Swagger-codegen: Exception caused by: java.util.regex.PatternSyntaxException: Illegal/unsupported escape sequence near index 3 v2\JavaSpring
Description
I tried to use swagger codegen maven plugin to generate the sources for an openapi 3.0 specification:
<plugin>
<groupId>io.swagger</groupId>
<artifactId>swagger-codegen-maven-plugin</artifactId>
<version>3.0.0-rc1</version>
<executions>
<execution>
<goals>
<goal>generate</goal>
</goals>
<configuration>
<inputSpec>${project.basedir}/design/openapi.json</inputSpec>
<language>spring</language>
<configOptions>
<java8>true</java8>
<library>spring-boot</library>
</configOptions>
</configuration>
</execution>
</executions>
</plugin>
But the generation of sources results in an exception:
[ERROR]
java.lang.RuntimeException: Could not generate model 'user'
at io.swagger.codegen.DefaultGenerator.generateModels(DefaultGenerator.java:409)
at io.swagger.codegen.DefaultGenerator.generate(DefaultGenerator.java:728)
at io.swagger.codegen.plugin.CodeGenMojo.execute(CodeGenMojo.java:534)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
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:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:95)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:507)
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: java.util.regex.PatternSyntaxException: Illegal/unsupported escape sequence near index 3
v2\JavaSpring
^
at java.util.regex.Pattern.error(Pattern.java:1966)
at java.util.regex.Pattern.escape(Pattern.java:2482)
at java.util.regex.Pattern.atom(Pattern.java:2209)
at java.util.regex.Pattern.sequence(Pattern.java:2141)
at java.util.regex.Pattern.expr(Pattern.java:2007)
at java.util.regex.Pattern.compile(Pattern.java:1707)
at java.util.regex.Pattern.<init>(Pattern.java:1362)
at java.util.regex.Pattern.compile(Pattern.java:1039)
at java.lang.String.replaceFirst(String.java:1939)
at io.swagger.codegen.DefaultGenerator.getHandlebars(DefaultGenerator.java:1014)
at io.swagger.codegen.DefaultGenerator.processTemplateToFile(DefaultGenerator.java:744)
at io.swagger.codegen.DefaultGenerator.generateModels(DefaultGenerator.java:396)
... 24 more
Swagger-codegen version
swagger-codegen-maven-plugin, 3.0.0-rc1
Swagger declaration file content or url
{
"openapi": "3.0.1",
"info": {
"title": "API.",
"description": "The backend API.",
"contact": {
"name": "My Team",
"url": "http://my/teamsite",
"email": "[email protected]"
},
"version": "1.0.0"
},
"servers": [
{
"url": "http://localhost:8080/api/v1",
"description": "Local system"
}
],
"paths": {
"/user": {
"get": {
"description": "Returns the current user.",
"tags": [
"User"
],
"security": [
{
"basicAuthentication": []
}
],
"responses": {
"200": {
"description": "The user information",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/user"
}
}
}
}
}
}
}
},
"components": {
"schemas": {
"user": {
"description": "An user.",
"type": "object",
"required": [
"userName"
],
"properties": {
"userName": {
"description": "The name of the user.",
"type": "string"
},
"displayName": {
"description": "An alternative name of the user to display.",
"type": "string"
}
}
}
},
"securitySchemes": {
"basicAuthentication": {
"type": "http",
"scheme": "basic"
}
}
}
}
Command line used for generation
Used within maven.
Steps to reproduce
Create a spring boot maven project and add the plugin and swagger file to generate the source.
Related issues/PRs
Issue similar to #7509 . Seems not to be closed.
Suggest a fix/enhancement
Correct the regex.
thomas-worm-datev
All 18 comments
@thomas-worm-datev , this has been fixed for 3.0.0-SNAOSHOT. So let's close this for now, but it can be reopened if you still get the error.
HugoMario
on 9 Jun 2018
I am using 3.0.0-rc1 and I am also getting the same error
[ERROR]
java.lang.RuntimeException: Could not generate model 'account'
at io.swagger.codegen.DefaultGenerator.generateModels (DefaultGenerator.java:409)
at io.swagger.codegen.DefaultGenerator.generate (DefaultGenerator.java:728)
at io.swagger.codegen.plugin.CodeGenMojo.execute (CodeGenMojo.java:534)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:208)
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:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:194)
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: java.util.regex.PatternSyntaxException: Illegal/unsupported escape sequence near index 3
v2\JavaSpring
^
at java.util.regex.Pattern.error (Pattern.java:1957)
at java.util.regex.Pattern.escape (Pattern.java:2473)
at java.util.regex.Pattern.atom (Pattern.java:2200)
at java.util.regex.Pattern.sequence (Pattern.java:2132)
at java.util.regex.Pattern.expr (Pattern.java:1998)
at java.util.regex.Pattern.compile (Pattern.java:1698)
at java.util.regex.Pattern.<init> (Pattern.java:1351)
at java.util.regex.Pattern.compile (Pattern.java:1028)
at java.lang.String.replaceFirst (String.java:2178)
at io.swagger.codegen.DefaultGenerator.getHandlebars (DefaultGenerator.java:1014)
at io.swagger.codegen.DefaultGenerator.processTemplateToFile (DefaultGenerator.java:744)
at io.swagger.codegen.DefaultGenerator.generateModels (DefaultGenerator.java:396)
at io.swagger.codegen.DefaultGenerator.generate (DefaultGenerator.java:728)
at io.swagger.codegen.plugin.CodeGenMojo.execute (CodeGenMojo.java:534)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:208)
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:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:194)
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)
<plugin>
<groupId>io.swagger</groupId>
<artifactId>swagger-codegen-maven-plugin</artifactId>
<version>3.0.0-rc1</version>
<executions>
<execution>
<goals>
<goal>generate</goal>
</goals>
<configuration>
<inputSpec>API.yaml</inputSpec>
<output>.</output>
<language>java</language>
<modelPackage>com.models</modelPackage>
<generateApis>false</generateApis>
<generateApiTests>false</generateApiTests>
<generateModelDocumentation>false</generateModelDocumentation>
<generateApiDocumentation>false</generateApiDocumentation>
<generateSupportingFiles>false</generateSupportingFiles>
<configOptions>
<sourceFolder>src/main/javaxx/</sourceFolder>
<java8>true</java8>
<library>vertx</library>
<hideGenerationTimestamp>true</hideGenerationTimestamp>
</configOptions>
</configuration>
</execution>
</executions>
</plugin>
yeikel
on 17 Jul 2018
Is there any release with this fix? @HugoMario
yeikel
on 17 Jul 2018
I got the same error today for generating the model using 3.0.0-rc1.
cstechfoodie
on 17 Aug 2018
is there a workaround for this?
lperdigaoTel
on 20 Aug 2018
This might be a Windows problem since running it on Linux resolved the problem for me
lperdigaoTel
on 20 Aug 2018
servers:
url: 'http://localhost:8080/{basePath}'
description: The server for User Preferences
variables:
basePath:
default: v2
try this with the new 3.0.0 Snapshot
cstechfoodie
on 20 Aug 2018
Hi,
" Could not find artifact io.swagger:swagger-codegen-maven-plugin:jar:3.0.0-SNAPSHOT"
Does it mean one have to build it from source to use it.
Can I download it somewhere?
Thx
sepphuber
on 22 Aug 2018
lperdigaoTel
on 22 Aug 2018
Thx for the quick answer... it runs with:
<plugin>
<groupId>io.swagger</groupId>
<artifactId>swagger-codegen-maven-plugin</artifactId>
<version>3.0.0-rc1</version>
...
<dependencies>
<dependency>
<groupId>io.swagger</groupId>
<artifactId>swagger-codegen-generators</artifactId>
<version>1.0.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>io.swagger</groupId>
<artifactId>swagger-codegen-cli</artifactId>
<version>3.0.0-SNAPSHOT</version>
</dependency>
</dependencies>
</plugin>
The reference to swagger-codegen-maven-plugin 3.0.0-SNAPSHOT does not work...
sepphuber
on 22 Aug 2018
Hello, is this fixed in 3.0.0-rc1?
filbert3
on 5 Sep 2018
hey @filbert3, this is fixed in 3.0.0
HugoMario
on 12 Sep 2018
@HugoMario Thank you for the great work!
filbert3
on 14 Sep 2018
Got the same thing with 3.0.0-rc1:
<plugin>
<groupId>io.swagger</groupId>
<artifactId>swagger-codegen-maven-plugin</artifactId>
<version>3.0.0-rc1</version>
<executions>
<execution>
<id>fapi_data</id>
<goals>
<goal>generate</goal>
</goals>
<configuration>
<inputSpec>${basedir}/src/main/resources/fapi.yml</inputSpec>
<language>spring</language>
<modelPackage>com.ubs.wma.cdx.model.ui.fapi</modelPackage>
<generateApis>false</generateApis>
<generateModelTests>false</generateModelTests>
<generateSupportingFiles>false</generateSupportingFiles>
<configOptions>
<dateLibrary>java8</dateLibrary>
<serializableModel>true</serializableModel>
</configOptions>
</configuration>
</execution>
</executions>
</plugin>
Error message:
[ERROR]
java.lang.RuntimeException: Could not generate model 'Account'
at io.swagger.codegen.DefaultGenerator.generateModels(DefaultGenerator.java:409)
at io.swagger.codegen.DefaultGenerator.generate(DefaultGenerator.java:728)
at io.swagger.codegen.plugin.CodeGenMojo.execute(CodeGenMojo.java:534)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
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:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
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)
at org.codehaus.classworlds.Launcher.main(Launcher.java:47)
Caused by: java.util.regex.PatternSyntaxException: Illegal/unsupported escape sequence near index 3
v2\JavaSpring
^
at java.util.regex.Pattern.error(Pattern.java:1955)
at java.util.regex.Pattern.escape(Pattern.java:2471)
at java.util.regex.Pattern.atom(Pattern.java:2198)
at java.util.regex.Pattern.sequence(Pattern.java:2130)
at java.util.regex.Pattern.expr(Pattern.java:1996)
at java.util.regex.Pattern.compile(Pattern.java:1696)
at java.util.regex.Pattern.<init>(Pattern.java:1351)
at java.util.regex.Pattern.compile(Pattern.java:1028)
at java.lang.String.replaceFirst(String.java:2178)
at io.swagger.codegen.DefaultGenerator.getHandlebars(DefaultGenerator.java:1014)
at io.swagger.codegen.DefaultGenerator.processTemplateToFile(DefaultGenerator.java:744)
at io.swagger.codegen.DefaultGenerator.generateModels(DefaultGenerator.java:396)
... 25 more
lordnighton
on 15 Nov 2018
Same for me, this is not fix in 3.0.0.rc1
alvgarvilla
on 30 Jan 2019
Gettting Same error with 3.0.0-rc1 . It does not seems to be fixed.
[ERROR]
java.lang.RuntimeException: Could not generate model 'XXXABC'
at io.swagger.codegen.DefaultGenerator.generateModels(DefaultGenerator.java:409)
at io.swagger.codegen.DefaultGenerator.generate(DefaultGenerator.java:728)
at io.swagger.codegen.plugin.CodeGenMojo.execute(CodeGenMojo.java:534)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
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:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
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: java.util.regex.PatternSyntaxException: Illegal/unsupported escape sequence near index 3
v2Java
^
at java.util.regex.Pattern.error(Pattern.java:1957)
at java.util.regex.Pattern.escape(Pattern.java:2473)
at java.util.regex.Pattern.atom(Pattern.java:2200)
at java.util.regex.Pattern.sequence(Pattern.java:2132)
at java.util.regex.Pattern.expr(Pattern.java:1998)
at java.util.regex.Pattern.compile(Pattern.java:1698)
at java.util.regex.Pattern.
at java.util.regex.Pattern.compile(Pattern.java:1028)
at java.lang.String.replaceFirst(String.java:2178)
at io.swagger.codegen.DefaultGenerator.getHandlebars(DefaultGenerator.java:1014)
at io.swagger.codegen.DefaultGenerator.processTemplateToFile(DefaultGenerator.java:744)
at io.swagger.codegen.DefaultGenerator.generateModels(DefaultGenerator.java:396)
... 24 more
evipin
on 6 Feb 2019
I have the same problem:
java.lang.RuntimeException: Could not generate model 'adresseNaissance'
at io.swagger.codegen.DefaultGenerator.generateModels(DefaultGenerator.java:409)
at io.swagger.codegen.DefaultGenerator.generate(DefaultGenerator.java:728)
at io.swagger.codegen.plugin.CodeGenMojo.execute(CodeGenMojo.java:534)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
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:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
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: java.util.regex.PatternSyntaxException: Illegal/unsupported escape sequence near index 3
v2\Java
nabil86
on 20 Feb 2019
I was also facing this issue.
But in the maven repository website you can see the artifact was moved.
You should use this dependency:
<dependency>
<groupId>io.swagger.codegen.v3</groupId>
<artifactId>swagger-codegen-maven-plugin</artifactId>
<version>3.0.8</version>
</dependency>
Also, adjust it like that in the plugin.
After that, it compiles for me.
PetervLeeuwen
on 25 Jun 2019
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Same for me, this is not fix in 3.0.0.rc1