[jboss-jira] [JBoss JIRA] (DROOLS-362) Make Drools work with Janino 2.6.1 and javax.tools API
[
https://issues.jboss.org/browse/DROOLS-362?page=com.atlassian.jira.plugin...
]
John Engelke commented on DROOLS-362:
-------------------------------------
Here are some stack traces ...
Exception in thread "main" java.lang.ExceptionInInitializerError
...
Caused by: org.drools.RuntimeDroolsException: Unable to load dialect
'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:java:org.drools.rule.builder.dialect.java.JavaDialectConfiguration'
at
org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:321)
at
org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:307)
at
org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:192)
at
org.drools.compiler.PackageBuilderConfiguration.<init>(PackageBuilderConfiguration.java:170)
at
org.drools.builder.impl.KnowledgeBuilderFactoryServiceImpl.newKnowledgeBuilderConfiguration(KnowledgeBuilderFactoryServiceImpl.java:22)
at
org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration(KnowledgeBuilderFactory.java:74)
at com.foo.foo.rules.DroolsEngine.<clinit>(DroolsEngine.java:46)
... 7 more
Caused by: java.lang.RuntimeException: The Janino jar is not in the classpath
at
org.drools.rule.builder.dialect.java.JavaDialectConfiguration.setCompiler(JavaDialectConfiguration.java:106)
at
org.drools.rule.builder.dialect.java.JavaDialectConfiguration.init(JavaDialectConfiguration.java:61)
at
org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:317)
... 13 more
Make Drools work with Janino 2.6.1 and javax.tools API
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Key: DROOLS-362
URL: https://issues.jboss.org/browse/DROOLS-362
Project: Drools
Issue Type: Feature Request
Security Level: Public(Everyone can see)
Affects Versions: 5.5.0.Final, 6.0.0.Final
Environment: JDK 1.7.0_45
Reporter: John Engelke
Assignee: Mark Proctor
Labels: Drools, Janino
Drools can be set to leverage the Janino "super-small, super-fast Java(TM)
compiler." But it only works with version 2.5.16, not the latest version 2.6.1.
Unfortunately, Janino does not support language features above 1.4/1.5 (partial 1.5).
Version 2.6.1 includes an option to use the JDK built-in javax.tools.JavaCompiler:
"JANINO can be configured to use javax.tools.JavaCompiler (available since JDK 1.6),
i.e. JAVAC, which removes the Java 5-related limitations." [ See
http://docs.codehaus.org/display/JANINO/Home#Home-what ] Unfortunately, this is only
available when using the jars commons-compiler.jar and commons-compiler-jdk.jar, which are
themselves only available in Janino 2.6.1. [ See
http://docs.codehaus.org/display/JANINO/Advanced ]
This is a nice little blocker for those of us who don't totally agree (or simply
cannot agree) with the Eclipse license. Eclipse JDT is out. And, apparently, so is the
double-diamond operator (until this is fixed)!
Thanks.
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