JDK-8187950 : javax.lang.model APIs throws CompletionFailure or a subtype of CompletionFailure.
  • Type: Bug
  • Component: core-libs
  • Sub-Component: javax.lang.model
  • Affected Version: 9
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2017-09-25
  • Updated: 2018-03-28
  • Resolved: 2018-03-09
The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

To download the current JDK release, click here.
JDK 11
11 b04Fixed
Related Reports
Blocks :  
JDK-8187422 - javadoc errors if invalid source files coexist with documented source files
CSR :  
JDK-8198611 - javax.lang.model APIs throws CompletionFailure or a subtype of CompletionFailure.
Relates :  
JDK-8190054 - Provide guidance on handling of erroneous program constructs
Relates :  
JDK-8177436 - Elements#getTypeElement ignores CompletionFailure, causing CCE in TransTypes#visitApply
Sub Tasks
JDK-8199398 :  
Release Note: Missing Types Are Consistently Modeled as ERROR Types - Closed
Description
Elements.getEnclosedElements(...) throws com.sun.tools.javac.code.ClassFinder$BadClassFile, a subtype of CompletionError, which in turn is  subtype of RuntimeException, an unchecked exception. This is a surprise to the clients of these APIs, and it is not possible to realistically handle this without resorting to accessing javac internal API.

The APIs when it encounters CompletionError or BadClassFile should return back an ErrorType or it should declare an exception in the API contract, that can be caught and handled.

This is a problem for javadoc please see JDK-8187422
Comments
An updated patch showing that ignoring the CompletionFailures can cause a (significant) difference in error reporting.
26-10-2017
Attached a prototype of the fix with testcase, however with the above fix two regression tests fail: tools/javac/classreader/T7031108.java tools/javac/processing/6430209/T6430209.java These two are expecting the failure to print out an error message.
26-09-2017