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Posted to users@tomcat.apache.org by Mohan Radhakrishnan <ra...@gmail.com> on 2018/12/08 13:39:46 UTC
--illegal-access-warn and --illegal-access-deny show different violations
Hi,
When I use --illegal-access-warn I see these.
WARNING: Illegal reflective access by
org.apache.catalina.loader.WebappClassLoaderBase
(file:/C:/Users/476458/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/8.5.34/tomcat-embed-core-8.5.34.jar)
to field java.io.ObjectStreamClass$Caches.localDescs
but when I use --illegal-access-deny I see messages originating from Spring.
java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at
org.springframework.boot.maven.AbstractRunMojo$LaunchRunner.run(AbstractRunMojo.java:558)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.IllegalStateException: Cannot load configuration
class:
org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration
I thought Tomcats's messages would stop the JVM. Why does this happen ?
Thanks,
Mohan
Re: --illegal-access-warn and --illegal-access-deny show different
violations
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Mohan,
On 12/9/18 02:55, Mohan Radhakrishnan wrote:
> Yes. --illegal-access=warn
>
> It doesn't stop the JVM. I misunderstood.
>
> But --illegal-access=deny shows the Spring violation first. While
> 'warn' showed Tomcat's first. So I assumed that 'deny' will first
> show Tomcat's messages again.
>
> Why does 'deny' not show Tomcat's messages first like 'warn' does ?
> How does 'deny' go ahead and try to load Spring when Tomcat's
> classloaders have a problem ?
I have no idea. It's possible that "denying" a call causes other
things to happen within Spring... or Tomcat. It's also possible that
Spring is catching the exceptions that "deny" might throw, and then
getting caught by something else.
- -chris
> On Sat, 8 Dec 2018 at 22:53, Christopher Schultz <
> chris@christopherschultz.net> wrote:
>
> Mohan,
>
> On 12/8/18 08:39, Mohan Radhakrishnan wrote:
>>>> Hi, When I use --illegal-access-warn I see these.
>>>>
>>>> WARNING: Illegal reflective access by
>>>> org.apache.catalina.loader.WebappClassLoaderBase
>>>> (file:/C:/Users/476458/.m2/repository/org/apache/tomcat/embed/tomca
t-e
>
>>>>
mbed-core/8.5.34/tomcat-embed-core-8.5.34.jar)
>>>>
>>>>
> to field java.io.ObjectStreamClass$Caches.localDescs
>>>>
>>>> but when I use --illegal-access-deny I see messages
>>>> originating from Spring.
>>>> java.lang.reflect.InvocationTargetException at
>>>> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Nat
ive
>>>>
>>>>
>
>>>>
Method)
>>>> at
>>>> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Nati
veM
>
>>>>
ethodAccessorImpl.java:62)
>>>>
>>>>
> at
>>>> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(
Del
>
>>>>
egatingMethodAccessorImpl.java:43)
>>>>
>>>>
> at java.base/java.lang.reflect.Method.invoke(Method.java:566)
>>>> at
>>>> org.springframework.boot.maven.AbstractRunMojo$LaunchRunner.run(Abs
tra
>
>>>>
ctRunMojo.java:558)
>>>>
>>>>
> at java.base/java.lang.Thread.run(Thread.java:834)
>>>> Caused by: java.lang.IllegalStateException: Cannot load
>>>> configuration class:
>>>> org.springframework.boot.autoconfigure.context.PropertyPlaceholderA
uto
>
>>>>
Configuration
>>>>
>>>> I thought Tomcats's messages would stop the JVM. Why does
>>>> this happen ?
>
> This will just throw an exception. It doesn't kill the JVM.
>
> Also, I think it's --illegal-access=warn, not
> --illegal-access-warn... right?
>
> -chris
>>
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>>
>>
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Re: --illegal-access-warn and --illegal-access-deny show different violations
Posted by Mohan Radhakrishnan <ra...@gmail.com>.
Yes. --illegal-access=warn
It doesn't stop the JVM. I misunderstood.
But --illegal-access=deny shows the Spring violation first. While 'warn'
showed Tomcat's first. So I assumed that 'deny' will first
show Tomcat's messages again.
Why does 'deny' not show Tomcat's messages first like 'warn' does ? How
does 'deny' go ahead and try to load Spring when Tomcat's classloaders have
a problem ?
Thanks,
Mohan
On Sat, 8 Dec 2018 at 22:53, Christopher Schultz <
chris@christopherschultz.net> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
>
> Mohan,
>
> On 12/8/18 08:39, Mohan Radhakrishnan wrote:
> > Hi, When I use --illegal-access-warn I see these.
> >
> > WARNING: Illegal reflective access by
> > org.apache.catalina.loader.WebappClassLoaderBase
> > (file:/C:/Users/476458/.m2/repository/org/apache/tomcat/embed/tomcat-e
> mbed-core/8.5.34/tomcat-embed-core-8.5.34.jar)
> >
> >
> to field java.io.ObjectStreamClass$Caches.localDescs
> >
> > but when I use --illegal-access-deny I see messages originating
> > from Spring. java.lang.reflect.InvocationTargetException at
> > java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
> >
> >
> Method)
> > at
> > java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeM
> ethodAccessorImpl.java:62)
> >
> >
> at
> > java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Del
> egatingMethodAccessorImpl.java:43)
> >
> >
> at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> > at
> > org.springframework.boot.maven.AbstractRunMojo$LaunchRunner.run(Abstra
> ctRunMojo.java:558)
> >
> >
> at java.base/java.lang.Thread.run(Thread.java:834)
> > Caused by: java.lang.IllegalStateException: Cannot load
> > configuration class:
> > org.springframework.boot.autoconfigure.context.PropertyPlaceholderAuto
> Configuration
> >
> > I thought Tomcats's messages would stop the JVM. Why does this
> > happen ?
>
> This will just throw an exception. It doesn't kill the JVM.
>
> Also, I think it's --illegal-access=warn, not --illegal-access-warn...
> right?
>
> - -chris
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> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
Re: --illegal-access-warn and --illegal-access-deny show different
violations
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Mohan,
On 12/8/18 08:39, Mohan Radhakrishnan wrote:
> Hi, When I use --illegal-access-warn I see these.
>
> WARNING: Illegal reflective access by
> org.apache.catalina.loader.WebappClassLoaderBase
> (file:/C:/Users/476458/.m2/repository/org/apache/tomcat/embed/tomcat-e
mbed-core/8.5.34/tomcat-embed-core-8.5.34.jar)
>
>
to field java.io.ObjectStreamClass$Caches.localDescs
>
> but when I use --illegal-access-deny I see messages originating
> from Spring. java.lang.reflect.InvocationTargetException at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
>
>
Method)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeM
ethodAccessorImpl.java:62)
>
>
at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Del
egatingMethodAccessorImpl.java:43)
>
>
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> at
> org.springframework.boot.maven.AbstractRunMojo$LaunchRunner.run(Abstra
ctRunMojo.java:558)
>
>
at java.base/java.lang.Thread.run(Thread.java:834)
> Caused by: java.lang.IllegalStateException: Cannot load
> configuration class:
> org.springframework.boot.autoconfigure.context.PropertyPlaceholderAuto
Configuration
>
> I thought Tomcats's messages would stop the JVM. Why does this
> happen ?
This will just throw an exception. It doesn't kill the JVM.
Also, I think it's --illegal-access=warn, not --illegal-access-warn...
right?
- -chris
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Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/
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