2022-08-22

Corrupted GitLab 15.2 was back to online.

GitLab 15.2 was corrupted due to whatever reasons...

finally service back to running by:

sudo gitlab-ctl reconfigure

2022-08-16

MySQL backup time consumed

version: 8.0.30

MySQL dump

zipped

100MB / 90 seconds

700MB+ / 10 mins

2022-08-03

Resolved: has been injected into other beans in its raw version as part of a circular reference

Resolved by referring to:

has been injected into other beans in its raw version as part of a circular reference, but has eventually been wrapped. This means that said other beans do not use the final version of the bean. This is often the result of over-eager type matching - consider using 'getBeanNamesOfType' with the 'allowEagerInit' flag turned off, for example.

structure to tell the story...

@Service

public class MainService{

@Autowired

private ServiceParent

}

@Service

public class ServiceParent{

@Autowired

private ServiceChild

}

@Service

public class ServiceChild{

@Autowired

private ServiceParent

}

then will hit the exception while maven run the application locally/at server.

@Service

public class ServiceChild{

@Autowired

@Lazy

private ServiceParent

}

2022-08-01

Keycloak 18.0.2

HTTP Error

302

401

500

clientId missing

solved by changing json config from installation as below

from:

"auth-server-url": "http://localhost:9000/",

"ssl-required": "none",

"resource": "localsfaportal",

to:

"url": "http://localhost:9000/",

"ssl-required": "none",

"clientId": "localsfaportal",

[KEYCLOAK] Usage of legacy style promise methods such as `.error()` and `.success()` has been deprecated and support will be removed in future versions. Use standard style promise methods such as `.then() and `.catch()` instead.

resolved by changing init javascript

from:

keycloak.init().success().error()

to:

keycloak.init().then().catch()

has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

Solved by adding * as print screen below:

2022-07-27

Upgrade Spring Boot from 1.5.20.RELEASE to 2.7.2

as of: 20220727_pm070452, Still editing...

Stacks

From Spring Boot + Keycloak

To: Spring Boot + Keycloak + Spring Security

Version

from: 1.5.20.RELEASE

to: 2.7.2

Changes

pom.xml
CSRF - default implementation of Spring Security

Controllers
Services

Repo

Batch Save
Batch Delete
Delete
FindOne
Pageable

application.properties

pom.xml

Added

<groupId>org.springframework.security</groupId>

<artifactId>spring-security-config</artifactId>

</dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-security</artifactId>

</dependency>

<groupId>org.keycloak</groupId>

<artifactId>keycloak-spring-boot-starter</artifactId>

</dependency>

<groupId>org.keycloak</groupId>

<artifactId>keycloak-spring-security-adapter</artifactId>

</dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-validation</artifactId>

</dependency>

<groupId>org.keycloak.bom</groupId>

<artifactId>keycloak-adapter-bom</artifactId>

<version>${version.keycloak-adapter-bom}</version>

</dependency>

Modified

from:

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-parent</artifactId>

<version>1.5.20.RELEASE</version>

</parent>

to:

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-parent</artifactId>

</parent>

from:

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

<java.version>1.8</java.version>

<spring-cloud.version>Edgware.SR5</spring-cloud.version>

</properties>

to:

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

<java.version>1.8</java.version>

<start-class>com.tiongnam.sfa.cdr.MainClass</start-class>

<spring-cloud.version>2021.0.3</spring-cloud.version>

<version.keycloak-adapter-bom>18.0.2</version.keycloak-adapter-bom>

</properties>

from:

<groupId>org.keycloak</groupId>

<artifactId>keycloak-spring-boot-adapter</artifactId>

<version>4.5.0.Final</version>

</dependency>

to:

<groupId>org.keycloak</groupId>

<artifactId>keycloak-spring-boot-adapter</artifactId>

</dependency>

CSRF - default implementation of Spring Security

Added header into ajax post request

, headers: {"${_csrf.headerName}": '${_csrf.token}'}

Added spring security tag within POST form:

<sec:csrfInput />

turn off csrf checking

protected void configure(HttpSecurity http) throws Exception {

org.springframework.security.config.annotation.web.builders.HttpSecurity http.csrf().disable();

...

Controllers:

Changed

From:

org.keycloak.KeycloakPrincipal<RefreshableKeycloakSecurityContext> principal

To:

java.security.Principal principal

Services

Batch Save

Changed

From:

repo.save(batchList)

To:

repo.saveAll(batchList);

findOne

From:

repo.findOne(new Long("1"));

To:

repo.getReferenceById(new Long("1"));

Delete

From:

delete(entity.getId());

To:

deleteById(entity.getId());

Pageable

From:

Pageable page_req = new PageRequest(index,reqData.getLength(), orderBy(reqData), reqData.getOrder().getData());

To:

Pageable page_req = PageRequest.of(index, reqData.getLength(), orderBy(reqData), reqData.getOrder().getData());

application.properties

Added

server.tomcat.max-http-form-post-size

server.tomcat.max-swallow-size

Changed

server.contextPath

server.servlet.context-path

spring.http.multipart.max-file-size

spring.servlet.multipart.max-file-size

spring.http.multipart.max-request-size

spring.servlet.multipart.max-request-size

keycloak.securityConstraints[0].authRoles[0]=read-only-common

keycloak.securityConstraints[0].securityCollections[0].patterns[0]=/welcome

keycloak.securityConstraints[0].securityCollections[0].patterns[1]=/logout

keycloak.securityConstraints[0].securityCollections[0].patterns[2]=/dashboard

keycloak.securityConstraints[0].securityCollections[0].patterns[3]=/web/getDashboard

@Override

protected void configure(HttpSecurity http) throws Exception {

super.configure(http);

http.authorizeRequests()

.antMatchers("/vendor/**", "/css/**", "/js/**", "/img/**").permitAll()

.antMatchers("/upload").authenticated()

.antMatchers("/formd/**", "/module1/**", "/maintenance/**").authenticated()

.anyRequest().authenticated()

;

}

2022-07-21

ajax, upload file, json string, Spring Controller, DTO

Googled: json to dto spring boot controller

Resolved by follow the example on:

Spring Boot controller - Upload Multipart and JSON to DTO

thread solution at: https://stackoverflow.com/a/49993072

Ajax Javascript

formData.append( 'dtoName', new Blob([JSON.stringify(dtoJavascriptObject)], {
type: "application/json"
}));

Spring Controller parameter

@RequestPart ManualGenerateCsv dtoName

couldn't parse json attribute to java object attribute.

private boolean isRequiredFtpToSSS;

public void setRequiredFtpToSSS(boolean isRequiredFtpToSSS) {

this.isRequiredFtpToSSS = isRequiredFtpToSSS;

}

Since your attribute name: isRequiredFtpToSSS

Due to jackson is expecting: setIsRequiredFtpToSSS

But there has no "is for the auto generated setter: setRequiredFtpToSSS

So u have to add this.

@JsonProperty("isRequiredFtpToSSS")

private boolean isRequiredFtpToSSS;

Jackson JSON parsing from string to date.

@JsonFormat(pattern = "yyyy-MMM-dd")

private Date dateFrom;

not sure if were causing by:

MethodArgumentConversionNotSupportedException when I try to map json string onto java domain class in Spring controller's method

jquery 3.3.1 change checkbox checked

Found:

Make checkbox value checked with jQuery or JavaScript

but seems not the same case.

the one i'm using.

$("#chkHasDateTo").prop('checked', dto.hasDateTo);

But i remember there are more elegant way to do the same thing....

Jquery Datepicker: click on a checkbox, then open/pop datepicker of a textbox.

click on a checkbox, then open/pop datepicker of a textbox.

if($("#chkHasDateTo").is(":checked")){

$( "#dateTo" ).trigger( "select" );

$( "#dateTo" ).trigger( "focus" );

}

2022-07-13

全 #Lesley [Legend V] #MVP 7.7/6 4 6 | $13383 202206142025

全 #Lesley [Legend V] #MVP 7.7/6 4 6 | $13383 202206142025 https://youtu.be/tnp0nELuY8Q via @YouTube #MLBB

Java does new instance consume many memory

Found: https://stackoverflow.com/a/258150

Measurement methods

You can use Instrumentation.getObjectSize() to obtain an estimate of the storage consumed by an object.

eclipse maven "JUnit" "javaagent"

refer to: https://www.blogger.com/blog/post/edit/10648886/7778852398276118981

eclipse maven "JUnit" "javaagent"

Found this:

https://stackoverflow.com/a/35775792

You can use ea-agent-loader

With it loading an agent in runtime will look like:

public class HelloAgentWorld
{
    public static class HelloAgent
    {
        public static void agentmain(String agentArgs, Instrumentation inst)
        {
            System.out.println(agentArgs);
            System.out.println("Hi from the agent!");
            System.out.println("I've got instrumentation!: " + inst);
        }
    }

    public static void main(String[] args)
    {
        AgentLoader.loadAgentClass(HelloAgent.class.getName(), "Hello!");
    }
}

全 #Rafaela [Epic I] #MVP 9.6/4 3 21 | $8313 202205281332 https://youtu.be/jUNpF3a8HPI via @YouTube #MLBB

2022-07-12

eclipse added hotkey for svn actions are not working.

SVN key bindings not working in Eclipse

Reference URL: https://stackoverflow.com/a/3640441

It may be due to this breaking change in Eclipse 3.6:

http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.platform.doc.isv/porting/3.6/incompatibilities.html?view=co#objectContribution

EDIT:

Looks like it definitely is. See https://bugs.eclipse.org/bugs/show_bug.cgi?id=309074. Here's the fix:

In the "Customize Perspective" dialog, go to the "Command Groups Availability" tab and check "Team" and "SVN".

In Eclipse Mars.2 (4.5.2) this is under Window->Perspective->Customize Perspective... dialog, "Action Set Availability" tab. (Try to restart Eclipse if it doesn't work after you change it). Customize Perspective dialog screenshot

Right click on current perspective:

Click on Customize...

Click on "Action Set Availability"

From Available action sets column:

Tick / Check the SVN checkbox, then Apply and Close.

Tested without restart eclipse, the hot key is working now.

2022-07-06

Resolved - @PreUpdate not working in JUnit test.

javax.persistence.PreUpdate

object need to be "dirty" to trigger...

obj.setColumn01("text");

repo.save(obj);

then make obj "dirty" before save to trigger @PreUpdate

obj.setColumn01("new text);
repo.save(obj);

Reference URL: https://www.javafixing.com/2021/12/fixed-preupdate-does-not-work-with.html

Solution

As you said, the callback method is called the second time, if the entity is detached or fetched again from DB.

I cannot explain it exactly, but can think of the scenario described here, when no dirty fields are identified before the second save() call and thus the @PreUpdate callback not called. Or it may be simply a bug within your version of EclipseLink.

2022-07-01

Setup local Keycloak for development

https://stackoverflow.com/a/72600716

Keycloak 18.0.2 doesn't required "/auth" as endpoint

new config:

keycloak.auth-server-url=http://localhost:8080

would be enough

We are sorry... page not found... error

Mandatory Config in Keycloak

while hitting we are sorry page not found error

was using http://localhost:8080/auth for keycloak.auth-server

while testing with https://www.keycloak.org/app/

hit error if didn't fill: https://www.keycloak.org/app/

to:

Root URL: https://www.keycloak.org/app/

If config below never in place, will trigger error: Invalid parameter: redirect_uri

Valid Redirect URIs: *

Respective Keycloak role in Spring Boot authRole config

keycloak.securityConstraints[0].authRoles[0]=xyz

Respective config in Keycloak (18.0.2)

In user Role mappings:

Different of SVNs

SVN

Getting(install) SVN feature from

Eclipse Marketplace... VS Install New Software

Eclipse Marketplace...

Install New Software

http://subclipse.tigris.org/update_1.6.x

subclipse.tigris.org no longer available...

http://subclipse.tigris.org/update_1.10.x

http://subclipse.tigris.org/update_1.6.x

above are not reachable...

Found a post telling to get from Eclipse Marketplace

Help > Eclipse Marketplace...

But during installation, but still retrieve resource from:

2022-08-22

2022-08-16

2022-08-03

2022-08-01

clientId missing

[KEYCLOAK] Usage of legacy style promise methods such as `.error()` and `.success()` has been deprecated and support will be removed in future versions. Use standard style promise methods such as `.then() and `.catch()` instead.

has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

2022-07-27

Stacks

Version

Changes

pom.xml

Added

Modified

CSRF - default implementation of Spring Security

Controllers:

Changed

Services

Batch Save

findOne

Delete

Pageable

application.properties

Added

Changed

2022-07-21

2022-07-13

Measurement methods

2022-07-12

2022-07-06

Solution

2022-07-01

Keycloak 18.0.2 doesn't required "/auth" as endpoint

We are sorry... page not found... error

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