Warnings in the logs about usage of deprecated apis and query syntax

2020-08-21 12:05:25,838 [qtp1112280004-88 - http://localhost:8080/xwiki/bin/view/GitHub%20Importer/] WARN  o.a.v.introspection            - Deprecated usage of method [com.xpn.xwiki.api.XWiki.search] in xwiki:GitHub Importer.WebHome@23,28 
2020-08-21 12:05:25,841 [qtp1112280004-88 - http://localhost:8080/xwiki/bin/view/GitHub%20Importer/] WARN  c.x.x.XWiki                    - Deprecated usage legacy-style HQL ordinal parameters (`?`); use JPA-style ordinal parameters (e.g., `?1`) instead. Query [select count(doc) from XWikiDocument doc where doc.space = ?] has been converted to [select count(doc) from XWikiDocument doc where doc.space = ?1] 
2020-08-21 12:10:24,945 [qtp1112280004-89 - http://localhost:8080/xwiki/bin/view/GitHub%20Importer/] WARN  o.a.v.introspection            - Deprecated usage of method [com.xpn.xwiki.api.XWiki.search] in xwiki:GitHub Importer.WebHome@23,28 
2020-08-21 12:10:24,951 [qtp1112280004-89 - http://localhost:8080/xwiki/bin/view/GitHub%20Importer/] WARN  c.x.x.XWiki                    - Deprecated usage legacy-style HQL ordinal parameters (`?`); use JPA-style ordinal parameters (e.g., `?1`) instead. Query [select count(doc) from XWikiDocument doc where doc.space = ?] has been converted to [select count(doc) from XWikiDocument doc where doc.space = ?1] 
org.xwiki.filter.FilterException: Error: An Exception was thrown.
	at org.xwiki.contrib.githubimporter.internal.input.GithubImporterInputFilterStream.readFile(GithubImporterInputFilterStream.java:193)
	at org.xwiki.contrib.githubimporter.internal.input.GithubImporterInputFilterStream.readFileType(GithubImporterInputFilterStream.java:330)
	at org.xwiki.contrib.githubimporter.internal.input.GithubImporterInputFilterStream.lambda$readSidebar$1(GithubImporterInputFilterStream.java:252)
	at java.util.Iterator.forEachRemaining(Iterator.java:116)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
	at org.xwiki.contrib.githubimporter.internal.input.GithubImporterInputFilterStream.readSidebar(GithubImporterInputFilterStream.java:231)
	at org.xwiki.contrib.githubimporter.internal.input.GithubImporterInputFilterStream.readHierarchy(GithubImporterInputFilterStream.java:217)
	at org.xwiki.contrib.githubimporter.internal.input.GithubImporterInputFilterStream.read(GithubImporterInputFilterStream.java:145)
	at org.xwiki.contrib.githubimporter.internal.input.GithubImporterInputFilterStream.read(GithubImporterInputFilterStream.java:63)
	at org.xwiki.filter.input.AbstractBeanInputFilterStream.read(AbstractBeanInputFilterStream.java:79)
	at org.xwiki.filter.internal.job.FilterStreamConverterJob.runInternal(FilterStreamConverterJob.java:97)
	at org.xwiki.job.AbstractJob.runInContext(AbstractJob.java:242)
	at org.xwiki.job.AbstractJob.run(AbstractJob.java:219)
	at org.xwiki.filter.script.internal.ScriptFilterStreamConverterJob.run(ScriptFilterStreamConverterJob.java:75)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.FileNotFoundException: File 'data/git/mixxx.wiki/mixxx_logo.svg.md' does not exist
	at org.apache.commons.io.FileUtils.openInputStream(FileUtils.java:2115)
	at org.apache.commons.io.FileUtils.readFileToString(FileUtils.java:2234)
	at org.xwiki.contrib.githubimporter.internal.input.GithubImporterInputFilterStream.readFile(GithubImporterInputFilterStream.java:181)
	... 17 more
2020-08-21 12:12:34,636 [qtp1112280004-88 - http://localhost:8080/xwiki/bin/view/GitHub%20Importer/] WARN  o.a.v.introspection            - Deprecated usage of method [com.xpn.xwiki.api.XWiki.search] in xwiki:GitHub Importer.WebHome@23,28 
2020-08-21 12:12:34,654 [qtp1112280004-88 - http://localhost:8080/xwiki/bin/view/GitHub%20Importer/] WARN  c.x.x.XWiki                    - Deprecated usage legacy-style HQL ordinal parameters (`?`); use JPA-style ordinal parameters (e.g., `?1`) instead. Query [select count(doc) from XWikiDocument doc where doc.space = ?] has been converted to [select count(doc) from XWikiDocument doc where doc.space = ?1] 
2020-08-21 12:22:09,751 [qtp1112280004-133 - http://localhost:8080/xwiki/bin/view/GitHub%20Importer/] WARN  o.a.v.introspection            - Deprecated usage of method [com.xpn.xwiki.api.XWiki.search] in xwiki:GitHub Importer.WebHome@23,28 
2020-08-21 12:22:09,753 [qtp1112280004-133 - http://localhost:8080/xwiki/bin/view/GitHub%20Importer/] WARN  c.x.x.XWiki                    - Deprecated usage legacy-style HQL ordinal parameters (`?`); use JPA-style ordinal parameters (e.g., `?1`) instead. Query [select count(doc) from XWikiDocument doc where doc.space = ?] has been converted to [select count(doc) from XWikiDocument doc where doc.space = ?1]