Parallel Test execution
Gradle Caching
Explicitly request for latest JavaCC 7.0.10

Parallel Test execution
Gradle Caching
Explicitly request for latest JavaCC 7.0.10

Simplify the Primary Expression Production
Try to simple parse without Complex Expressions first, before parsing complex and slow (if supported by max nesting depth)
Add Test cases for issues JSQLParser#1397 and JSQLParser#1438
Update Libraries to its latest version
Remove JUnit 4 from Gradle

Let Parser timeout after 6 seconds and fail gently
Add a special test verifying the clean up after timeout

# Conflicts:
#	src/test/java/net/sf/jsqlparser/statement/select/SelectTest.java

Unused imports

# Conflicts:
#	build.gradle
#	src/test/java/net/sf/jsqlparser/statement/select/SelectTest.java

# Conflicts:
#	build.gradle
#	src/main/jjtree/net/sf/jsqlparser/parser/JSqlParserCC.jjt
#	src/test/java/net/sf/jsqlparser/statement/select/SelectTest.java

Reduce test loops to fit intothe timeout