File: Issue1522.java

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// Test case for Issue 1522
// https://github.com/typetools/checker-framework/issues/1522

import java.util.Vector;
import org.checkerframework.checker.nullness.qual.Nullable;

class Issue1522 {
    void copyInto(String p) {}

    void bar() {
        copyInto("Hi");
    }

    void copyVector(Vector<String> v, Integer[] intArray, String[] stringArray) {
        // Java types aren't compatible
        // :: error: (vector.copyinto.type.incompatible)
        v.copyInto(intArray);
        v.copyInto(stringArray);
    }

    void copyStack(SubClassVector<String> v, Integer[] intArray, String[] stringArray) {
        // Java types aren't compatible
        // :: error: (vector.copyinto.type.incompatible)
        v.copyInto(intArray);
        v.copyInto(stringArray);
    }

    void copyVectorErrors(Vector<@Nullable String> v, String[] stringArray) {
        // :: error: (vector.copyinto.type.incompatible)
        v.copyInto(stringArray);
    }

    void copyStackErrors(SubClassVector<@Nullable String> v, String[] stringArray) {
        // :: error: (vector.copyinto.type.incompatible)
        v.copyInto(stringArray);
    }

    void copyVectorNullable(Vector<@Nullable String> v, @Nullable String[] stringArray) {
        v.copyInto(stringArray);
    }

    void copyStackNullable(SubClassVector<@Nullable String> v, @Nullable String[] stringArray) {
        v.copyInto(stringArray);
    }

    static class SubClassVector<T> extends Vector<T> {
        @Override
        public synchronized void copyInto(@Nullable Object[] anArray) {
            super.copyInto(anArray);
        }
    }
}