Hi folks,
Trying out 5.3.0. I was running into this exception:
12:44:23.062 ERROR org.apache.tapestry5.ioc.Registry - Illegal field
modifiers in class lxyz/web2/components/codebook/controls/Button: 0x12
12:44:23.062 ERROR org.apache.tapestry5.ioc.Registry - Operations trace:
12:44:23.062 ERROR org.apache.tapestry5.ioc.Registry - [ 1] Constructing
instance of page class lxyz.web2.pages.errors.Error404Page
12:44:23.062 ERROR org.apache.tapestry5.ioc.Registry - [ 2] Assembling root
component for page errors/Error404Page
12:44:23.062 ERROR org.apache.tapestry5.ioc.Registry - [ 3] Assembling
component errors/Error404Page:liabase (lxyz.web2.components.desktop.LiaBase)
12:44:23.062 ERROR org.apache.tapestry5.ioc.Registry - [ 4] Assembling
component errors/Error404Page:liabase.base (lxyz.web2.components.head.BaseHead)
12:44:23.063 ERROR org.apache.tapestry5.ioc.Registry - [ 5] Creating
ComponentAssembler for lxyz.web2.components.forums.LiveLinks
12:44:23.063 ERROR org.apache.tapestry5.ioc.Registry - [ 6] Creating
instantiator for component class lxyz.web2.components.codebook.controls.Link
12:44:23.087 ERROR stryModule.RequestExceptionHandler - Processing of request
failed with uncaught exception: Illegal field modifiers in class
lxyz/web2/components/codebook/controls/Button: 0x12 [1BE517AD]
java.lang.ClassFormatError: Illegal field modifiers in class
lxyz/web2/components/codebook/controls/Button: 0x12
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.lang.ClassLoader.defineClass(ClassLoader.java:466)
at
org.apache.tapestry5.internal.plastic.PlasticClassLoader.defineClassWithBytecode(PlasticClassLoader.java:53)
at
org.apache.tapestry5.internal.plastic.PlasticClassPool.realize(PlasticClassPool.java:140)
at
org.apache.tapestry5.internal.plastic.PlasticClassPool.realizeTransformedClass(PlasticClassPool.java:122)
at
org.apache.tapestry5.internal.plastic.PlasticClassImpl.createInstantiator(PlasticClassImpl.java:1722)
at
org.apache.tapestry5.internal.plastic.PlasticClassPool.loadAndTransformClass(PlasticClassPool.java:322)
at
org.apache.tapestry5.internal.plastic.PlasticClassLoader.loadClass(PlasticClassLoader.java:38)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.lang.ClassLoader.defineClass(ClassLoader.java:466)
at
org.apache.tapestry5.internal.plastic.PlasticClassLoader.defineClassWithBytecode(PlasticClassLoader.java:53)
at
org.apache.tapestry5.internal.plastic.PlasticClassPool.realize(PlasticClassPool.java:140)
at
org.apache.tapestry5.internal.plastic.PlasticClassPool.realizeTransformedClass(PlasticClassPool.java:122)
at
org.apache.tapestry5.internal.plastic.PlasticClassImpl.createInstantiator(PlasticClassImpl.java:1722)
at
org.apache.tapestry5.internal.plastic.PlasticClassPool.loadAndTransformClass(PlasticClassPool.java:322)
at
org.apache.tapestry5.internal.plastic.PlasticClassLoader.loadClass(PlasticClassLoader.java:38)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at
org.apache.tapestry5.internal.plastic.PlasticClassPool.getClassInstantiator(PlasticClassPool.java:421)
at
org.apache.tapestry5.plastic.PlasticManager.getClassInstantiator(PlasticManager.java:189)
at
org.apache.tapestry5.internal.services.ComponentInstantiatorSourceImpl$1.invoke(ComponentInstantiatorSourceImpl.java:232)
at
org.apache.tapestry5.internal.services.ComponentInstantiatorSourceImpl$1.invoke(ComponentInstantiatorSourceImpl.java:226)
The Button class is:
public interface Button {
public ButtonType getButtonType();
public String getActionId();
public boolean isDisabled();
}
After a lot of fiddling around, someone pointed out that an interface like this
should not be in the components.xyz package to begin with. This has been like
this for 2 years and always worked with the javassist in 2.5.2 and older
tapestry5 code.
Modifier.java in the jdk defines constants that seem to indicate the offending
combination is FINAL PRIVATE (assuming the native code that is generating the
exception is using the same constants):
public static final int PRIVATE = 0x00000002;
public static final int FINAL = 0x00000010;
The only google results I found that seemed like a remotely-close match were on
this un-accepted and unanswered tapestry user list question from June:
http://tapestry.1045711.n5.nabble.com/v5-3-and-Scala-Trait-Illegal-field-modifiers-0x12-td4534667.html
Maybe Scala happens to be doing something similar.
Moving the interface to a different package fixed the issue. Just posting this
here on the chance someone else might run into this puzzling error message, to
save them the troubleshooting time.
Steve
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
