Illegal type in constant pool

[kreksbeks]

Environment: Windows 7, amd64 MVEL: 2.1.7.Final, 2.1.4.Final java version "1.8.0-ea" Java(TM) SE Runtime Environment (build 1.8.0-ea-b118) Java HotSpot(TM) 64-Bit Server VM (build 25.0-b60, mixed mode)

**** COMPILER BUG! REPORT THIS IMMEDIATELY AT http://jira.codehaus.org/browse/mvel2 Expression: (name.first in persons) Exception in thread "main" java.lang.VerifyError: (class: ASMAccessorImpl_4458843621386333353870, method: getKnownEgressType signature: ()Ljava/lang/Class;) Illegal type in constant pool at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2650) at java.lang.Class.getConstructor0(Class.java:2956) at java.lang.Class.newInstance(Class.java:403) at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer._initializeAccessor(ASMAccessorOptimizer.java:725) at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer.compileAccessor(ASMAccessorOptimizer.java:859) at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer.optimizeAccessor(ASMAccessorOptimizer.java:243) at org.mvel2.optimizers.dynamic.DynamicGetAccessor.optimize(DynamicGetAccessor.java:90) at org.mvel2.optimizers.dynamic.DynamicGetAccessor.getValue(DynamicGetAccessor.java:64) at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:108) at org.mvel2.compiler.ExecutableAccessor.getValue(ExecutableAccessor.java:38) at org.mvel2.ast.Fold.getReducedValue(Fold.java:137) at org.mvel2.MVELInterpretedRuntime.parseAndExecuteInterpreted(MVELInterpretedRuntime.java:106) at org.mvel2.MVELInterpretedRuntime.parse(MVELInterpretedRuntime.java:49) at org.mvel2.MVEL.eval(MVEL.java:165) at com.pontiki.core.datasource.MVELTestCase.testCase(MVELTestCase.java:23) at com.pontiki.core.datasource.MVELTestCase.main(MVELTestCase.java:15) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)

---

To reproduce the issue use the following test case.

import org.mvel2.MVEL;
import test.domain.Name;
import test.domain.Person;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

public class MVELTestCase {

public static void main(String[] args) {
    testCase();
}

public static void testCase() {
    Collection<Person> persons = getPersons(200);
    Map<String, Object> vars = new HashMap<>();
    vars.put("persons", persons);

    Object eval = MVEL.eval("(name.first in persons)", vars);
    System.out.println(eval);
}

private static Collection<Person> getPersons(int number) {
    Collection<Person> persons = new ArrayList<>();
    for (int i = 0; i < number; i++)
    {
        Person person2 = new Person();
        person2.setName(new Name(toLetter(i) + "name", "Last"));
        persons.add(person2);
    }
    return persons;
}

private static char toLetter(int i) {
    return (char) (i % (90 - 65 + 1)  + 65);
}
}

[asilvino]

I'm experiencing this problem too. But I'm using update from elasticsearch, in setScript(_) I'm trying to do the same thing and It's not working for some process... not all of them

[steveluo]

Any updates on this issue? We are also suffering this issue when upgrading to Java 8.

[toamitmaurya]

Hi Steveluo , Did you find any solution to this issue?

[steveluo]

@toamitmaurya No, we simply replace the MVEL with groovy.

[mkornipati]

I reproduced the same issue with Java8 and investigated little bit here and root cause seems to be here https://github.com/mikebrock/mvel/blob/master/src/main/java/org/mvel2/optimizers/impl/asm/ASMAccessorOptimizer.java#L81-L89

in case javaVersion 1.8, it is using OPCODES_VERSION = Opcodes.V1_2;

for now, I went a head and updated locally, for Java version 1.8, using OPCODES_VERSION = Opcodes.V1_7; and it works!!

[arun2arunraj]

@mkornipati : Could you please elaborate what you have done to fix the issue ? I am just confused where to change the String ( OPCODES_VERSION ).

[kobe2000]

I met the same problem, and it is blocking me. How to solve this problem without changing JDK？

[rajmalarapu]

Code within org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer should be fixed as shown in below article: http://copyrightdev.tumblr.com/post/146315831773/getting-drools-5x-to-operate-smoothly-with-java-8

Also, this code issue has been fixed in mvel2 2.2.0.Final version.

[NagarjunaReddyBadolla]

Hi, Some one can suggest the any solution for below issue. i have added janino compiler after wrong class format, again i am getting some thing like below org.drools.RuntimeDroolsException: java.lang.ClassNotFoundException: com.xxx.xxx.drools.rules.Rule_xxx_Value_Adjustment_0ConsequenceInvoker [09/24 09:50:44.847][ERROR]DroolsServlet:75 - Loading Drools Failed :org.drools.RuntimeDroolsException: java.lang.ClassNotFoundException: com.xxx.xxx.drools.rules.Rule_xxx_Value_Adjustment_0ConsequenceInvoker

[vikasbo]

@mkornipati Hello Mohan - where have you published the alternate mvel-2.1.3-Final-Patch jar? I would like to use it. Please let me know.

[dstine]

Our updated artifact is published to an internal repository.

But this is the code change:

[vikasbo]

Thanks @dstine. Actually, I could locate the patch and diff. Its here as the top commit on this branch. https://github.com/mkornipati/mvel/tree/2.1.9.Final.Patch However, in order to use it, I need either of:

1. mvel jar for 2.1.9.Final.Patch
2. Instructions to build the jar from maven project https://github.com/mkornipati/mvel/tree/2.1.9.Final.Patch

Both are elusive. When I try to build locally, I get this error:

`[INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project mvel2: Compilation failure [ERROR] ~/mvel/src/main/java/org/mvel2/util/JITClassLoader.java:[49,33] error: method defineClass in class Unsafe cannot be applied to given types; [ERROR] [ERROR] -> [Help 1] org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project mvel2: Compilati on failure ~/mvel/src/main/java/org/mvel2/util/JITClassLoader.java:[49,33] error: method defineClass in class Unsafe cannot be applied to given types;

at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:213)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:154)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:146)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:309)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:194)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:107)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:993)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:345)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:191)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)

Caused by: org.apache.maven.plugin.CompilationFailureException: Compilation failure ~/mvel/src/main/java/org/mvel2/util/JITClassLoader.java:[49,33] error: method defineClass in class Unsafe cannot be applied to given types;

at org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:656)
at org.apache.maven.plugin.CompilerMojo.execute(CompilerMojo.java:128)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
... 20 more

`

Appreciate help on either of the above 2.

[vikasbo]

I could do mvn package after downgrading current java to Java 7. Thanks.

[dstine]

Ah, okay. FWIW, we used JDK 6u33.

[vikasbo]

Hello @dstine ! Is this patch purported to fix the drools rules v5.0.1 compilation with Java 8? If that is the goal, it hasn't worked for me. Do you have any pointers for me?