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import java.util.Iterator;

import java.util.List;

import static org.junit.Assert.*;

import static org.hamcrest.core.IsNull.*;

import static org.hamcrest.MatcherAssert.*;

public class A {

public void notTest() {

Object not_ok = null;

if (!(!(!(not_ok == null)))) {

not_ok.hashCode();

}

Object not = null;

if (!(not != null)) {

not.hashCode();

}

}

public void assertNull(Object o) {

if (o != null)

throw new RuntimeException("assert failed");

}

private static boolean isNull(Object o) {

return o == null;

}

private static boolean isNotNull(Object o) {

return o != null;

}

public void assertNonNull(Object o, String msg) {

if (o == null)

throw new RuntimeException("assert failed: " + msg);

}

public void assertNotNullTest() {

Object assertNotNull_ok1 = maybe() ? null : new Object();

assertNotNull(assertNotNull_ok1);

assertNotNull_ok1.toString();

Object assertNotNull_ok2 = maybe() ? null : new Object();

assertNotNull("", assertNotNull_ok2);

assertNotNull_ok2.toString();

Object assertNotNull_ok3 = maybe() ? null : new Object();

assertNonNull(assertNotNull_ok3, "");

assertNotNull_ok3.toString();

}

public void assertTrueTest() {

String assertTrue = "";

assertTrue(assertTrue == null);

assertTrue.toString();

String assertTrue_ok = maybe() ? null : "";

assertTrue(assertTrue_ok != null);

assertTrue_ok.toString();

}

public void assertFalseTest() {

String assertFalse = "";

assertFalse(assertFalse != null);

assertFalse.toString();

String assertFalse_ok = maybe() ? null : "";

assertFalse(assertFalse_ok == null);

assertFalse_ok.toString();

}

public void assertNullTest() {

String assertNull = "";

assertNull(assertNull);

assertNull.toString();

}

public void testNull() {

String testNull_ok1 = null;

if (isNotNull(testNull_ok1)) {

testNull_ok1.toString();

}

String testNull_ok2 = null;

if (!isNull(testNull_ok2)) {

testNull_ok2.toString();

}

}

public void instanceOf() {

Object instanceof_ok = null;

if (instanceof_ok instanceof String) {

instanceof_ok.hashCode();

}

}

public void synchronised() {

Object synchronized_always = null;

synchronized(synchronized_always) {

synchronized_always.hashCode();

}

}

public void loop1(List<Integer> list){

for (Integer loop1_ok : list) {

loop1_ok.toString();

loop1_ok = null;

}

}

public void loop2(Iterator<Integer> iter){

for (Integer loop2_ok = 0; iter.hasNext(); loop2_ok = iter.next()) {

loop2_ok.toString();

loop2_ok = null;

}

}

public void conditional(){

String colours = null;

String colour = (((colours == null)) || colours.isEmpty()) ? "Black" : colours.toString();

}

public void simple() {

String[] children = null;

String comparator = "";

if (children == null) {

children = new String[0];

}

if (children.length > 1) { }

}

public void assignIf() {

String xx;

String ok = null;

if ((ok = (xx = null)) == null || ok.isEmpty()) {

}

}

public void assignIf2() {

String ok2 = null;

if (foo(ok2 = "hello") || ok2.isEmpty()) {

}

}

public void assignIfAnd() {

String xx;

String ok3 = null;

if ((xx = (ok3 = null)) != null && ok3.isEmpty() ) {

}

}

public boolean foo(String o) { return false; }

public void dowhile() {

String do_ok = "";

do {

System.out.println(do_ok.length());

do_ok = null;

} while((do_ok != null));

String do_always = null;

do {

System.out.println(do_always.length());

do_always = null;

} while(do_always != null);

String do_maybe1 = null;

do {

System.out.println(do_maybe1.length());

} while(do_maybe1 != null);

String do_maybe = "";

do {

System.out.println(do_maybe.length());

do_maybe = null;

} while(true);

}

public void while_() {

String while_ok = "";

while(while_ok != null) {

System.out.println(while_ok.length());

while_ok = null;

}

boolean TRUE = true;

String while_always = null;

while(TRUE) {

System.out.println(while_always.length());

while_always = null;

}

String while_maybe = "";

while(true) {

System.out.println(while_maybe.length());

while_maybe = null;

}

}

public void if_() {

String if_ok = "";

if (if_ok != null) {

System.out.println(if_ok.length());

if_ok = null;

}

String if_always = null;

if (if_always == null) {

System.out.println(if_always.length());

if_always = null;

}

String if_maybe = "";

if (if_maybe != null && if_maybe.length() % 2 == 0) {

if_maybe = null;

}

System.out.println(if_maybe.length());

}

public void for_() {

String for_ok ;

for (for_ok = ""; for_ok != null; for_ok = null) {

System.out.println(for_ok.length());

}

System.out.println(for_ok.length());

for (String for_always = null; ((for_always == null)); for_always = null) {

System.out.println(for_always.length());

}

for (String for_maybe = ""; ; for_maybe = null) {

System.out.println(for_maybe.length());

}

}

public void array_assign_test() {

int[] array_null = null;

array_null[0] = 10;

int[] array_ok;

array_ok = new int[10];

array_ok[0] = 42;

}

public void access() {

int[] arrayaccess = null;

String[] fieldaccess = null;

Object methodaccess = null;

System.out.println(arrayaccess[1]);

System.out.println(fieldaccess.length);

System.out.println(methodaccess.toString());

System.out.println(arrayaccess[1]);

System.out.println(fieldaccess.length);

System.out.println(methodaccess.toString());

}

public void enhanced_for() {

List<String> for_ok = java.util.Collections.emptyList();

for (String s : for_ok)

System.out.println(s);

System.out.println(for_ok.size());

List<String> for_always = null;

for (String s : for_always)

System.out.println(s);

System.out.println(for_always.size());

List<String> for_maybe = java.util.Collections.emptyList();

for (String s : for_maybe) {

System.out.println(s);

for_maybe = null;

}

System.out.println(for_maybe.size());

}

public void assertFalseInstanceofTest() {

Object s = String.valueOf(1);

assertFalse(s instanceof Number);

s.toString().isEmpty();

}

public void assertVariousTest() {

Object s = String.valueOf(1);

assertNotNull(s);

assertFalse(s instanceof Number);

assertTrue(s.toString().contains("1"));

assertFalse(s.toString().isEmpty());

}

public void assertFalseNotNullNestedTest() {

Object s = String.valueOf(1);

assertFalse(s != null || !"1".equals("1")); // assertTrue(s==null)

s.toString().isEmpty();

}

public void testForLoopCondition(Iterable iter) {

Iterator it = null;

for (it = iter.iterator(); !!it.hasNext(); ) {}

}

public void assertThatTest() {

Object assertThat_ok1 = maybe() ? null : new Object();

assertThat(assertThat_ok1, notNullValue());

assertThat_ok1.toString();

}

private boolean m;

A(boolean m) {

this.m = m;

}

boolean maybe() {

return this.m;

}

}