Internal error E009: Unrecoverable runtime error (Exception: java.lang.NoSuchMethodError)

Issues
1

Hi, I’m running some tests with Diffblue, but I’m having problems with a simple test and I would like to understand the reason for the error.

My test is:

public void testMyObjectGroup(MyObject myObject){
	if(myObject.getName().equalsIgnoreCase("OBJECT_NAME_1")){
		System.out.println("OBJECT_NAME_1");
		myObject.setName("OBJECT_NAME_1_TEST");
	} else if(myObject.getName().equalsIgnoreCase("OBJECT_NAME_2")){
		System.out.println("OBJECT_NAME_2");
		myObject.setName("OBJECT_NAME_2_TEST");
	} else {
		System.out.println("OBJECT_NAME_DEFAULT");
		myObject.setName("OBJECT_NAME_DEFAULT_TEST");
	}
}


public class MyObject {

	private String name;
	private String type;
	private List<MyObject> childObjects;
	
	... respective getter and setter methods ...
}

If I add the jersey-common dependency in my project, an error occurs when generating the tests and the following message is displayed: “Unrecoverable runtime error: Please contact Diffblue support. See https://diff.blue/E009”. If I remove this dependency, the tests are successfully generated.

An important detail is that this behavior only occurs because my class MyObject has a list of MyObject. If I remove this attribute, the tests are successfully generated, even with the dependency mentioned above added.

Additional Information:
OS: Windows 10 Enterprise, 64bit
Java: jdk1.8.0_291
IntelliJ IDE 2021.1 with Diffblue Community Edition plugin
JUnit 4.12

Dependency with problem:

<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-common</artifactId>
<version>2.7</version>
<scope>test</scope>
</dependency>

Error in cover-plugin.log
18:01:51.296 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] Encountered an internal error E009: Unrecoverable runtime error
18:01:51.296 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] Details: Exception: java.lang.NoSuchMethodError: org.mockito.MockSettings.stubOnly()Lorg/mockito/MockSettings;
18:01:51.296 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] Stack trace:
18:01:51.296 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] > java.lang.NoSuchMethodError: org.mockito.MockSettings.stubOnly()Lorg/mockito/MockSettings;
18:01:51.296 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.spring.isolation.framework.mocks.MockUtils.createStub(MockUtils.java:39)
18:01:51.296 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.mockito.isolation.MockitoProxyImpl.stub(MockitoProxyImpl.java:33)
18:01:51.296 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.tir.a.a.d.d(SourceFile:462)
18:01:51.296 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.tir.a.d.a(SourceFile:32570)
18:01:51.296 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.tir.c.e.c.a(SourceFile:37)
18:01:51.296 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.tir.a.e.a(SourceFile:202)
18:01:51.296 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.tir.a.e.a(SourceFile:130)
18:01:51.296 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.fuzztest.b.d.a(SourceFile:509)
18:01:51.296 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.cover.sandbox.execution.TimedCallableExecutor$CallableFuture.executeTask(SourceFile:30)
18:01:51.297 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.cover.sandbox.execution.TimedExecutor$TaskQueueRunner.run(SourceFile:83)
18:01:51.297 [INFO][analyzer-service:grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.cover.sandbox.execution.WorkerThread.run(SourceFile:198)

Error in cover-server.log
18:01:51.296 [INFO][grpc-default-executor-0][c.d.cover.c.b] Encountered an internal error E009: Unrecoverable runtime error
18:01:51.296 [INFO][grpc-default-executor-0][c.d.cover.c.b] Details: Exception: java.lang.NoSuchMethodError: org.mockito.MockSettings.stubOnly()Lorg/mockito/MockSettings;
18:01:51.296 [INFO][grpc-default-executor-0][c.d.cover.c.b] Stack trace:
18:01:51.296 [INFO][grpc-default-executor-0][c.d.cover.c.b] > java.lang.NoSuchMethodError: org.mockito.MockSettings.stubOnly()Lorg/mockito/MockSettings;
18:01:51.296 [INFO][grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.spring.isolation.framework.mocks.MockUtils.createStub(MockUtils.java:39)
18:01:51.296 [INFO][grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.mockito.isolation.MockitoProxyImpl.stub(MockitoProxyImpl.java:33)
18:01:51.296 [INFO][grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.tir.a.a.d.d(SourceFile:462)
18:01:51.296 [INFO][grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.tir.a.d.a(SourceFile:32570)
18:01:51.296 [INFO][grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.tir.c.e.c.a(SourceFile:37)
18:01:51.296 [INFO][grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.tir.a.e.a(SourceFile:202)
18:01:51.296 [INFO][grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.tir.a.e.a(SourceFile:130)
18:01:51.296 [INFO][grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.fuzztest.b.d.a(SourceFile:509)
18:01:51.296 [INFO][grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.cover.sandbox.execution.TimedCallableExecutor$CallableFuture.executeTask(SourceFile:30)
18:01:51.297 [INFO][grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.cover.sandbox.execution.TimedExecutor$TaskQueueRunner.run(SourceFile:83)
18:01:51.297 [INFO][grpc-default-executor-0][c.d.cover.c.b] > com.diffblue.cover.sandbox.execution.WorkerThread.run(SourceFile:198)

2

Hi there

Do you have Mockito in your pom.xml? It looks like we are trying to mock methods but cannot do that without mockito in the classpath.

Regards

andy

3

Yes, the mockito dependency is included in pom.xml and, apparently, Diffblue correctly loads that lib into the classpath.

    <dependency>
        <groupId>org.mockito</groupId>
        <artifactId>mockito-core</artifactId>
        <version>1.9.5</version>
        <scope>test</scope>
    </dependency>

cover-plugin.log

18:01:34.915 [INFO][pool-4-thread-68][c.d.c.analysis.b] Driver Builder configuration:
Active analysis engines: [ESSENTIAL_TESTS]
Module: ProjectTests-core
Classpath: C:\git\ProjectTests\ProjectTests-core\target\test-classes;C:\git\ProjectTests\ProjectTests-core\target\classes;C:\Users\jean.santolin.m2\repository\junit\junit\4.12\junit-4.12.jar;C:\Users\jean.santolin.m2\repository\org\mockito\mockito-core\1.9.5\mockito-core-1.9.5.jar;C:\Users\jean.santolin.m2\repository\org\hamcrest\hamcrest-core\1.1\hamcrest-core-1.1.jar;C:\Users\jean.santolin.m2\repository\org\objenesis\objenesis\1.0\objenesis-1.0.jar;C:\Users\jean.santolin.m2\repository\org\glassfish\jersey\core\jersey-common\2.7\jersey-common-2.7.jar;C:\Users\jean.santolin.m2\repository\javax\ws\rs\javax.ws.rs-api\2.0\javax.ws.rs-api-2.0.jar;C:\Users\jean.santolin.m2\repository\javax\annotation\javax.annotation-api\1.2\javax.annotation-api-1.2.jar;C:\Users\jean.santolin.m2\repository\org\glassfish\jersey\bundles\repackaged\jersey-guava\2.7\jersey-guava-2.7.jar;C:\Users\jean.santolin.m2\repository\org\glassfish\hk2\hk2-api\2.2.0\hk2-api-2.2.0.jar;C:\Users\jean.santolin.m2\repository\org\glassfish\hk2\hk2-utils\2.2.0\hk2-utils-2.2.0.jar;C:\Users\jean.santolin.m2\repository\org\glassfish\hk2\external\aopalliance-repackaged\2.2.0\aopalliance-repackaged-2.2.0.jar;C:\Users\jean.santolin.m2\repository\org\glassfish\hk2\external\javax.inject\2.2.0\javax.inject-2.2.0.jar;C:\Users\jean.santolin.m2\repository\org\glassfish\hk2\hk2-locator\2.2.0\hk2-locator-2.2.0.jar;C:\Users\jean.santolin.m2\repository\org\javassist\javassist\3.18.1-GA\javassist-3.18.1-GA.jar;C:\Users\jean.santolin.m2\repository\org\glassfish\hk2\osgi-resource-locator\1.0.1\osgi-resource-locator-1.0.1.jar
Index: C:\Users\jean.santolin.diffblue\index\ProjectTests-4fed429ffb756721f122fb58df0cc1ba363c65e456d1f7eb753bb708b063ec3d

4

Hi Jean
We put together an example that looks like your example but does not fail - does it work for you? Can you see anything about your configuration that is different that might be causing the failure?

Here is the example CE.zip (9.2 KB)

Regards

andy

5

Hi Andy_Piper,

The example you sent generated the tests successfully. The only change I made was to change the properties of pom.xml to Java 8, because I don’t have Java 11 and I use Java 8.

Comparing your project version with my project version, I found 3 differences that make the error occur.

For testing purposes only, I applied these differences to your project and the error also occurred.

1 - In pom.xml I explicitly added the mockito-core dependency.
2 - In the MyObject class I added the getters and setters methods for all the attributes of the class.
3 - I moved the class out of the package, that is, I left it directly in the main / java folder.

If I return any of these 3 items to the original value, the tests will work again.

6

Hi Jean,

Thanks for the update!

I’ve noticed that you are using Mockito 1.9.5, unfortunately we don’t support that version of Mockito yet - we require Mockito 2.x, are you able to try with a newer version of Mockito? We will support older versions of Mockito in an upcoming release.

Regards

andy

7

Thanks for your help.

I tested with Mockito version 2.28.2 and worked correctly.

8

Great! Let us know if you need any further help.

Regards

andy