NPE when no image tag is specified #676
Description
This is my current GenericContainer declaration:
@Shared
GenericContainer container = new GenericContainer("my-local-image")
.withEnv("CONFLUENCE_VERSION", "6.8.2")
.withExposedPorts(1990)
.waitingFor(Wait.forListeningPort())and I get the following error:
java.lang.NullPointerException
at org.testcontainers.utility.DockerImageName.toString(DockerImageName.java:97)
at java.lang.String.valueOf(String.java:2994)
at java.lang.StringBuilder.append(StringBuilder.java:131)
at org.testcontainers.images.RemoteDockerImage.toString(RemoteDockerImage.java:25)
at java.lang.String.valueOf(String.java:2994)
at java.lang.StringBuilder.append(StringBuilder.java:131)
at org.testcontainers.containers.GenericContainer.getDockerImageName(GenericContainer.java:841)
at org.testcontainers.containers.GenericContainer.setDockerImageName(GenericContainer.java:829)
at org.testcontainers.containers.GenericContainer.<init>(GenericContainer.java:185)
at com.comalatech.confluence.test.poc.PocSpec.$spock_initializeSharedFields(PocSpec.groovy:25)
FYI, the image exists locally and I am able to use it to launch containers using Docker for Mac