There are more AWS SDK examples available in the [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub repo.

# Use `ListCoverage` with an AWS SDK
`ListCoverage`

The following code example shows how to use `ListCoverage`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code example: 
+  [Learn the basics](inspector_example_inspector_Scenario_section.md) 

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#### [ Java ]

**SDK for Java 2.x**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/inspector#code-examples). 

```
    /**
     * Lists AWS Inspector2 coverage details for scanned resources using a paginator.
     *
     * @param maxResults Maximum number of resources to return.
     */
    public CompletableFuture<String> listCoverageAsync(int maxResults) {
        ListCoverageRequest initialRequest = ListCoverageRequest.builder()
                .maxResults(maxResults)
                .build();

        ListCoveragePublisher paginator = getAsyncClient().listCoveragePaginator(initialRequest);
        StringBuilder summary = new StringBuilder();

        return paginator.subscribe(response -> {
            List<CoveredResource> coveredResources = response.coveredResources();

            if (coveredResources == null || coveredResources.isEmpty()) {
                summary.append("No coverage information available for this page.\n");
                return;
            }

            Map<String, List<CoveredResource>> byType = coveredResources.stream()
                    .collect(Collectors.groupingBy(CoveredResource::resourceTypeAsString));

            byType.forEach((type, list) ->
                    summary.append("  ").append(type)
                            .append(": ").append(list.size())
                            .append(" resource(s)\n")
            );

            // Include up to 3 sample resources per page
            for (int i = 0; i < Math.min(coveredResources.size(), 3); i++) {
                CoveredResource r = coveredResources.get(i);
                summary.append("  - ").append(r.resourceTypeAsString())
                        .append(": ").append(r.resourceId()).append("\n");
                summary.append("    Scan Type: ").append(r.scanTypeAsString()).append("\n");
                if (r.scanStatus() != null) {
                    summary.append("    Status: ").append(r.scanStatus().statusCodeAsString()).append("\n");
                }
                if (r.accountId() != null) {
                    summary.append("    Account ID: ").append(r.accountId()).append("\n");
                }
                summary.append("\n");
            }

        }).thenApply(v -> {
            if (summary.length() == 0) {
                return "No coverage information found across all pages.";
            } else {
                return "Coverage Information:\n" + summary.toString();
            }
        }).exceptionally(ex -> {
            Throwable cause = ex.getCause();
            if (cause instanceof ValidationException) {
                throw new CompletionException(
                        "Validation error listing coverage: " + cause.getMessage(), cause);
            } else if (cause instanceof Inspector2Exception e) {
                throw new CompletionException(
                        "Inspector2 service error: " + e.awsErrorDetails().errorMessage(), e);
            }
            throw new CompletionException("Unexpected error listing coverage: " + ex.getMessage(), ex);
        });
    }
```
+  For API details, see [ListCoverage](https://docs.aws.amazon.com/goto/SdkForJavaV2/inspector-2016-02-16/ListCoverage) in *AWS SDK for Java 2.x API Reference*. 

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