Source:
<code>private static SampleDto writeUrls(SampleDto sampleDto, UriComponentsBuilder uriBuilder) { URI baseUri = uriBuilder.build().toUri(); sampleDto.setUrl(UriComponentsBuilder.fromUri(baseUri).path("/rest/tree/sample/{id}").buildAndExpand(sampleDto.getId()).toUriString()); <START> if (sampleDto.getSampleAdditionalInfo().getParentId() != null) { <END> sampleDto.getSampleAdditionalInfo().setParentUrl( UriComponentsBuilder.fromUri(baseUri).path("/rest/tree/sample/{id}").buildAndExpand(sampleDto.getSampleAdditionalInfo().getParentId()).toUriString()); } if (sampleDto.getRootSampleClassId() != null) { sampleDto.setRootSampleClassUrl(UriComponentsBuilder.fromUri(baseUri).path("/rest/sampleclass/{id}") .buildAndExpand(sampleDto.getRootSampleClassId()).toUriString()); } if (sampleDto.getSampleAdditionalInfo() != null) { SampleAdditionalInfoController.writeUrls(sampleDto.getSampleAdditionalInfo(), uriBuilder); } if (sampleDto.getSampleIdentity() != null) { SampleIdentityDto sid = sampleDto.getSampleIdentity(); sid.setSampleUrl(UriComponentsBuilder.fromUri(baseUri).path("/rest/tree/sample/{id}") .buildAndExpand(sampleDto.getId()).toUriString()); if (sid.getCreatedById() != null) { sid.setCreatedByUrl(UriComponentsBuilder.fromUri(baseUri).path("/rest/user/{id}") .buildAndExpand(sid.getCreatedById()).toUriString()); } if (sid.getUpdatedById() != null) { sid.setUpdatedByUrl(UriComponentsBuilder.fromUri(baseUri).path("/rest/user/{id}") .buildAndExpand(sid.getUpdatedById()).toUriString()); } } if (sampleDto.getSampleTissue() != null) { SampleTissueController.writeUrls(sampleDto.getSampleTissue(), uriBuilder); } if (sampleDto.getSampleAnalyte() != null) { SampleAnalyteController.writeUrls(sampleDto.getSampleAnalyte(), uriBuilder); } return sampleDto; }</code><technical_language>Check sampleDto.getSampleAdditionalInfo() null well</technical_language>

Target:
private static SampleDto writeUrls(SampleDto sampleDto, UriComponentsBuilder uriBuilder) { URI baseUri = uriBuilder.build().toUri(); sampleDto.setUrl(UriComponentsBuilder.fromUri(baseUri).path("/rest/tree/sample/{id}").buildAndExpand(sampleDto.getId()).toUriString()); if (sampleDto.getSampleAdditionalInfo() != null && sampleDto.getSampleAdditionalInfo().getParentId() != null) { sampleDto.getSampleAdditionalInfo().setParentUrl( UriComponentsBuilder.fromUri(baseUri).path("/rest/tree/sample/{id}").buildAndExpand(sampleDto.getSampleAdditionalInfo().getParentId()).toUriString()); } if (sampleDto.getRootSampleClassId() != null) { sampleDto.setRootSampleClassUrl(UriComponentsBuilder.fromUri(baseUri).path("/rest/sampleclass/{id}") .buildAndExpand(sampleDto.getRootSampleClassId()).toUriString()); } if (sampleDto.getSampleAdditionalInfo() != null) { SampleAdditionalInfoController.writeUrls(sampleDto.getSampleAdditionalInfo(), uriBuilder); } if (sampleDto.getSampleIdentity() != null) { SampleIdentityDto sid = sampleDto.getSampleIdentity(); sid.setSampleUrl(UriComponentsBuilder.fromUri(baseUri).path("/rest/tree/sample/{id}") .buildAndExpand(sampleDto.getId()).toUriString()); if (sid.getCreatedById() != null) { sid.setCreatedByUrl(UriComponentsBuilder.fromUri(baseUri).path("/rest/user/{id}") .buildAndExpand(sid.getCreatedById()).toUriString()); } if (sid.getUpdatedById() != null) { sid.setUpdatedByUrl(UriComponentsBuilder.fromUri(baseUri).path("/rest/user/{id}") .buildAndExpand(sid.getUpdatedById()).toUriString()); } } if (sampleDto.getSampleTissue() != null) { SampleTissueController.writeUrls(sampleDto.getSampleTissue(), uriBuilder); } if (sampleDto.getSampleAnalyte() != null) { SampleAnalyteController.writeUrls(sampleDto.getSampleAnalyte(), uriBuilder); } return sampleDto; }