wingyiu opened a new issue, #301:
URL: https://github.com/apache/apisix-java-plugin-runner/issues/301
### Issue description
NPE when get config of ext plugin, then cause 503
```
@Override
public Mono<Void> filter(HttpRequest request, HttpResponse response,
PluginFilterChain chain) {
String configStr = request.getConfig(this);
```
```
java.lang.IndexOutOfBoundsException: null
at java.nio.Buffer.checkIndex(Buffer.java:546) ~[?:1.8.0_111]
at java.nio.DirectByteBuffer.getInt(DirectByteBuffer.java:685)
~[?:1.8.0_111]
at com.google.flatbuffers.Table.__vector_len(Table.java:125)
~[flatbuffers-java-1.12.0.jar!/:?]
at io.github.api7.A6.PrepareConf.Req.confLength(Req.java:20)
~[A6-0.1.0-RELEASE.jar!/:?]
at
org.apache.apisix.plugin.runner.HttpRequest.getConfig(HttpRequest.java:61)
~[apisix-runner-plugin-sdk-0.1.0.jar!/:0.1.0]
at
org.apache.apisix.plugin.runner.filter.DeveloperPlatformSSOFilter.filter(DeveloperPlatformSSOFilter.java:72)
~[apisix-runner-plugin-0.1.0.jar!/:0.1.0]
at
org.apache.apisix.plugin.runner.filter.PluginFilterChain.filter(PluginFilterChain.java:54)
~[apisix-runner-plugin-sdk-0.1.0.jar!/:0.1.0]
at
org.apache.apisix.plugin.runner.handler.A6HttpCallHandler.handle(A6HttpCallHandler.java:57)
~[apisix-runner-core-0.1.0.jar!/:0.1.0]
at
org.apache.apisix.plugin.runner.handler.A6HandlerConfiguration.lambda$createDispatcher$0(A6HandlerConfiguration.java:76)
~[apisix-runner-core-0.1.0.jar!/:0.1.0]
at
reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:106)
[reactor-core-3.4.13.jar!/:3.4.13]
at
reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:120)
[reactor-core-3.4.13.jar!/:3.4.13]
at
reactor.core.publisher.FluxHandle$HandleSubscriber.onNext(FluxHandle.java:119)
[reactor-core-3.4.13.jar!/:3.4.13]
```
it looks like A6-0.1.0-RELEASE has bug
### Environment
* your apisix-java-plugin-runner version
### Minimal test code / Steps to reproduce the issue
1.
2.
3.
### What's the actual result? (including assertion message & call stack if
applicable)
### What's the expected result?
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