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package com.siyeh.igtest.threading;
public class NonThreadSafeLazyInitialization {
private static Object foo;
private Object instance;
public Object getInstance() {
if (instance == null) {
instance = new Object();
}
return instance;
}
static
{
if (foo == null) {
foo = new Object();
}
}
{
if (foo == null) {
<warning descr="Lazy initialization of 'static' field 'foo' is not thread-safe">foo</warning> = new Object();
}
}
public void instMethod() {
if (foo == null) {
<warning descr="Lazy initialization of 'static' field 'foo' is not thread-safe">foo</warning> = new Object();
}
}
public static void staticMethod() {
if (foo == null) {
<warning descr="Lazy initialization of 'static' field 'foo' is not thread-safe">foo</warning> = new Object();
}
}
public void lockedInstMethod() {
synchronized (NonThreadSafeLazyInitialization.class) {
if (foo == null) {
foo = new Object();
}
}
}
private static String example = null;
public Object getInstance2() {
if (foo == null) {
while (true) {
foo = "";
}
}
return foo;
}
public Object getInstance3() {
if (foo == null) <warning descr="Lazy initialization of 'static' field 'foo' is not thread-safe">foo</warning> = "";
return foo;
}
}
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