spring-projects/spring-boot · error · ReportableException

Invalid content received from server (${ex.getMessage()})

Error message

Invalid content received from server (${ex.getMessage()})

What it means

Error "Invalid content received from server (${ex.getMessage()})" thrown in spring-projects/spring-boot.

Source

Thrown at cli/spring-boot-cli/src/main/java/org/springframework/boot/cli/command/init/InitializrService.java:140

	Object loadServiceCapabilities(String serviceUrl) throws IOException {
		HttpGet request = new HttpGet(serviceUrl);
		request.setHeader(new BasicHeader(HttpHeaders.ACCEPT, ACCEPT_SERVICE_CAPABILITIES));
		ClassicHttpResponse httpResponse = execute(request, URI.create(serviceUrl), "retrieve help");
		validateResponse(httpResponse, serviceUrl);
		HttpEntity httpEntity = httpResponse.getEntity();
		ContentType contentType = ContentType.create(httpEntity.getContentType());
		if (contentType.getMimeType().equals("text/plain")) {
			return getContent(httpEntity);
		}
		return parseJsonMetadata(httpEntity);
	}

	private InitializrServiceMetadata parseJsonMetadata(HttpEntity httpEntity) throws IOException {
		try {
			return new InitializrServiceMetadata(getContentAsJson(httpEntity));
		}
		catch (JSONException ex) {
			throw new ReportableException("Invalid content received from server (" + ex.getMessage() + ")", ex);
		}
	}

	private void validateResponse(ClassicHttpResponse httpResponse, String serviceUrl) {
		if (httpResponse.getEntity() == null) {
			throw new ReportableException("No content received from server '" + serviceUrl + "'");
		}
		if (httpResponse.getCode() != 200) {
			throw createException(serviceUrl, httpResponse);
		}
	}

	private ProjectGenerationResponse createResponse(ClassicHttpResponse httpResponse, HttpEntity httpEntity)
			throws IOException {
		ProjectGenerationResponse response = new ProjectGenerationResponse(
				ContentType.create(httpEntity.getContentType()));
		response.setContent(FileCopyUtils.copyToByteArray(httpEntity.getContent()));
		String fileName = extractFileName(httpResponse.getFirstHeader("Content-Disposition"));

View on GitHub (pinned to 5b2dbdbb8b)

When it happens

Trigger: Thrown at cli/spring-boot-cli/src/main/java/org/springframework/boot/cli/command/init/InitializrService.java:140 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of spring-projects/spring-boot@5b2dbdbb8b (2026-08-04). Data as JSON: /data/errors/4d0ce1bd29e6f108.json. Report an issue: GitHub.