Groovy compilation issue after upgrading plugin intellij.version in build.gradle

Hi

In our plugin we have custom ModelBuilderService implementation (CubaModelBuilderImpl.groovy)

After upgrading intellij version from `IC-191.7479.19` to 'IC-192.6718.14' in plugin's build.gradle we have encountered an error in runtime. When running IDE with this updated plugin, we have Invalid pc in LineNumberTable in class file com/haulmont/studio/intellij/project/resolve/CubaModelBuilderImpl on every gradle project refresh. CubaModelBuilderImpl.class seems to be corrupted.

2019-10-21 14:59:47,388 [1995363] INFO - .project.GradleProjectResolver - Gradle project resolve error 
org.gradle.tooling.BuildException: Could not run build action using Gradle distribution 'https://services.gradle.org/distributions/gradle-4.10.3-bin.zip'.
at org.gradle.tooling.internal.consumer.ExceptionTransformer.transform(ExceptionTransformer.java:51)
...
Caused by: org.gradle.internal.exceptions.LocationAwareException: Initialization script 'C:\Users\gaslov\AppData\Local\Temp\ijinit5.gradle' line: 18
A problem occurred evaluating initialization script.
at org.gradle.initialization.DefaultExceptionAnalyser.transform(DefaultExceptionAnalyser.java:74)
at org.gradle.initialization.MultipleBuildFailuresExceptionAnalyser.transform(MultipleBuildFailuresExceptionAnalyser.java:49)
...
Caused by: org.gradle.api.GradleScriptException: A problem occurred evaluating initialization script.
at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:92)
...
Caused by: java.lang.ClassFormatError: Invalid pc in LineNumberTable in class file com/haulmont/studio/intellij/project/resolve/CubaModelBuilderImpl
at org.gradle.internal.impldep.com.google.common.collect.Iterators.addAll(Iterators.java:357)
at org.gradle.internal.impldep.com.google.common.collect.Lists.newArrayList(Lists.java:147)
at org.gradle.internal.impldep.com.google.common.collect.Lists.newArrayList(Lists.java:129)
at org.jetbrains.plugins.gradle.tooling.internal.ExtraModelBuilder.<init>(ExtraModelBuilder.java:49)
at org.jetbrains.plugins.gradle.tooling.internal.ExtraModelBuilder.<init>(ExtraModelBuilder.java:43)
at JetGradlePlugin.apply(C:\Users\gaslov\AppData\Local\Temp\ijinit5.gradle:18)...

This error caused by ProGuard plugin, that we use for code obfuscation. Without ProGuard processing everything is ok.

The interesting point, that with intellij base version 191.7479.19 we don't have such issue with ProGuard. Comparing bytecode of the classes (before they are processed by ProGuard) compiled with IC-191 and IC-192 I found that there are some LINENUMBER related differences.

The question is how the intellij version can affect Groovy class compilation this way? Any ideas are welcome, Thanks.