Re: Compilation error
I rebuilt the toolkit from source and narrowed down the issue a bit
myself, definitely seems to have something to do with inner classes
being defined inside generic classes. Unfortunately my codebase is
pretty big and we do this in multiple spots, so I'm still trying to
get around it. Will see if i can make similar changes to what Raman
has done... but I think that the code around this part of resolving
generic types could use a little more error handling to identify these
cases at least, because without compiling from source with my own
debug statements I wasn't even able to figure out which classes it
first started complaining about.
cheers
Dan
On Jan 8, 4:23 am, Raman rama...@gmail.com wrote:
Looks like I have finally solved the problem.
The case was something like this.
I am using ExtGWT which has a class TreePanel with an inner class
TreeNode, which looks like below:
public class TreePanelM extends ModelData {
-
class TreeNode {
---
private M data;
}
--
}
And, since the TreeNode class is public inside TreePanel, I was
directly using TreeNode class in my code.
I would do:
import ..TrePanel.TreeNode;
-
--
TreeNode node = ;
As you can see, TreeNode internally uses the type M, which is not
defined in the above kind of usage.
And GWT compiler gets confused when it sees this.
I solved this problem by removing the import statement as accessing
the TreeNode only in the context of the outer class(TreePanel) like
this:
TreePanelMyModeldata.TreeNode node = x;
This solved the issue.
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Re: Compilation error
As a temporary workaround since I've already burned a whole day on
this one, I just refactored several inner classes to the top level.
It just compiled.
I think my case may have actually done something similar, only where
(to use Raman's example) it actually defined TreePanel.TreeNode as
part of a method signature, without specifying any type on the
parent...
This stuff all used to compile fine, so hopefully my other projects
don't require too much refactoring, but at least there seem to be ways
to work around it. Thanks for the post, Raman.
Dan
On Jan 8, 4:23 am, Raman rama...@gmail.com wrote:
Looks like I have finally solved the problem.
The case was something like this.
I am using ExtGWT which has a class TreePanel with an inner class
TreeNode, which looks like below:
public class TreePanelM extends ModelData {
-
class TreeNode {
---
private M data;
}
--
}
And, since the TreeNode class is public inside TreePanel, I was
directly using TreeNode class in my code.
I would do:
import ..TrePanel.TreeNode;
-
--
TreeNode node = ;
As you can see, TreeNode internally uses the type M, which is not
defined in the above kind of usage.
And GWT compiler gets confused when it sees this.
I solved this problem by removing the import statement as accessing
the TreeNode only in the context of the outer class(TreePanel) like
this:
TreePanelMyModeldata.TreeNode node = x;
This solved the issue.
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Re: Compilation error
I just got the same error on one project, although I've successfully been able to compile others. No idea why yet... anyone have any ideas? On Jan 7, 12:28 am, Raman rama...@gmail.com wrote: I just upgraded to GWT 2.0. But when I compile my source code with com.google.gwt.dev.Compiler, I get a NullPointerException as below. What am I doing wrong? [ERROR] Unexpected java.lang.NullPointerException at com.google.gwt.dev.javac.asm.ResolveTypeSignature.mergeTypeParamBound s(ResolveTypeSignature.java:229) at com.google.gwt.dev.javac.asm.ResolveTypeSignature.resolveGeneric(Reso lveTypeSignature.java:300) at com.google.gwt.dev.javac.asm.ResolveTypeSignature.resolveGeneric(Reso lveTypeSignature.java:297) at com.google.gwt.dev.javac.asm.ResolveTypeSignature.resolveGenerics(Res olveTypeSignature.java:339) at com.google.gwt.dev.javac.asm.ResolveTypeSignature.visitEnd (ResolveTyp eSignature.java:155) at com.google.gwt.dev.asm.signature.SignatureReader.parseType (SignatureR eader.java:188) at com.google.gwt.dev.asm.signature.SignatureReader.accept (SignatureRead er.java:100) at com.google.gwt.dev.javac.TypeOracleMediator.resolveMethod (TypeOracleM ediator.java:972) at com.google.gwt.dev.javac.TypeOracleMediator.resolveClass (TypeOracleMe diator.java:767) at com.google.gwt.dev.javac.TypeOracleMediator.resolveClass (TypeOracleMe diator.java:792) at com.google.gwt.dev.javac.TypeOracleMediator.resolveClass (TypeOracleMe diator.java:698) at com.google.gwt.dev.javac.TypeOracleMediator.addNewUnits (TypeOracleMed iator.java:353) at com.google.gwt.dev.javac.CompilationState.assimilateUnits (Compilation State.java:135) at com.google.gwt.dev.javac.CompilationState.init (CompilationState.jav a:79) at com.google.gwt.dev.javac.CompilationStateBuilder.doBuildFrom (Compilat ionStateBuilder.java:284) at com.google.gwt.dev.javac.CompilationStateBuilder.buildFrom (Compilatio nStateBuilder.java:181) at com.google.gwt.dev.cfg.ModuleDef.getCompilationState (ModuleDef.java:2 80) at com.google.gwt.dev.Precompile.precompile(Precompile.java: 502) at com.google.gwt.dev.Precompile.precompile(Precompile.java: 414) at com.google.gwt.dev.Compiler.run(Compiler.java:201) at com.google.gwt.dev.Compiler$1.run(Compiler.java:152) at com.google.gwt.dev.CompileTaskRunner.doRun (CompileTaskRunner.java:87) at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(Compile TaskRunner.java:81) at com.google.gwt.dev.Compiler.main(Compiler.java:159) -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
