I have posted some syntax error under jdk 1.5,but it doesn't fix 4.5.x. JetBrains developer possibly fixed the bugs in future version. I think syntax error of jdk 1.5 should be fixed under 4.5.x .
syntax error in 4.5.2
1 "||" operation with Bollean
2 Type wildcards in Generics,and give error :"Cannot resolve symbol 'toString()'".