elastic/elasticsearch · error · IllegalArgumentException

[units] must not be null: [{name}]

Error message

[units] must not be null: [{name}]

What it means

Error "[units] must not be null: [{name}]" thrown in elastic/elasticsearch.

Source

Thrown at modules/aggregations/src/main/java/org/elasticsearch/aggregations/pipeline/DerivativePipelineAggregationBuilder.java:102

    public String format() {
        return format;
    }

    public DerivativePipelineAggregationBuilder gapPolicy(GapPolicy gapPolicy) {
        if (gapPolicy == null) {
            throw new IllegalArgumentException("[gapPolicy] must not be null: [" + name + "]");
        }
        this.gapPolicy = gapPolicy;
        return this;
    }

    public GapPolicy gapPolicy() {
        return gapPolicy;
    }

    public DerivativePipelineAggregationBuilder unit(String units) {
        if (units == null) {
            throw new IllegalArgumentException("[units] must not be null: [" + name + "]");
        }
        this.units = units;
        return this;
    }

    public DerivativePipelineAggregationBuilder unit(DateHistogramInterval units) {
        if (units == null) {
            throw new IllegalArgumentException("[units] must not be null: [" + name + "]");
        }
        this.units = units.toString();
        return this;
    }

    public String unit() {
        return units;
    }

    @Override

View on GitHub (pinned to db6a809a66)

When it happens

Trigger: Thrown at modules/aggregations/src/main/java/org/elasticsearch/aggregations/pipeline/DerivativePipelineAggregationBuilder.java:102 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of elastic/elasticsearch@db6a809a66 (2026-08-12). Data as JSON: /api/errors/99d5948553743399. Report an issue: GitHub.