JDK-4239141 : A warning should be added to the use of toString in INetAddress
  • Type: Bug
  • Component: docs
  • Sub-Component: guides
  • Affected Version: 1.2.1,1.3.0
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 1999-05-18
  • Updated: 2000-11-18
  • Resolved: 2000-11-18
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Other
1.4.0 betaFixed
Related Reports
Duplicate :  
JDK-4379243 - InetAddress.toString() causes DNS lookup -- can result in delay
Description

Name: vi73552			Date: 05/18/99


When you create an INetAddress via getByName(), and then subsequently make a call to toString() there is normally no problems.  But if the network is down then that call to toString() will result in a major delay to the application (due to the hostName being null in that INetAddress instance).

We have spent an awful long time tracking this down and did not expect to find that the cause of our problem was the normally innocuous toString method.
(Review ID: 83189) 
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Comments
CONVERTED DATA BugTraq+ Release Management Values COMMIT TO FIX: generic FIXED IN: merlin-beta INTEGRATED IN: merlin-beta
14-06-2004
WORK AROUND Name: vi73552 Date: 05/18/99 What we have done is place the code doing the toString always in another thread, regardless of network presence. It just means a short delay in getting the info we like. ======================================================================
11-06-2004
PUBLIC COMMENTS The engineer responsible for this class has fixed the bug mentioned in this bug report. jamie.ho@Eng 2000-08-24
24-08-2000
EVALUATION We decided that it's inappropriate for toString to do a DNS lookup when hostName is null. If hostName is null, we will print an empty string for the hostname part. This is the behaviour in jdk1.0. yingxian.wang@eng 2000-08-23
23-08-2000