问题
When I try to create a RemoteWebDriver in 3.11, I see this error below. This worked fine up through 3.10. I've reverted to 3.10 for now.
I tried adding in the gson jar from google, but I still see same error. Anyone else see this? I'm running one selenium server as hub, and then running a node against it with webdriver for ff or chrome, same issue.
com.google.gson.GsonBuilder.setLenient()Lcom/google/gson/GsonBuilder;
java.lang.NoSuchMethodError: com.google.gson.GsonBuilder.setLenient()Lcom/google/gson/GsonBuilder;
at org.openqa.selenium.json.Json.(Json.java:47)
at org.openqa.selenium.logging.profiler.HttpProfilerLogEntry.constructMessage(HttpProfilerLogEntry.java:37)
at org.openqa.selenium.logging.profiler.HttpProfilerLogEntry.(HttpProfilerLogEntry.java:29)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:135)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:545)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:209)
at org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:132)
at oracle.ojet.automation.test.selenium.WebDriverManager._buildRemoteWebDriver(WebDriverManager.java:573)
回答1:
This error message...
java.lang.NoSuchMethodError: com.google.gson.GsonBuilder.setLenient()Lcom/google/gson/GsonBuilder;
...implies that the JVM was unable to find the method setLenient()Lcom/google/gson/GsonBuilder.
Reason
Release Notes of Selenium v3.10.0 clearly mentions:
- Migrate Selenium Grid to reduce exporting GSON and Apache HttpClient as much to public APIs.
Further, Release Notes of Selenium v3.12.0 clearly mentions:
- Remove GSON from how we coerce JSON to Java types.
- Clean up the internals of Selenium's JSON handling, including deprecating places where GSON leaks from our APIs.
Finally, Release Notes of Selenium v3.13.0 clearly mentions:
- Introduced our own JSON parser and outputter, allowing GSON to be removed from our dependencies.
Solution
To get rid of the warning and errors upgrade to Selenium v3.14.0, where Release Notes clearly mentions:
- Completely removed the GSON dependency. We now use reflection to try and find the class.
来源：https://stackoverflow.com/questions/51819550/java-lang-nosuchmethoderror-com-google-gson-gsonbuilder-setlenientlcom-google