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import org.checkerframework.checker.nullness.qual.*;
public class Synchronization {
// Plain
public void bad() {
Object o = null;
// :: error: (locking.nullable)
synchronized (o) {
} // should emit error
}
public void ok() {
// NonNull specifically
@NonNull Object o1 = "m";
synchronized (o1) {
}
}
public void flow() {
Object o = null;
o = "m";
synchronized (o) {
} // valid
o = null;
// :: error: (locking.nullable)
synchronized (o) {
} // invalid
}
public Synchronization() {
synchronized (this) {
}
}
}
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