gzdzss opened a new issue #1679:
URL: https://github.com/apache/shardingsphere-elasticjob/issues/1679
ElasticJob-Lite
### Actual behavior
Run : org.apache.shardingsphere.elasticjob.lite.example.JavaMain
```
[ERROR] 2020-10-30 13:55:23,520 --main--
[org.apache.zookeeper.server.NIOServerCnxnFactory] Thread Thread[main,5,main]
died
java.lang.NullPointerException: null
at
java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
~[na:1.8.0_231]
at
org.apache.shardingsphere.elasticjob.infra.spi.ElasticJobServiceLoader.lambda$newTypedServiceInstance$4(ElasticJobServiceLoader.java:81)
~[classes/:na]
at java.util.Optional.map(Optional.java:215) ~[na:1.8.0_231]
at
org.apache.shardingsphere.elasticjob.infra.spi.ElasticJobServiceLoader.newTypedServiceInstance(ElasticJobServiceLoader.java:81)
~[classes/:na]
at
org.apache.shardingsphere.elasticjob.lite.internal.schedule.JobScheduler.validateJobErrorHandlerProperties(JobScheduler.java:122)
~[classes/:na]
at
org.apache.shardingsphere.elasticjob.lite.internal.schedule.JobScheduler.validateJobProperties(JobScheduler.java:118)
~[classes/:na]
at
org.apache.shardingsphere.elasticjob.lite.internal.schedule.JobScheduler.<init>(JobScheduler.java:102)
~[classes/:na]
at
org.apache.shardingsphere.elasticjob.lite.api.bootstrap.impl.ScheduleJobBootstrap.<init>(ScheduleJobBootstrap.java:40)
~[classes/:na]
at
org.apache.shardingsphere.elasticjob.lite.example.JavaMain.setUpHttpJob(JavaMain.java:101)
~[classes/:na]
at
org.apache.shardingsphere.elasticjob.lite.example.JavaMain.main(JavaMain.java:71)
~[classes/:na]
````
### Reason analyze (If you can)
jobErrorHandlerType is null , need default to be "LOG".
```java
private void validateJobErrorHandlerProperties() {
ElasticJobServiceLoader.newTypedServiceInstance(JobErrorHandlerPropertiesValidator.class,
jobConfig.getJobErrorHandlerType(), jobConfig.getProps())
.ifPresent(validator ->
validator.validate(jobConfig.getProps()));
}
```
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