I try to open a socket connection on a Linux machine through JNI. If I combine Java_Socket_socket and Java_Socket_bind in same C function, the JNI call works perfectly, but it doesn’t work when I run methods sequentially. This is my code Java code Output: If I create C program from this code, and as reg…
Tag: java
Spring boot – org.postgresql.util.PSQLException: FATAL: password authentication failed for user “postgres” [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 8 m…
Junit5 Parameterized Test LifeCycle. why @BeforeAll and static block run after all the tests
I am posting a simple code below, why does @BeforeAll annotated method and static block run after the Parameterized tests? How do I register a common object or Database connection in this case before loading the Parameterized test in Junit5 or leverage the functionality of @BeforeAll or static block. (FYI: Th…
Can’t pass extracted string into body object in JMeter [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 8 m…
Spring giving 404 on loginProcessingUrl when authenticating login
I’ve configured my Spring app to authenticate logins using the /authenticate url, but each time I try signing in it throws the following error: org.springframework.web.servlet.DispatcherServlet.noHandlerFound No mapping for POST /authenticate I’m confused because as far as I’m aware, the log…
How to read the Language.properties file in Liferay (outside of portlet)?
Say I have 3 modules in a Liferay project, A, B and language. Module A is a normal module with portlet in it. Module B, however, is a portletless module, it is nothing more than a plain Java utility module. language module is something like what is described in the “Localizing Your Application” ar…
Lombok @Builder How create a field with timestamp of value change?
I have the following class: Is there any way to add a timestamp for when the class is initialized and when the value is changed/edited/updated? I have attempted adding: But does not seem to be what I am looking for. Answer You could achieve it with a few options. However, Lombok could not help you will it. Yo…
Is replacing one java object reference with another considered thread safe, or are there potential synchronicity issues I’m overlooking?
I’m rolling my own simple caching solution to improve the UX of a lengthy lookup. The basic outline is that I have a class handling all accountId lookups, and another class called AccountListCache with two variables: a timestamp indicating when it was created, and a List object containing a whole bunch …
Workarounds to implement interface including , with X[] type parameter
Let’s say we have some interface like this: I’m using Foo a lot in my codebase, but I wish to add the TIn extends T to make it more flexible, to eg have a Foo<Map<X>> able to encode a HashMap<X> or a TreeMap<X>. This works really well – until I tried to implement Foo&…
How to retrieve using the Client code the Access Token generated on the Server-side?
Looking at the Twilio documentation it seems that “you create [Access Tokens] on your server to verify a user’s identity and grant access to client API features.” Here, Twilio provides a few different ways to programmatically create Access Tokens on the Server side – it looks pretty straight…