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https://issues.apache.org/jira/browse/JCI-53?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12529601
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Mark Proctor commented on JCI-53:
---------------------------------
the current JCI implementation is not correctly handling all problems, for
instance ParseExceptions are being thrown up and not placed into the problems
array. I've since added this to the compiler.compile method, but I can't help
feeling this should be handled elsewhere. Am I correct in assuming that
IOException and CompileException are correctly handled, what about
ScanException, is that thrown too without being added to the problems array.
This is what I've added to JaninoJavaCompiler for now.
try {
compiler.compile(resources);
} catch ( ScanException e ) {
problems.add(new JaninoCompilationProblem(e)); // is this already handled?
} catch ( ParseException e ) {
problems.add(new JaninoCompilationProblem(e)); // we know this isn't
handled
} catch ( IOException e ) {
// I'm hoping the existing compiler problems handler catches these
} catch ( CompileException e ) {
// I'm hoping the existing compiler problems handler catches these
}
> Stack overflow on cross imports in commons-jci-janino
> -----------------------------------------------------
>
> Key: JCI-53
> URL: https://issues.apache.org/jira/browse/JCI-53
> Project: Commons JCI
> Issue Type: Bug
> Components: compiler janino
> Affects Versions: 1.1
> Reporter: Edson Tirelli
> Assignee: Torsten Curdt
> Priority: Blocker
> Fix For: 1.1RC1
>
>
> A stack overflow occurs when trying to compile classes with cross references
> using commons-jci-janino, because an infinite recursion. The simple presence
> of cross reference import is enough to cause the problem.
> Example: the following classes will recreate the problem:
> package test;
> import static test.Func2.func2;
> public class Func1 {
> public static boolean func1() throws Exception {
> return true;
> }
> }
> package test;
> import static test.Func1.func1;
> public class Func2 {
> public static boolean func2() throws Exception {
> return true;
> }
> }
> The exception stack is:
> java.lang.StackOverflowError
> at org.codehaus.janino.Parser.parseAndExpression(Parser.java)
> at org.codehaus.janino.Parser.parseExclusiveOrExpression(Parser.java)
> at org.codehaus.janino.Parser.parseInclusiveOrExpression(Parser.java)
> at org.codehaus.janino.Parser.parseConditionalAndExpression(Parser.java)
> at org.codehaus.janino.Parser.parseConditionalOrExpression(Parser.java)
> at org.codehaus.janino.Parser.parseConditionalExpression(Parser.java)
> at org.codehaus.janino.Parser.parseAssignmentExpression(Parser.java)
> at org.codehaus.janino.Parser.parseExpression(Parser.java)
> at org.codehaus.janino.Parser.parseReturnStatement(Parser.java)
> at org.codehaus.janino.Parser.parseStatement(Parser.java)
> at org.codehaus.janino.Parser.parseBlockStatement(Parser.java)
> at org.codehaus.janino.Parser.parseBlockStatements(Parser.java)
> at org.codehaus.janino.Parser.parseBlock(Parser.java)
> at org.codehaus.janino.Parser.parseMethodBody(Parser.java)
> at org.codehaus.janino.Parser.parseMethodDeclarationRest(Parser.java)
> at org.codehaus.janino.Parser.parseClassBodyDeclaration(Parser.java)
> at org.codehaus.janino.Parser.parseClassBody(Parser.java)
> at org.codehaus.janino.Parser.parseClassDeclarationRest(Parser.java)
> at
> org.codehaus.janino.Parser.parsePackageMemberTypeDeclaration(Parser.java)
> at org.codehaus.janino.Parser.parseCompilationUnit(Parser.java)
> at
> org.drools.commons.jci.compilers.JaninoJavaCompiler$CompilingIClassLoader.findIClass(JaninoJavaCompiler.java:90)
> at org.codehaus.janino.IClassLoader.loadIClass(IClassLoader.java)
> at
> org.codehaus.janino.UnitCompiler.loadFullyQualifiedClass(UnitCompiler.java)
> at org.codehaus.janino.UnitCompiler.import2(UnitCompiler.java)
> at org.codehaus.janino.UnitCompiler.access$2(UnitCompiler.java)
> at
> org.codehaus.janino.UnitCompiler$1.visitSingleStaticImportDeclaration(UnitCompiler.java)
> at
> org.codehaus.janino.Java$CompilationUnit$SingleStaticImportDeclaration.accept(Java.java)
> at org.codehaus.janino.UnitCompiler.<init>(UnitCompiler.java)
> at
> org.drools.commons.jci.compilers.JaninoJavaCompiler$CompilingIClassLoader.findIClass(JaninoJavaCompiler.java:91)
> at org.codehaus.janino.IClassLoader.loadIClass(IClassLoader.java)
> at
> org.codehaus.janino.UnitCompiler.loadFullyQualifiedClass(UnitCompiler.java)
> at org.codehaus.janino.UnitCompiler.import2(UnitCompiler.java)
> at org.codehaus.janino.UnitCompiler.access$2(UnitCompiler.java)
> at
> org.codehaus.janino.UnitCompiler$1.visitSingleStaticImportDeclaration(UnitCompiler.java)
> at
> org.codehaus.janino.Java$CompilationUnit$SingleStaticImportDeclaration.accept(Java.java)
> at org.codehaus.janino.UnitCompiler.<init>(UnitCompiler.java)
> at
> org.drools.commons.jci.compilers.JaninoJavaCompiler$CompilingIClassLoader.findIClass(JaninoJavaCompiler.java:91)
> at org.codehaus.janino.IClassLoader.loadIClass(IClassLoader.java)
> at
> org.codehaus.janino.UnitCompiler.loadFullyQualifiedClass(UnitCompiler.java)
> at org.codehaus.janino.UnitCompiler.import2(UnitCompiler.java)
> at org.codehaus.janino.UnitCompiler.access$2(UnitCompiler.java)
> at
> org.codehaus.janino.UnitCompiler$1.visitSingleStaticImportDeclaration(UnitCompiler.java)
> at
> org.codehaus.janino.Java$CompilationUnit$SingleStaticImportDeclaration.accept(Java.java)
> at org.codehaus.janino.UnitCompiler.<init>(UnitCompiler.java)
> at
> org.drools.commons.jci.compilers.JaninoJavaCompiler$CompilingIClassLoader.findIClass(JaninoJavaCompiler.java:91)
> at org.codehaus.janino.IClassLoader.loadIClass(IClassLoader.java)
> at
> org.codehaus.janino.UnitCompiler.loadFullyQualifiedClass(UnitCompiler.java)
> (... and the loop continues ... )
> Please note that the problem does not occur when using commons-jci-eclipse or
> when using JANINO from command line:
> [EMAIL PROTECTED] test]$ ../janino-2.5.9/bin/janinoc test/*.java
> [EMAIL PROTECTED] test]$
> This problem is affecting JANINO support in the Drools project as described
> in ticket:
> http://jira.jboss.com/jira/browse/JBRULES-1013
> Thanks,
> Edson
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