Minor This line https://github.com/nuxeo/nuxeo/blob/10.10/nuxeo-core/nuxeo-core-convert/src/main/java/org/nuxeo/ecm/core/convert/service/MimeTypeTranslationHelper.java#L162 could cause this NPE
ERROR [http-nio-0.0.0.0-8080-exec-10] [org.nuxeo.ecm.webengine.app.WebEngineExceptionMapper] java.lang.NullPointerException
java.lang.NullPointerException: null
at org.nuxeo.ecm.core.convert.service.MimeTypeTranslationHelper.lambda$getConverterNames$2(MimeTypeTranslationHelper.java:162) ~[nuxeo-core-convert-10.10-HF10.jar:?]
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:174) ~[?:1.8.0_252]
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382) ~[?:1.8.0_252]
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) ~[?:1.8.0_252]
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[?:1.8.0_252]
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[?:1.8.0_252]
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_252]
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:566) ~[?:1.8.0_252]
at org.nuxeo.ecm.core.convert.service.MimeTypeTranslationHelper.getConverterNames(MimeTypeTranslationHelper.java:164) ~[nuxeo-core-convert-10.10-HF10.jar:?]
at org.nuxeo.ecm.core.convert.service.MimeTypeTranslationHelper.getConverterName(MimeTypeTranslationHelper.java:93) ~[nuxeo-core-convert-10.10-HF10.jar:?]
at org.nuxeo.ecm.core.convert.service.ConversionServiceImpl.getConverterName(ConversionServiceImpl.java:430) ~[nuxeo-core-convert-10.10-HF10.jar:?]
at org.nuxeo.ecm.core.convert.api.ConversionService.getConverterName(ConversionService.java:47) ~[nuxeo-core-convert-api-10.10-HF03.jar:?]
at org.nuxeo.ecm.platform.preview.adapter.base.ConverterBasedHtmlPreviewAdapter.getPreviewBlobs(ConverterBasedHtmlPreviewAdapter.java:163) ~[nuxeo-preview-core-10.10-HF16.jar:?]
at org.nuxeo.ecm.platform.preview.adapter.base.ConverterBasedHtmlPreviewAdapter.getPreviewBlobs(ConverterBasedHtmlPreviewAdapter.java:124) ~[nuxeo-preview-core-10.10-HF16.jar:?]
at org.nuxeo.ecm.platform.preview.adapter.base.AbstractHtmlPreviewAdapter.getFilePreviewBlobs(AbstractHtmlPreviewAdapter.java:121) ~[nuxeo-preview-core-10.10-HF16.jar:?]
at org.nuxeo.ecm.restapi.server.jaxrs.adapters.PreviewAdapter.getPreviewBlobs(PreviewAdapter.java:175) ~[nuxeo-rest-api-server-10.10-HF27.jar:?]
at org.nuxeo.ecm.restapi.server.jaxrs.adapters.PreviewAdapter.preview(PreviewAdapter.java:89) ~[nuxeo-rest-api-server-10.10-HF27.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_252]
