The document discusses Hiroki Tateno's role as a Principal Engineer at Oracle Corporation Japan working on sustaining engineering. It notes his work on JDK, JDBC 1.0, JDBC 2.0, integrating XML into JPA versions a and b, updating loggers, and details some class loading techniques used including PolicyClassLoader, SearchSequence, findLoadedClass, askParent, checkSharedLibraries, askSharedParent, map
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