JDK-8162704

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JDK-8162704

Wieland, Jacob

Is anybody looking into this very weird issue: http://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8162704

bugs.java.com
Component: tools - Sub-Component: javac
BR, Jacob





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Re: JDK-8162704

Maurizio Cimadamore

This issue is resolved in JDK 9 - the only issue being that it takes more VM stack size than in the past.


I've been able to compile the attached test case in 1.5 seconds, but I have to bump up the compiler stack size as follows:


javac -J-Xss2M CompilerIssue.java


Cheers
Maurizio


On 24/11/16 12:33, Wieland, Jacob wrote:

Is anybody looking into this very weird issue: http://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8162704

bugs.java.com
Component: tools - Sub-Component: javac
BR, Jacob





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Tel No. +44 (0) 1293 767676
Fax No. +44 (0) 1293 767677

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Registered at Northwood Park, Gatwick Road, Crawley, West Sussex, RH10 9XN, United Kingdom.

Or if within the US,

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Re: JDK-8162704

Maurizio Cimadamore



On 02/02/17 11:24, Maurizio Cimadamore wrote:

This issue is resolved in JDK 9 - the only issue being that it takes more VM stack size than in the past.


I've been able to compile the attached test case in 1.5 seconds, but I have to bump up the compiler stack size as follows:


javac -J-Xss2M CompilerIssue.java

Sorry, I was trying out the wrong test case. With the correct test case JDK 9 javac finishes in 2  seconds w/o any need to increase stack size.

Maurizio


Cheers
Maurizio


On 24/11/16 12:33, Wieland, Jacob wrote:

Is anybody looking into this very weird issue: http://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8162704

bugs.java.com
Component: tools - Sub-Component: javac
BR, Jacob





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Spirent Communications plc
Northwood Park, Gatwick Road, Crawley, West Sussex, RH10 9XN, United Kingdom.
Tel No. +44 (0) 1293 767676
Fax No. +44 (0) 1293 767677

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Registered at Northwood Park, Gatwick Road, Crawley, West Sussex, RH10 9XN, United Kingdom.

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Re: JDK-8162704

Wieland, Jacob

Hi,


that is good to hear, can I ask what the cause of the problem was?


BR, 


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From: Maurizio Cimadamore <[hidden email]>
Sent: Thursday, February 2, 2017 12:41:30 PM
To: Wieland, Jacob; Oracle Java Compiler Developers
Subject: Re: JDK-8162704
 



On 02/02/17 11:24, Maurizio Cimadamore wrote:

This issue is resolved in JDK 9 - the only issue being that it takes more VM stack size than in the past.


I've been able to compile the attached test case in 1.5 seconds, but I have to bump up the compiler stack size as follows:


javac -J-Xss2M CompilerIssue.java

Sorry, I was trying out the wrong test case. With the correct test case JDK 9 javac finishes in 2  seconds w/o any need to increase stack size.

Maurizio


Cheers
Maurizio


On 24/11/16 12:33, Wieland, Jacob wrote:

Is anybody looking into this very weird issue: http://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8162704

bugs.java.com
Component: tools - Sub-Component: javac
BR, Jacob





Spirent Communications e-mail confidentiality.
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Northwood Park, Gatwick Road, Crawley, West Sussex, RH10 9XN, United Kingdom.
Tel No. +44 (0) 1293 767676
Fax No. +44 (0) 1293 767677

Registered in England Number 470893
Registered at Northwood Park, Gatwick Road, Crawley, West Sussex, RH10 9XN, United Kingdom.

Or if within the US,

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Re: JDK-8162704

Maurizio Cimadamore

I believe the cause was this:


https://bugs.openjdk.java.net/browse/JDK-8078093


That is, the speculative attribution framework introduced as part of JDK 8 to handle lambda expressions and method reference in overload resolution context caused a combinatorial explosion of type-checking calls. This has been addressed as part of JEP-215 [1].


Maurizio


[1]  - http://openjdk.java.net/jeps/215


On 02/02/17 11:45, Wieland, Jacob wrote:

Hi,


that is good to hear, can I ask what the cause of the problem was?


BR, 


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From: Maurizio Cimadamore [hidden email]
Sent: Thursday, February 2, 2017 12:41:30 PM
To: Wieland, Jacob; Oracle Java Compiler Developers
Subject: Re: JDK-8162704
 



On 02/02/17 11:24, Maurizio Cimadamore wrote:

This issue is resolved in JDK 9 - the only issue being that it takes more VM stack size than in the past.


I've been able to compile the attached test case in 1.5 seconds, but I have to bump up the compiler stack size as follows:


javac -J-Xss2M CompilerIssue.java

Sorry, I was trying out the wrong test case. With the correct test case JDK 9 javac finishes in 2  seconds w/o any need to increase stack size.

Maurizio


Cheers
Maurizio


On 24/11/16 12:33, Wieland, Jacob wrote:

Is anybody looking into this very weird issue: http://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8162704

bugs.java.com
Component: tools - Sub-Component: javac
BR, Jacob





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