Tencent/tinker · error · NoSuchMethodException

Constructor with parameters {} not found in {}

Error message

Constructor with parameters {} not found in {}

What it means

ShareReflectUtil.findConstructor(Object instance, Class<?>... parameterTypes) walks the instance's class hierarchy calling getDeclaredConstructor and throws NoSuchMethodException('Constructor with parameters [<types>] not found in <instance.getClass()>') when no matching constructor exists. As with methods, the parameter match is exact — no boxing conversions or superclass parameters are accepted.

Source

Thrown at tinker-android/tinker-android-loader-no-op/src/main/java/com/tencent/tinker/loader/shareutil/ShareReflectUtil.java:164

     * @throws NoSuchMethodException if the constructor cannot be located
     */
    public static Constructor<?> findConstructor(Object instance, Class<?>... parameterTypes)
            throws NoSuchMethodException {
        for (Class<?> clazz = instance.getClass(); clazz != null; clazz = clazz.getSuperclass()) {
            try {
                Constructor<?> ctor = clazz.getDeclaredConstructor(parameterTypes);

                if (!ctor.isAccessible()) {
                    ctor.setAccessible(true);
                }

                return ctor;
            } catch (NoSuchMethodException e) {
                // ignore and search next
            }
        }

        throw new NoSuchMethodException("Constructor"
                + " with parameters "
                + Arrays.asList(parameterTypes)
                + " not found in " + instance.getClass());
    }

    /**
     * Replace the value of a field containing a non null array, by a new array containing the
     * elements of the original array plus the elements of extraElements.
     *
     * @param instance      the instance whose field is to be modified.
     * @param fieldName     the field to modify.
     * @param extraElements elements to append at the end of the array.
     */
    public static void expandFieldArray(Object instance, String fieldName, Object[] extraElements)
        throws NoSuchFieldException, IllegalArgumentException, IllegalAccessException {
        Field jlrField = findField(instance, fieldName);

        Object[] original = (Object[]) jlrField.get(instance);

View on GitHub (pinned to 1b7ea02c23)

Solutions

1. Enumerate getDeclaredConstructors() for the failing class and pass the exact parameter types observed.
2. Version-gate the constructor lookup and try known variants per API level.
3. Verify the instance passed is of the type you think (message prints instance.getClass()).
4. Keep tinker updated for maintained constructor compatibility.

Example fix

// before
Constructor<?> c = ShareReflectUtil.findConstructor(app, Context.class); // ctor may be (Context, String)

// after
for (Constructor<?> cand : app.getClass().getDeclaredConstructors()) {
    ShareTinkerLog.i(TAG, "ctor params: " + Arrays.toString(cand.getParameterTypes()));
}
Constructor<?> c = ShareReflectUtil.findConstructor(app, Context.class, String.class);

static boolean hasCtor(Class<?> c, Class<?>... p) {
    try { c.getDeclaredConstructor(p); return true; }
    catch (NoSuchMethodException e) { return false; }
}

catch NoSuchMethodException -> enumerate getDeclaredConstructors and pick by parameter-count/assignability instead of exact match

When it happens

Trigger: Requesting a constructor with parameter types that do not exactly match any declared constructor on the instance's class or its superclasses (e.g. (Context) when the ctor takes (Context, String)); instantiating framework classes whose ctor changed; instance being a subclass so the search starts lower than expected.

Common situations: Hidden framework constructors changing arity across Android versions; obfuscated classes with changed ctor signatures; generic factory code passing the wrong Class tokens.

Related errors

• Field {} not found in {}
• Method {} with parameters {} not found in {}
• file is null.
• name == null
• createDelegate failed

AI-assisted analysis of Tencent/tinker@1b7ea02c23 (2026-08-14). Data as JSON: /api/errors/34a71b84f359f31e. Report an issue: GitHub.