javadoc compilation prints out warnings on JDK8

[lukasj]

javadoc generation fails on JDK8 mainly due to improper escaping of html entities and incorrect usage of closing tags

**Javadoc tool output**...
  [javadoc] /Users/lukas/development/eclipselink/javax.persistence/src/javax/persistence/SqlResultSetMapping.java:36: error: bad use of '>'
  [javadoc]  *        "WHERE (order_quantity > 25) AND (order_item = i.id)",
  [javadoc]  ^
  [javadoc] /Users/lukas/development/eclipselink/javax.persistence/src/javax/persistence/spi/PersistenceProvider.java:81: error: reference not found
  [javadoc]      * @throws PersistenceException if insufficient or inconsistent
  [javadoc]        ^
  [javadoc] /Users/lukas/development/eclipselink/javax.persistence/src/javax/persistence/spi/PersistenceProvider.java:103: error: reference not found
  [javadoc]      * @throws PersistenceException if insufficient or inconsistent
  [javadoc]        ^
  [javadoc] /Users/lukas/development/eclipselink/javax.persistence/src/javax/persistence/spi/PersistenceProviderResolverHolder.java:41: error: unexpected end tag: </code>
  [javadoc]  * environment, the default </code>PersistenceProviderResolver is used.
  [javadoc]             ^
  [javadoc] /Users/lukas/development/eclipselink/javax.persistence/src/javax/persistence/spi/PersistenceUnitInfo.java:35: error: element not closed: code
  [javadoc]      * <code>name</code> attribute in the <code>persistence.xml<code> file.
  [javadoc]^
  [javadoc] /Users/lukas/development/eclipselink/javax.persistence/src/javax/persistence/spi/PersistenceUnitInfo.java:35: error: element not closed: code
  [javadoc]      * <code>name</code> attribute in the <code>persistence.xml<code> file.
  [javadoc]           ^
  [javadoc] 19 errors
  [javadoc] 100 warnings

[lukasj]

• Issue Imported From: https://github.com/javaee/jpa-spec/issues/94
• Original Issue Raised By:@glassfishrobot
• Original Issue Assigned To: @ldemichiel

[lukasj]

@glassfishrobot Commented Reported by @lukasj

[lukasj]

@glassfishrobot Commented @lukasj said: this is invalid, correct issue is #95

[lukasj]

@glassfishrobot Commented Issue-Links: clones JPA_SPEC-91

[lukasj]

@glassfishrobot Commented This issue was imported from java.net JIRA JPA_SPEC-94

[m-reza-rahman]

This looks like a good candidate for a community/end-user contribution. I would suggest marking it with "good first issue" and/or "help wanted". That will help facilitate recruiting people to contribute.

Reza Rahman Jakarta EE Ambassador, Author, Blogger, Speaker

Please note views expressed here are my own as an individual community member and do not reflect the views of my employer.

[gavinking]

Dupe of #95. Closing.