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87 lines
1.4 KiB
87 lines
1.4 KiB
/*
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* Copyright (c) 2018-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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package codetoanalyze.java.checkers;
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import com.facebook.infer.annotation.ThreadSafe;
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class Intraprocedural {
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static class B {
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int g = 0;
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}
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static class A {
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B f = new B();
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int h = 0;
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}
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@ThreadSafe
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static class Field {
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private A a = new A();
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public void unstable_ok() {
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int x = 42;
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B b = a.f; // destabilizes
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synchronized (this) {
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a.f.g = 101;
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}
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x = a.f.g;
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}
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public void FN_stable_bad() {
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int x = 42;
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synchronized (this) {
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a.f.g = 101;
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}
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x = a.f.g;
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}
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}
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static class Param {
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public void unstable_ok(A a) {
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int x = 42;
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B b = a.f; // destabilizes
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synchronized (this) {
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a.f.g = 101;
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}
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x = a.f.g;
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}
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public void stable_bad(A a) {
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int x = 42;
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synchronized (this) {
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a.f.g = 101;
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}
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x = a.f.g;
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}
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}
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@ThreadSafe
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static class Global {
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private static A a = new A();
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public synchronized A getA() {
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return a;
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}
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public synchronized void setA(A newA) {
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a = newA;
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}
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public void unstable_ok() {
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int x = 42;
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A a = getA(); // destabilizes
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synchronized (this) {
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a.f.g = 101;
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}
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x = a.f.g;
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}
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}
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}
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