private native Parameter[] getParameters0();
public Parameter[] getParameters() {
// TODO: This may eventually need to be guarded by security
// mechanisms similar to those in Field, Method, etc.
//
// Need to copy the cached array to prevent users from messing
// with it. Since parameters are immutable, we can
// shallow-copy.
return privateGetParameters().clone();
}
private Parameter[] synthesizeAllParams() {
final int realparams = getParameterCount();
final Parameter[] out = new Parameter[realparams];
for (int i = 0; i < realparams; i++)
// TODO: is there a way to synthetically derive the
// modifiers? Probably not in the general case, since
// we'd have no way of knowing about them, but there
// may be specific cases.
out[i] = new Parameter("arg" + i, 0, this, i);
return out;
}
private Parameter[] privateGetParameters() {
// Use tmp to avoid multiple writes to a volatile.
Parameter[] tmp = parameters;
if (tmp == null) {
// Otherwise, go to the JVM to get them
try {
tmp = getParameters0();
} catch(IllegalArgumentException e) {
// Rethrow ClassFormatErrors
throw new MalformedParametersException("Invalid constant pool index");
}
// If we get back nothing, then synthesize parameters
if (tmp == null) {
hasRealParameterData = false;
tmp = synthesizeAllParams();
} else {
hasRealParameterData = true;
verifyParameters(tmp);
}
parameters = tmp;
}
return tmp;
}
./spring-boot-project/spring-boot-docs/src/docs/asciidoc/features/testing.adoc:TIP: If you are using `@SpyBean` to spy on a bean with `@Cacheable` methods that refer to parameters by name, your application must be compiled with `-parameters`.
./spring-boot-project/spring-boot-docs/src/docs/asciidoc/actuator/endpoints.adoc:NOTE: To let the input be mapped to the operation method's parameters, Java code that implements an endpoint should be compiled with `-parameters`, and Kotlin code that implements an endpoint should be compiled with `-java-parameters`.
./spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/docs/asciidoc/reacting.adoc:10. Configures any `JavaCompile` tasks to use the `-parameters` compiler argument.
./spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/docs/asciidoc/reacting.adoc:2. Configures any `KotlinCompile` tasks to use the `-java-parameters` compiler argument.
./spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/docs/asciidoc/packaging.adoc:The `application` closure uses Ant-style patch matching for include/exclude parameters.
./spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/plugin/JavaPluginAction.java: private static final String PARAMETERS_COMPILER_ARG = "-parameters";
./spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/docs/asciidoc/using.adoc:* Compilation with `-parameters`.
./buildSrc/src/main/java/org/springframework/boot/build/JavaConventions.java: *
{@link JavaCompile} tasks are configured to use {@code -parameters}.
./buildSrc/src/main/java/org/springframework/boot/build/JavaConventions.java: if (!args.contains("-parameters")) {
./buildSrc/src/main/java/org/springframework/boot/build/JavaConventions.java: args.add("-parameters");
解决处理方法:
添加编译参数 -parameters
1) 在IDEA中,
File->Settings->Java Compiler 的 Addintional command line parameters 的下面加上-parameters参数即可
@ControllerEndpoint 和 @RestControllerEndpoint 可用于实现仅由 Spring MVC 或 Spring WebFlux 暴露的端点。使用 Spring MVC 和 Spring WebFlux 的标准注解（如 @RequestMapping 和 @GetMapping）映射方法，并将端点的 ID 用作路径的前缀。控制器端点提供了与 Spring 的 Web 框架更深层次的集成，但代价是可移植性。应尽可能首选 @Endpoint 和 @WebEndpoint 注解。
