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Questions - java-9

Cannot convert from Stream<T> to boolean

I'm trying to filter a list of objects say BOLReference based on a key which is present in the inner object of one of the List of Objects of this BOLReference. List<BOLReference> bolRef = compli...
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Mira Devi

java

java-8

spring-webflux

java-9

Votes: 0

Answers: 2

Latest Answer

Optional<BOLReference> bref = bolRef.stream() .filter(br -> br.getWorkflowExceptions().stream() .anyMatch(bk -> bk.getBusinessKeyValues().get(busin...
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Joop Eggen

Change in regex canonical equivalence matching between java 8 and 9

I have a big regex matching excel like coordinates in a text, which should ignore ranges. I noticed a change in behavior when updating java version. I simplified the regex and the code. Here is the co...
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Rudy

java

regex

java-8

java-9

Votes: 0

Answers: 0

Observer and Observable got deprecated and the reason stated is: they convey something has changed but not state what has changed, this is false?

Check this by open jdk deprecate Observer and Observable Observer and Observable Class: Observable:- class NewsAgency extends Observable { String news; public void setNews(String news) { this.new...
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N-RAYAN

java

java-8

observer-pattern

java-9

Votes: 0

Answers: 2

Latest Answer

But I was able to tell the observer that news has changed then. How that above statement is true? The text from the issue tracker link says: "For example, they support only the notion that so...
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Stephen C

Java Enum Deserialization without class model getting null value

I have an Enum class like below. I need to de serialize a Json string(With Key Value pair Format) to the below Enum Object very efficiently in Java8 or above. public enum TestEnum { RED("Appl...
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JAMBUGOLA MAHESH

java

java-8

enums

enumeration

java-9

Votes: 0

Answers: 1

Latest Answer

Got it , I need to mention the key name using @JsonProperty in the parameter Field of FromValue() @JsonCreator public static TestEnum fromValue(@JsonProperty(value = "name", required = t...
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JAMBUGOLA MAHESH

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