When Drools could support JDK 8

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lusha...@gmail.com

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Feb 25, 2015, 4:53:08 AM2/25/15
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Anyone tell me when Drools would support JDK 8?

Mario Fusco

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Feb 25, 2015, 9:48:48 AM2/25/15
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Hi,

As far as I know Drools already supports JDK 8. Which Drools version did you try? Did you find any issue?

Cheers,
Mario

On Wed, Feb 25, 2015 at 10:53 AM, <lusha...@gmail.com> wrote:
Anyone tell me when Drools would support JDK 8?

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lusha...@gmail.com

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Feb 26, 2015, 3:29:28 AM2/26/15
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We are now using Drools <drools-compiler-6.1.0.Final.jar> in JBoss 8.2.0 Final with ecj 4.3.1
All we got is 
java.lang.RuntimeException: wrong class format
    at org.drools.compiler.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:279)
    at org.drools.compiler.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:219)

在 2015年2月25日星期三 UTC+8下午10:48:48，Mario Fusco写道：
Hi,

As far as I know Drools already supports JDK 8. Which Drools version did you try? Did you find any issue?

Cheers,
Mario
On Wed, Feb 25, 2015 at 10:53 AM, <lusha...@gmail.com> wrote:
Anyone tell me when Drools would support JDK 8?

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Mario Fusco

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Feb 26, 2015, 3:32:52 AM2/26/15
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Hi,

ecj 4.3.1 is the same version already imported by drools-compiler, so that one should be fine.
Can you please send a reproducer for this problem, so I could give a look at it?

Thanks,
Mario

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Edward Cai

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Jun 24, 2016, 4:20:36 PM6/24/16
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Hi Mario,

I'm trying to upgrade Drools dependencies to run on JRE 1.8. We are using 5.4.0 Final with mvel2. Do we have to upgrade to Drools 6 to support JRE 1.8? Thank you!!

Edward


On Thursday, February 26, 2015 at 3:32:52 AM UTC-5, Mario Fusco wrote:
Hi,

ecj 4.3.1 is the same version already imported by drools-compiler, so that one should be fine.
Can you please send a reproducer for this problem, so I could give a look at it?

Thanks,
Mario
On Thu, Feb 26, 2015 at 9:29 AM, <lusha...@gmail.com> wrote:
We are now using Drools <drools-compiler-6.1.0.Final.jar> in JBoss 8.2.0 Final with ecj 4.3.1
All we got is 
java.lang.RuntimeException: wrong class format
    at org.drools.compiler.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:279)
    at org.drools.compiler.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:219)

在 2015年2月25日星期三 UTC+8下午10:48:48，Mario Fusco写道：
Hi,

As far as I know Drools already supports JDK 8. Which Drools version did you try? Did you find any issue?

Cheers,
Mario
On Wed, Feb 25, 2015 at 10:53 AM, <lusha...@gmail.com> wrote:
Anyone tell me when Drools would support JDK 8?

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Edward Cai

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Jun 24, 2016, 4:26:35 PM6/24/16
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I guess I want to find out first... if our current 5.4.0 FINAL version supports JRE 1.8? Our dependencies setting is as follows:

<!-- Drools dependencies -->
            <dependency>
                <groupId>org.drools</groupId>
                <artifactId>knowledge-api</artifactId>
                <version>5.4.0.Final</version>
            </dependency>
            <dependency>
                <groupId>org.drools</groupId>
                <artifactId>knowledge-internal-api</artifactId>
                <version>5.4.0.Final</version>
            </dependency>
            <dependency>
                <groupId>org.drools</groupId>
                <artifactId>drools-core</artifactId>
                <version>5.4.0.Final</version>
            </dependency>
            <dependency>
                <groupId>org.drools</groupId>
                <artifactId>drools-compiler</artifactId>
                <version>5.4.0.Final</version>
            </dependency>
            <dependency>
                <groupId>org.drools</groupId>
                <artifactId>drools-spring</artifactId>
                <version>5.4.0.Final</version>
            </dependency>
            <dependency>
                <groupId>org.mvel</groupId>
                <artifactId>mvel2</artifactId>
                <version>2.2.2.FINAL</version>
            </dependency>
            <dependency>
                <groupId>org.antlr</groupId>
                <artifactId>antlr-runtime</artifactId>
                <version>3.4</version>
            </dependency>

Mario Fusco

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Jun 24, 2016, 5:47:09 PM6/24/16
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Sorry to let you notice this, but Drools 5.4 has been released 5 years ago. Do you really expect Java 8 support (or any other kind of support from the Drools team) on that release?

Mario

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Edward Cai

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Jun 24, 2016, 5:50:51 PM6/24/16
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Generally speaking not, but I read rumors here about how people run JRE 1.8 on Drools 5.6... so I think 5.4 might be possible. I guess 6.2.0 FINAL would probably support JRE 1.8...

Edward
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