https://bugs.openjdk.java.net/browse/JDK-8059455 http://cr.openjdk.java.net/~vlivanov/8059455/webrev.00/
LambdaForm.compileToBytecode() does unnecessary work (constructs invokerType & check an assertion) before ensuring that LambdaForm hasn't been already compiled. It happens very often for cached LambdaForms.
The fix is to do the check first. Testing: failed VM tests (timeouts) Best regards, Vladimir Ivanov
