
            [fromString(), "ProcessGroovyMethods.execute(command, (String[]) ['FOOBAR=foobar'], null)", "", "foobar"],