No, Drools 5.2 remains Java 1.5 compatible. The error you report has already been identified and AFAIK fixed in master.

sent on the move

On 8 May 2011 16:14, "style.x7" <style.x7@gmail.com> wrote:
> Hi all,
>
> I'm just trying out the default Drools project created with Eclipse plugin
> but already getting errors:
>
> java.lang.NoSuchMethodError:
> java.util.LinkedList.peekLast()Ljava/lang/Object;
> at
> org.drools.rule.builder.dialect.java.parser.JavaParser.addBlockDescr(JavaParser.java:249)
> at
> org.drools.rule.builder.dialect.java.parser.JavaParser.updateStatement(JavaParser.java:6934)
> at
> org.drools.rule.builder.dialect.java.parser.JavaParser.statement(JavaParser.java:6117)
> at
> org.drools.rule.builder.dialect.java.parser.JavaParser.blockStatement(JavaParser.java:5733)
> at
> org.drools.rule.builder.dialect.java.parser.JavaParser.block(JavaParser.java:5662)
> at
> org.drools.rule.builder.dialect.java.JavaExprAnalyzer.analyzeBlock(JavaExprAnalyzer.java:92)
> at
> org.drools.rule.builder.dialect.java.JavaDialect.analyzeBlock(JavaDialect.java:258)
> at
> org.drools.rule.builder.dialect.java.JavaConsequenceBuilder.build(JavaConsequenceBuilder.java:90)
> at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:98)
> at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:1546)
> at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:653)
> at
> org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:295)
> at
> org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:471)
> at
> org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28)
> ...
>
> peekLast() is a JDK 1.6 method.. so does that means from Drools 5.2x
> onwards, I have to upgrade my JDK? Which sadly I can't cause my company is
> using OSX Leopard, stuck with JDK 1.5 :(
>
>
> --
> View this message in context: http://drools.46999.n3.nabble.com/Drools-5-2-0-M2-is-not-compatible-with-JDK-1-5-tp2915491p2915491.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
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