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  [javadoc] Debian build on Java 9+ detected: Adding the --ignore-source-errors option
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  [javadoc] Constructing Javadoc information...
  [javadoc] Standard Doclet version 11.0.1
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  [javadoc] /build/lucene-solr-mtjbrd/lucene-solr-3.6.2+dfsg/lucene/test-framework/src/java/org/apache/lucene/analysis/MockGraphTokenFilter.java:29: warning - invalid usage of tag >
  [javadoc] /build/lucene-solr-mtjbrd/lucene-solr-3.6.2+dfsg/lucene/test-framework/src/java/org/apache/lucene/analysis/MockGraphTokenFilter.java:29: warning - invalid usage of tag >
  [javadoc] /build/lucene-solr-mtjbrd/lucene-solr-3.6.2+dfsg/lucene/test-framework/src/java/org/apache/lucene/analysis/MockGraphTokenFilter.java:29: warning - invalid usage of tag >
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  [javadoc] /build/lucene-solr-mtjbrd/lucene-solr-3.6.2+dfsg/lucene/test-framework/src/java/org/apache/lucene/analysis/MockGraphTokenFilter.java:29: warning - invalid usage of tag >
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  [javadoc] /build/lucene-solr-mtjbrd/lucene-solr-3.6.2+dfsg/lucene/test-framework/src/java/org/apache/lucene/analysis/MockGraphTokenFilter.java:29: warning - invalid usage of tag >
  [javadoc] Generating /build/lucene-solr-mtjbrd/lucene-solr-3.6.2+dfsg/lucene/build/docs/api/test-framework/help-doc.html...
  [javadoc] Note: Custom tags that were not seen:  @lucene.experimental
  [javadoc] 5 warnings
