Merge pull request #5870 from kawashima-fj/pr/javadoc-tag

java: Fix javadoc build failure with OpenJDK 11

Author: kawashima-fj

ompi/mpi/java/java/Comm.java

@@ -653,7 +653,7 @@ private native long iSend(
 
 	/**
 	 * Start a buffered mode, nonblocking send.
-	 * <p>Java binding of the MPI operation <tt>MPI_IBSEND</tt>.
+	 * <p>Java binding of the MPI operation {@code MPI_IBSEND}.
 	 * @param buf   send buffer
 	 * @param count number of items to send
 	 * @param type  datatype of each item in send buffer