Mantis - Quercus
Viewing Issue Advanced Details
ID: Category: Severity: Reproducibility: Date Submitted: Last Update:
1727 minor always 05-06-07 16:05 06-03-07 14:28
Reporter: ybakos Platform:  
Assigned To: nam OS:  
Priority: normal OS Version:  
Status: closed Product Version: 3.1.0  
Product Build: Resolution: fixed  
Projection: none      
ETA: none Fixed in Version: 3.1.1  
Summary: 0001727: Wordpress blog view fails after install
Description: An installation of Wordpress works ok, and things under wp-admin work fine too (one can create posts).

However, if you try to view the blog as a public user would, Quercus throws an arrayindexoutofboundsexception.
Steps To Reproduce:
Additional Information: 500 Servlet Exception

java.lang.ArrayIndexOutOfBoundsException: -1
    at com.caucho.quercus.lib.string.StringModule$LongPrintfSegment.apply(StringModule.java:4052)
    at com.caucho.quercus.lib.string.StringModule.sprintf(StringModule.java:1865)
    at sun.reflect.GeneratedMethodAccessor61.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at com.caucho.quercus.module.StaticFunction.invoke(StaticFunction.java:105)
    at com.caucho.quercus.env.JavaInvoker.call(JavaInvoker.java:615)
    at com.caucho.quercus.env.JavaInvoker.call(JavaInvoker.java:487)
    at com.caucho.quercus.env.JavaInvoker.call(JavaInvoker.java:473)
    at com.caucho.quercus.env.JavaInvoker.callCopy(JavaInvoker.java:482)
    at com.caucho.quercus.expr.FunctionExpr.evalImpl(FunctionExpr.java:178)
    at com.caucho.quercus.expr.FunctionExpr.evalCopy(FunctionExpr.java:149)
    at com.caucho.quercus.expr.AssignExpr.eval(AssignExpr.java:77)
    at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:63)
    at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99)
    at com.caucho.quercus.program.ForeachStatement.execute(ForeachStatement.java:82)
    at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99)
    at com.caucho.quercus.program.IfStatement.execute(IfStatement.java:75)
    at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99)
    at com.caucho.quercus.program.IfStatement.execute(IfStatement.java:75)
    at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99)
    at com.caucho.quercus.program.Function.callImpl(Function.java:316)
    at com.caucho.quercus.program.Function.call(Function.java:264)
    at com.caucho.quercus.expr.FunctionExpr.evalImpl(FunctionExpr.java:180)
    at com.caucho.quercus.expr.FunctionExpr.eval(FunctionExpr.java:125)
    at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:63)
    at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99)
    at com.caucho.quercus.program.QuercusProgram.execute(QuercusProgram.java:239)
    at com.caucho.quercus.page.InterpretedPage.execute(InterpretedPage.java:61)
    at com.caucho.quercus.env.Env.include(Env.java:3137)
    at com.caucho.quercus.expr.IncludeOnceExpr.eval(IncludeOnceExpr.java:83)
    at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:63)
    at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99)
    at com.caucho.quercus.program.Function.callImpl(Function.java:316)
    at com.caucho.quercus.program.Function.call(Function.java:264)
    at com.caucho.quercus.expr.FunctionExpr.evalImpl(FunctionExpr.java:180)
    at com.caucho.quercus.expr.FunctionExpr.eval(FunctionExpr.java:125)
    at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:63)
    at com.caucho.quercus.program.IfStatement.execute(IfStatement.java:75)
    at com.caucho.quercus.program.Function.callImpl(Function.java:316)
    at com.caucho.quercus.program.Function.call(Function.java:264)
    at com.caucho.quercus.expr.FunctionExpr.evalImpl(FunctionExpr.java:180)
    at com.caucho.quercus.expr.FunctionExpr.eval(FunctionExpr.java:125)
    at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:63)
    at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99)
    at com.caucho.quercus.program.QuercusProgram.execute(QuercusProgram.java:239)
    at com.caucho.quercus.page.InterpretedPage.execute(InterpretedPage.java:61)
    at com.caucho.quercus.env.Env.include(Env.java:3137)
    at com.caucho.quercus.expr.IncludeExpr.eval(IncludeExpr.java:86)
    at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:63)
    at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99)
    at com.caucho.quercus.program.IfStatement.execute(IfStatement.java:75)
    at com.caucho.quercus.program.IfStatement.execute(IfStatement.java:78)
    at com.caucho.quercus.program.IfStatement.execute(IfStatement.java:78)
    at com.caucho.quercus.program.IfStatement.execute(IfStatement.java:78)
    at com.caucho.quercus.program.IfStatement.execute(IfStatement.java:78)
    at com.caucho.quercus.program.IfStatement.execute(IfStatement.java:78)
    at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99)
    at com.caucho.quercus.program.IfStatement.execute(IfStatement.java:75)
    at com.caucho.quercus.program.QuercusProgram.execute(QuercusProgram.java:239)
    at com.caucho.quercus.page.InterpretedPage.execute(InterpretedPage.java:61)
    at com.caucho.quercus.env.Env.include(Env.java:3137)
    at com.caucho.quercus.expr.IncludeOnceExpr.eval(IncludeOnceExpr.java:83)
    at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:63)
    at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99)
    at com.caucho.quercus.program.IfStatement.execute(IfStatement.java:75)
    at com.caucho.quercus.program.QuercusProgram.execute(QuercusProgram.java:239)
    at com.caucho.quercus.page.InterpretedPage.execute(InterpretedPage.java:61)
    at com.caucho.quercus.env.Env.include(Env.java:3137)
    at com.caucho.quercus.expr.IncludeExpr.eval(IncludeExpr.java:86)
    at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:63)
    at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99)
    at com.caucho.quercus.program.QuercusProgram.execute(QuercusProgram.java:239)
    at com.caucho.quercus.page.InterpretedPage.execute(InterpretedPage.java:61)
    at com.caucho.quercus.page.QuercusPage.executeTop(QuercusPage.java:115)
    at com.caucho.quercus.servlet.ResinQuercusServlet.service(ResinQuercusServlet.java:122)
    at com.caucho.quercus.servlet.QuercusServlet.service(QuercusServlet.java:298)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:92)
    at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:103)
    at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:167)
    at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:226)
    at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:263)
    at com.caucho.server.port.TcpConnection.run(TcpConnection.java:477)
    at com.caucho.util.ThreadPool$Item.runTasks(ThreadPool.java:591)
    at com.caucho.util.ThreadPool$Item.run(ThreadPool.java:513)
    at java.lang.Thread.run(Thread.java:613)
Relationships
Attached Files:

Notes
(0001897)
urubatan   
05-07-07 12:42   
I found the bug that causes this, it is a bug in the StringModule, more exactly in the class com.caucho.quercus.lib.string.StringModule.PrintfSegment.

the two methods that parse formated strings had little problems, I have changed both and now I have wordpress 2.1 running OK on quercus.

I do not know how to send a patch, since we do not have CVS access to the sources, so the fix is here:
remove the break in the method getIndex, it will look like this:
static int getIndex(String format)
{
int value = 0;
for (int i = 0; i <format.length(); i++) {
char ch;
if ('0' <= (ch = format.charAt(i)) && ch <= '9')
value = 10 * value + ch - '0';
}
return value - 1;
}

the original version had a problem parsing strings in the format: " %2$d"

change the expression parsing in the getIndexFormat method, that has a problem parsing the format above too.
static String getIndexFormat(String format)
{
//int p = format.indexOf('$');
return format.replaceAll("[0-9]*\\$", "");
}


after this corrections, I found an exception while listing the history of the blog, and found it to be caused by an unimplemented cmpObject method in the class com.caucho.quercus.env.ObjectValue, I have changed the method to return "0" instead of throwing an exception (it looks like this now)
public int cmpObject(ObjectValue rValue)
{
return 0;
//throw new Run timeException("not implemented");
}


and now I have the wordpress 2.1 fully functional with Tomcat 6 and Quercus.

I hope Caucho people can use this "patch" for the next version of Quercus, and if is there a way to get access to the CVS or SVN I can send a .patch file next time.

Thanks for the great software.
(0001898)
nam   
05-07-07 15:06   
I believe these issues have been resolved in 3.1.1. Please try 3.1.1 and let me know if you're still experiencing issues with Wordpress.
(0001899)
urubatan   
05-07-07 15:51   
the not implemented issue persists in the history or posts list of wordpress, here is the stack trace:
Caused by: com.caucho.quercus.QuercusExecutionException: java.lang.RuntimeException not implemented
    at com.caucho.quercus.env.ObjectValue.cmpObject(ObjectValue.java:100)
    at com.caucho.quercus.env.Value.cmp(Value.java:254)
    at com.caucho.quercus.env.Value.lt(Value.java:280)
    at com.caucho.quercus.env.ArrayValue$ValueComparator.compare(ArrayValue.java:1373)
    at com.caucho.quercus.lib.ArrayModule$CompareNormal.compare(ArrayModule.java:3378)
    at com.caucho.quercus.lib.ArrayModule$CompareNormal.compare(ArrayModule.java:3354)
    at java.util.Arrays.mergeSort(Arrays.java:1270)
    at java.util.Arrays.sort(Arrays.java:1210)
    at com.caucho.quercus.env.ArrayValue.sort(ArrayValue.java:789)
    at com.caucho.quercus.lib.ArrayModule.sort(ArrayModule.java:1504)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.caucho.quercus.module.StaticFunction.invoke(StaticFunction.java:105)
    at com.caucho.quercus.env.JavaInvoker.call(JavaInvoker.java:614)
    at com.caucho.quercus.env.JavaInvoker.call(JavaInvoker.java:487)
    at com.caucho.quercus.env.JavaInvoker.call(JavaInvoker.java:473)
    at com.caucho.quercus.expr.FunctionExpr.evalImpl(FunctionExpr.java:180)
    at com.caucho.quercus.expr.FunctionExpr.eval(FunctionExpr.java:125)
    at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:64)
    at com.caucho.quercus.program.IfStatement.execute(IfStatement.java:75)
    at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99)
    at com.caucho.quercus.program.Function.callImpl(Function.java:316)
    at com.caucho.quercus.program.Function.callCopy(Function.java:269)
    at com.caucho.quercus.expr.FunctionExpr.evalImpl(FunctionExpr.java:178)
    at com.caucho.quercus.expr.FunctionExpr.evalCopy(FunctionExpr.java:149)
    at com.caucho.quercus.expr.AssignExpr.eval(AssignExpr.java:77)
    at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:64)
    at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99)
    at com.caucho.quercus.program.Function.callImpl(Function.java:316)
    at com.caucho.quercus.program.Function.call(Function.java:264)
    at com.caucho.quercus.expr.FunctionExpr.evalImpl(FunctionExpr.java:180)
    at com.caucho.quercus.expr.FunctionExpr.eval(FunctionExpr.java:125)
    at com.caucho.quercus.program.EchoStatement.execute(EchoStatement.java:57)
    at com.caucho.quercus.program.Function.callImpl(Function.java:316)
    at com.caucho.quercus.program.Function.call(Function.java:264)
    at com.caucho.quercus.expr.FunctionExpr.evalImpl(FunctionExpr.java:180)
    at com.caucho.quercus.expr.FunctionExpr.eval(FunctionExpr.java:125)
    at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:64)
    at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java:99)
    at com.caucho.quercus.program.WhileStatement.execute(WhileStatement.java:60)
    at .(/E:/Java/workspaces/connectait/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/blog/wp-content/themes/default/archive.php:34)


the instruction that started this was:
<?php while (have_posts()) : the_post(); ?>



I fixed this changing the line 100 of the file: com.caucho.quercus.env.ObjectValue.java from throw new RuntimeException("not implemented");
to "return 0"
and wordpress is working
(0001901)
ybakos   
05-08-07 19:05   
Hi nam, I confirm that these issues are now resolved with 3.1.1.
You are the friggin man. Thank you.
(0001914)
nam   
05-15-07 09:20   
I think objects comparison is not yet implemented. But I have analyzed the function have_posts() and it never compares objects. It is a quercus bug if it did. Therefore, I am reluctant to fix the "not implemented" exception because it would just mask the underlying problem.

urubatan, are you seeing the issue from a fresh install? What are the exact steps to reproduce it because I have been unable to reproduce this issue.