pulumi / pulumi/pulumi-java

Serialization error when using helm to install a chart with Java

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#629 14 comments 0 reactions 1 assignee View on GitHub

@pawelprazak is already working on this.

Since Aug 27, 2026.

area/sdks impact/breaking kind/bug language/java
Dominant language
Java
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Description

What happened?

Error when using helm to install a chart with Java.

Steps to reproduce
return new Release("nginx",
                ReleaseArgs.builder()
                        .chart("nginx-ingress")
                        .version("1.24.4")
                        .repositoryOpts(RepositoryOptsArgs.builder().repo("https://charts.helm.sh/stable").build())
                        .valueYamlFiles(new FileAsset("./values.yaml"))
                        .build(),
                CustomResourceOptions.builder()
                        .provider(provider)
                        .build());
Expected Behavior

Working code.

Actual Behavior
java.lang.UnsupportedOperationException: Convert [com.pulumi.kubernetes.helm.sh_v3.Release.resourceNames]: Error converting 'com.google.common.collect.RegularImmutableMap' to 'TypeShape{type=interface java.util.Map, parameters=[TypeShape{type=class java.lang.String, parameters=[]}, TypeShape{type=interface java.util.List, parameters=[]}]}'. Expected a parameter type for the List, got none
Versions used

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Additional context

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