[Demonstration 1]

[Buggy Method]
public static boolean getFashJstl() {
    return instance.getBoolean("ayada.compile.fast-jstl");
}

[Buggy Hunk]
return instance.getBoolean("ayada.compile.fast-jstl");

[Patch]
return instance.getBoolean("ayada.compile.fast-jstl", Boolean.TRUE);

[Demonstration 2]

[Buggy Method]
@Test
public void testCsereKratya() {
    System.out.println("csereKratya");
    Pakli instance = new Pakli();
    boolean expResult = true;
    boolean result = instance.csereKratya();
    assertEquals(expResult, result);
    instance.kartyak.forEach(item -> {
        item.setPlaceID(7);
    });
    expResult = false;
    result = instance.csereKratya();
    assertEquals(expResult, result);
}

[Buggy Hunk]
instance.kartyak.forEach(item->{

[Patch]
instance.getKartyak().forEach(item->{

[Demonstration 3]

[Buggy Method]
public GroupCall getGroupCalls() {
    return groupCalls;
}

[Buggy Hunk]
public GroupCall getGroupCalls() {

[Patch]
public GroupCall[] getGroupCalls() {