JDK-4715772 : Null-check eliminator must traverse exception handlers
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 1.4.0,1.4.1
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic,solaris_8
  • CPU: generic,sparc
  • Submitted: 2002-07-16
  • Updated: 2003-02-07
  • Resolved: 2002-10-04
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Other Other Other
1.4.0_04 04Fixed 1.4.1_02Fixed 1.4.2Fixed
Related Reports
Duplicate :  
JDK-4759909 - jdk 1.4.0 client VM crashes
Description
A licensee (see comments for details) has isolated a bug in the null-check
eliminator. Since exception handlers are not traversed during the dataflow
walk, incorrect not-null results can be created for values which are assigned
null values inside of exception handlers. This may cause a VM crash if such
compiled code is ever executed and if the receiver is dereferenced at a point
where the compiler assumed the receiver was non-null. A patch has been
submitted.
Comments
CONVERTED DATA BugTraq+ Release Management Values COMMIT TO FIX: 1.4.0_04 1.4.1_02 mantis FIXED IN: 1.4.0_04 1.4.1_02 mantis INTEGRATED IN: 1.4.0_04 1.4.1_02 mantis
14-06-2004
SUGGESTED FIX See the comments and attachments for the suggested fix.
11-06-2004
EVALUATION Will fix for 1.4.2. ###@###.### 2002-07-16
16-07-2002