I have SpringBootApplication using following libary of camunda zeebe.
<dependency>
<groupId>io.camunda</groupId>
<artifactId>spring-boot-starter-camunda-sdk</artifactId>
<version>8.6.13</version>
</dependency>
<dependency>
<groupId>io.camunda</groupId>
<artifactId>zeebe-protocol</artifactId>
<version>8.6.13</version>
</dependency>
<dependency>
<groupId>io.camunda</groupId>
<artifactId>zeebe-process-test-extension-testcontainer</artifactId>
<version>8.6.13</version>
<scope>test</scope>
</dependency>
The test starts zeebe as docker using testcontainer. The zeebe run fine as docker. After these maven jar point to 8.7.1 the Integration Tests start failing as getting Connection refused: /0.0.0.0:26500
In 8.7.1 zeebe api, the zeebe properties are prefixed slightly different.
camunda.client.zeebe.grpc-address (8.7.1)
zeebe.client.broker.grpc-address (older)
The issue get resolved after using the zeebe connection property as per latest library.