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interface I {
int m(int i);
}
interface J {
int m();
}
public class XXX {
static void foo() {
int l = 0;
int j = 0;
j = 2;
final int L = 0;
I i = (int h) -> { int k = 0; return h + <error descr="Variable used in lambda expression should be effectively final">j</error> + l + L; };
}
void bar() {
int l = 0;
int j = 0;
j = 2;
final int L = 0;
I i = (int h) -> { int k = 0; return h + k + <error descr="Variable used in lambda expression should be effectively final">j</error> + l + L; };
}
void foo(J i) { }
void m1(int x) {
int y = 1;
foo(() -> x+y);
}
void m2(int x) {
int y;
y = 1;
foo(() -> x+y);
}
void m3(int x, boolean cond) {
int y;
if (cond) y = 1;
foo(() -> x+<error descr="Variable 'y' might not have been initialized">y</error>);
}
void m4(int x, boolean cond) {
int y;
if (cond) y = 1;
else y = 2;
foo(() -> x+y);
}
void m5(int x, boolean cond) {
int y;
if (cond) y = 1;
y = 2;
foo(() -> x+<error descr="Variable used in lambda expression should be effectively final">y</error>);
}
void m6(int x) {
foo(() -> <error descr="Variable used in lambda expression should be effectively final">x</error>+1);
x++;
}
void m7(int x) {
foo(() -> <error descr="Variable used in lambda expression should be effectively final">x</error>=1);
}
void m8() {
int y;
foo(() -> <error descr="Variable used in lambda expression should be effectively final">y</error>=1);
}
}
class Sample {
public static void main(String[] args) {
Runnable runnable = () -> {
Integer i;
if (true) {
i = 111;
System.out.println(i);
}
};
Runnable runnable2 = () -> {
Integer i2 = 333;
i2 = 444;
System.out.println(i2);
};
runnable.run(); // prints 111
runnable2.run(); // prints 444
}
}
class ParameterIsEffectivelyFinal {
{
Comparable<String> c = o->{
new Runnable() {
@Override
public void run() {
System.out.println(o);
}
}.run();
return 0;
};
Comparable<String> c1 = o->{
o = "";
new Runnable() {
@Override
public void run() {
System.out.println(<error descr="Variable 'o' is accessed from within inner class, needs to be declared final">o</error>);
}
}.run();
return 0;
};
}
}
class IDEA114737 {
private void on(String propertyName) {
if (!"taskServices".equals(propertyName)) {
return;
}
java.util.List<String> newList = null;
Comparable<String> c1 = o -> {
System.out.println(newList);
return 0;
};
}
}
class IDEA128196 {
void a() {
int value;
try {
value = 1;
} catch (Exception e) {
return;
}
new Thread(() -> System.out.println(value));
}
}
class FinalAssignmentInInitializer {
private final String x;
{
Runnable r = () -> <error descr="Cannot assign a value to final variable 'x'">x</error> = "";
x = "";
}
}
class AssignmentToFinalInsideLambda {
boolean isTrue() {
return true;
}
Runnable r = () -> {
final int i;
if (isTrue()) {
i = 1;
} else {
i = 0;
}
};
void a() {
Runnable r = () -> {
final int i;
if (isTrue()) {
i = 1;
} else {
i = 0;
}
};
}
}
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