j-tim’s gists

j-tim / application.properties

Created September 29, 2019 17:50

Enable Global Lazy bean initialization (Available Since Spring Boot 2.2)

spring.main.lazy.initialization=true

j-tim / apache-kafka-jmx-error.log

Created September 29, 2019 14:19

Apache Kafka JMX connector server communication error

	Error: JMX connector server communication error: service:jmx:rmi://13529ed4a4a9:9999
	sun.management.AgentConfigurationError: java.rmi.server.ExportException: Port already in use: 9999; nested exception is:
	java.net.BindException: Address already in use (Bind failed)
	at sun.management.jmxremote.ConnectorBootstrap.exportMBeanServer(ConnectorBootstrap.java:800)
	at sun.management.jmxremote.ConnectorBootstrap.startRemoteConnectorServer(ConnectorBootstrap.java:468)
	at sun.management.Agent.startAgent(Agent.java:262)
	at sun.management.Agent.startAgent(Agent.java:452)
	Caused by: java.rmi.server.ExportException: Port already in use: 9999; nested exception is:
	java.net.BindException: Address already in use (Bind failed)
	at sun.rmi.transport.tcp.TCPTransport.listen(TCPTransport.java:346)

j-tim / docker-compose-single-kafka-broker.yml

Created September 29, 2019 09:24

Docker compose file to run Confluent Kafka and Zookeeper Docker images.

	version: '3.7'

	services:

	# https://hub.docker.com/r/confluentinc/cp-zookeeper/tags
	zookeeper:
	image: confluentinc/cp-zookeeper:5.3.1
	container_name: zookeeper
	hostname: zookeeper
	ports:

j-tim / http.client.requests.json

Created July 13, 2019 09:20

Spring Boot / Micrometer Actuator RestTemplate Metrics. http://localhost:8080/actuator/metrics/http.client.requests

	{
	name: "http.client.requests",
	description: "Timer of RestTemplate operation",
	baseUnit: "seconds",
	measurements: [
	{
	statistic: "COUNT",
	value: 1
	},
	{

j-tim / RestTemplateConfiguration.java

Created July 13, 2019 09:16

RestTemplate instance using the RestTemplateBuilder

	package io.stockgeeks.hello.world.api;

	import org.springframework.boot.web.client.RestTemplateBuilder;
	import org.springframework.context.annotation.Bean;
	import org.springframework.context.annotation.Configuration;
	import org.springframework.web.client.RestTemplate;

	@Configuration
	public class RestTemplateConfiguration {

j-tim / HelloWorldController.java

Created July 13, 2019 09:13

Autowire the RestTemplate bean in the controller

	package io.stockgeeks.hello.world.api;

	import lombok.extern.slf4j.Slf4j;
	import org.springframework.web.bind.annotation.GetMapping;
	import org.springframework.web.bind.annotation.RestController;
	import org.springframework.web.client.RestTemplate;

	@RestController
	@Slf4j
	public class HelloWorldController {

j-tim / RestTemplateConfiguration.java

Created July 13, 2019 09:11

Create a RestTemplate instance as a bean.

	package io.stockgeeks.hello.world.api;

	import org.springframework.context.annotation.Bean;
	import org.springframework.context.annotation.Configuration;
	import org.springframework.web.client.RestTemplate;

	@Configuration
	public class RestTemplateConfiguration {

	@Bean

j-tim / HelloWorldController.java

Created July 12, 2019 12:38

Create a RestTemplate instance myself.

	package io.stockgeeks.hello.world.api;

	import lombok.extern.slf4j.Slf4j;
	import org.springframework.web.bind.annotation.GetMapping;
	import org.springframework.web.bind.annotation.RestController;
	import org.springframework.web.client.RestTemplate;

	@RestController
	@Slf4j
	public class HelloWorldController {

j-tim / dependency-check-issue.log

Last active October 27, 2018 19:55

mvn dependency-check:check --debug > dependency-check-issue.log

	Apache Maven 3.5.4 (1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-17T20:33:14+02:00)
	Maven home: /home/tim/Development/tools/maven/current
	Java version: 1.8.0_181, vendor: Oracle Corporation, runtime: /usr/lib/jvm/java-8-oracle/jre
	Default locale: en_US, platform encoding: UTF-8
	OS name: "linux", version: "4.15.0-36-generic", arch: "amd64", family: "unix"
	[DEBUG] Created new class realm maven.api
	[DEBUG] Importing foreign packages into class realm maven.api
	[DEBUG] Imported: javax.annotation.* < plexus.core
	[DEBUG] Imported: javax.annotation.security.* < plexus.core
	[DEBUG] Imported: javax.enterprise.inject.* < plexus.core

Tim van Baarsen j-tim