> Please review this patch adding new lint option, **lossy-conversions**, to 
> javac to warn about type casts in compound assignments with possible lossy 
> conversions.
> 
> The new lint warning is shown if the type of the right-hand operand of a 
> compound assignment is not assignment compatible with the type of the 
> variable.
> 
> The implementation of the warning is based on similar check performed to emit 
> "possible lossy conversion" compilation error for simple assignments. 
> 
> Proposed patch also include complex matrix-style test with positive and 
> negative test cases of lossy conversions in compound assignments.
> 
> Proposed patch also disables this new lint option in all affected JDK modules 
> and libraries to allow smooth JDK build. Individual cases to address possibly 
> lossy conversions warnings in JDK are already addressed in a separate 
> umbrella issue and its sub-tasks.
> 
> Thanks for your review,
> Adam

Adam Sotona has updated the pull request incrementally with one additional 
commit since the last revision:

  enabled lossy-conversions warnings for jdk.jfr and jdk.management.jfr

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/8599/files
  - new: https://git.openjdk.java.net/jdk/pull/8599/files/a59dfa4f..32282515

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=8599&range=04
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=8599&range=03-04

  Stats: 2 lines in 2 files changed: 0 ins; 1 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8599.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8599/head:pull/8599

PR: https://git.openjdk.java.net/jdk/pull/8599

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