Sanitize pipe in var name (OpenAPITools#461)

Author: jmini

modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java

@@ -3631,6 +3631,9 @@ public String sanitizeName(String name, String removeCharRegEx) {
         // input-name => input_name
         name = name.replaceAll("-", "_");
 
+        // a|b => a_b
+        name = name.replace("|", "_");
+
         // input name and age => input_name_and_age
         name = name.replaceAll(" ", "_");
 

modules/openapi-generator/src/test/java/org/openapitools/codegen/java/AbstractJavaCodegenTest.java

@@ -73,6 +73,7 @@ public void convertVarName() throws Exception {
        Assert.assertEquals(fakeJavaCodegen.toVarName("nam$$e"), "nam$$e");
        Assert.assertEquals(fakeJavaCodegen.toVarName("user-name"), "userName");
        Assert.assertEquals(fakeJavaCodegen.toVarName("user_name"), "userName");
+       Assert.assertEquals(fakeJavaCodegen.toVarName("user|name"), "userName");
    }
 
    @Test