java Programming Glossary: invariant

http://stackoverflow.com/questions/1050592/do-spurious-wakeups-actually-happen

can only be avoided by the caller checking for an invariant. A POSIX signal will therefore generate a spurious wakeup. Summary..

What is an “internal address” in Java?

http://stackoverflow.com/questions/13860194/what-is-an-internal-address-in-java

objects sharing the same hash code this does not break any invariants. The computation is performed the first time a hash code is.. if value 0 value 0xBAD assert value markOopDesc no_hash invariant TEVENT hashCode GENERATE return value share improve this answer..

Fast algorithm for searching for substrings in a string

http://stackoverflow.com/questions/1765579/fast-algorithm-for-searching-for-substrings-in-a-string

Update I should have mentioned the set of CAND strings is invariant across all values of INSTR. Update I only need to know that..

What's the issue with creating a generic array? [duplicate]

http://stackoverflow.com/questions/18581002/whats-the-issue-with-creating-a-generic-array

String Will not compile. Reason being generics are invariant. Enforcing Type Check Generics were introduced in Java to enforce..

Assertion in Java?

http://stackoverflow.com/questions/2758224/assertion-in-java

in Java 1.4. They are used to verify the correctness of an invariant in the code. They should never be triggered in production code..

What is the difference between <E extends Number> and <Number>?

http://stackoverflow.com/questions/2770264/what-is-the-difference-between-e-extends-number-and-number

List Double etc. The second doesn't. Generics in Java are invariant. They're not covariant like arrays. That is in Java Double is.. extends Number . There are good reasons for generics being invariant but that's also why the extends and super type are often necessary..

What is a raw type and why shouldn't we use it?

http://stackoverflow.com/questions/2770321/what-is-a-raw-type-and-why-shouldnt-we-use-it

List Object list list.add new Object Generics in Java are invariant. A List String is not a List Object so the following would generate.. then the code would compile and you'd violate the type invariant of List String names . If it's unsafe why is it allowed to use..

Multiple wildcards on a generic methods makes Java compiler (and me!) very confused

http://stackoverflow.com/questions/3546745/multiple-wildcards-on-a-generic-methods-makes-java-compiler-and-me-very-confu

first remind ourselves what it means that Java generics is invariant An Integer is a Number A List Integer is NOT a List Number A.. of the answer it's a worthy supplement to the type invariant argument. 5.1.10 Capture Conversion Let G name a generic type..

Why is super.super.method(); not allowed in Java?

http://stackoverflow.com/questions/586363/why-is-super-super-method-not-allowed-in-java

item Now we could add whatever we like and the invariant in RedItems is broken. Does that make sense share improve this..

What is the difference between ? and Object in Java generics?

http://stackoverflow.com/questions/678822/what-is-the-difference-between-and-object-in-java-generics

arrays in Java are covariant generics are not they are invariant . Sample If you'd like to write a method that accepts List s..

Downsides to immutable objects in Java?

http://stackoverflow.com/questions/752280/downsides-to-immutable-objects-in-java

favor composition since it's much easier to maintain the invariant of a complex object when you can rely on its immutable components...

How do I investigate the cause of a JVM crash?

http://stackoverflow.com/questions/8152393/how-do-i-investigate-the-cause-of-a-jvm-crash

2075 tid 140042095163136 # guarantee PageArmed 0 failed invariant # # JRE version 6.0_23 b05 # Java VM Java HotSpot TM 64 Bit..

Covariance, Invariance and Contravariance explained in plain English?

http://stackoverflow.com/questions/8481301/covariance-invariance-and-contravariance-explained-in-plain-english

is contravariant if A &le B implies that f B &le f A f is invariant if neither of the above holds Let's consider an example. Let.. by class List T ... Is f covariant contravariant or invariant Covariant would mean that a List String is a subtype of List.. that a List Object is a subtype of List String and invariant that neither is a subtype of the other i.e. List String and..