fix: adding reason, and removing stacktraces from errors

Signed-off-by: Simon Schrottner <[email protected]>

Author: aepfli

src/main/java/dev/openfeature/sdk/OpenFeatureClient.java

@@ -135,7 +135,7 @@ private <T> FlagEvaluationDetails<T> evaluateFlag(FlagValueType type, String key
                 OpenFeatureError error = ExceptionUtils.instantiateErrorByErrorCode(
                         details.getErrorCode(),
                         details.getErrorMessage());
-                details.setValue(defaultValue);
+                enrichDetailsWithErrorDefaults(defaultValue, details);
                 hookSupport.errorHooks(type, afterHookContext, error, mergedHooks, hints);
             } else {
                 hookSupport.afterHooks(type, afterHookContext, details, mergedHooks, hints);
@@ -150,8 +150,7 @@ private <T> FlagEvaluationDetails<T> evaluateFlag(FlagValueType type, String key
                 details.setErrorCode(ErrorCode.GENERAL);
             }
             details.setErrorMessage(e.getMessage());
-            details.setValue(defaultValue);
-            details.setReason(Reason.ERROR.toString());
+            enrichDetailsWithErrorDefaults(defaultValue, details);
             hookSupport.errorHooks(type, afterHookContext, e, mergedHooks, hints);
         } finally {
             hookSupport.afterAllHooks(type, afterHookContext, mergedHooks, hints);
@@ -160,6 +159,11 @@ private <T> FlagEvaluationDetails<T> evaluateFlag(FlagValueType type, String key
         return details;
     }
 
+    private static <T> void enrichDetailsWithErrorDefaults(T defaultValue, FlagEvaluationDetails<T> details) {
+        details.setValue(defaultValue);
+        details.setReason(Reason.ERROR.toString());
+    }
+
     /**
      * Merge invocation contexts with API, transaction and client contexts.
      * Does not merge before context.

src/main/java/dev/openfeature/sdk/exceptions/FlagNotFoundError.java

@@ -4,14 +4,11 @@
 import lombok.Getter;
 import lombok.experimental.StandardException;
 
-@SuppressWarnings("checkstyle:MissingJavadocType")
+@SuppressWarnings({"checkstyle:MissingJavadocType", "squid:S110"})
 @StandardException
-public class FlagNotFoundError extends OpenFeatureError {
+public class FlagNotFoundError extends OpenFeatureErrorWithoutStacktrace {
     private static final long serialVersionUID = 1L;
-    @Getter private final ErrorCode errorCode = ErrorCode.FLAG_NOT_FOUND;
+    @Getter
+    private final ErrorCode errorCode = ErrorCode.FLAG_NOT_FOUND;
 
-    @Override
-    public synchronized Throwable fillInStackTrace() {
-        return this;
-    }
 }

src/main/java/dev/openfeature/sdk/exceptions/OpenFeatureErrorWithoutStacktrace.java

@@ -0,0 +1,14 @@
+package dev.openfeature.sdk.exceptions;
+
+import lombok.experimental.StandardException;
+
+@SuppressWarnings("checkstyle:MissingJavadocType")
+@StandardException
+public abstract class OpenFeatureErrorWithoutStacktrace extends OpenFeatureError {
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    public synchronized Throwable fillInStackTrace() {
+        return this;
+    }
+}

src/main/java/dev/openfeature/sdk/exceptions/ProviderNotReadyError.java

@@ -4,9 +4,9 @@
 import lombok.Getter;
 import lombok.experimental.StandardException;
 
-@SuppressWarnings("checkstyle:MissingJavadocType")
+@SuppressWarnings({"checkstyle:MissingJavadocType", "squid:S110"})
 @StandardException
-public class ProviderNotReadyError extends OpenFeatureError {
+public class ProviderNotReadyError extends OpenFeatureErrorWithoutStacktrace {
     private static final long serialVersionUID = 1L;
     @Getter private final ErrorCode errorCode = ErrorCode.PROVIDER_NOT_READY;
 }

src/main/java/dev/openfeature/sdk/exceptions/TypeMismatchError.java

@@ -7,8 +7,9 @@
 /**
  * The type of the flag value does not match the expected type.
  */
+@SuppressWarnings({"checkstyle:MissingJavadocType", "squid:S110"})
 @StandardException
-public class TypeMismatchError extends OpenFeatureError {
+public class TypeMismatchError extends OpenFeatureErrorWithoutStacktrace {
     private static final long serialVersionUID = 1L;
 
     @Getter private final ErrorCode errorCode = ErrorCode.TYPE_MISMATCH;

src/test/java/dev/openfeature/sdk/FlagEvaluationSpecTest.java

@@ -113,7 +113,9 @@ public void initialize(EvaluationContext evaluationContext) throws Exception {
         OpenFeatureAPI.getInstance().setProvider(providerName, provider);
         assertThat(api.getProvider(providerName).getState()).isEqualTo(ProviderState.NOT_READY);
         Client client = OpenFeatureAPI.getInstance().getClient(providerName);
-        assertEquals(ErrorCode.PROVIDER_NOT_READY, client.getBooleanDetails("return_error_when_not_initialized", false).getErrorCode());
+        FlagEvaluationDetails<Boolean> details = client.getBooleanDetails("return_error_when_not_initialized", false);
+        assertEquals(ErrorCode.PROVIDER_NOT_READY, details.getErrorCode());
+        assertEquals(Reason.ERROR.toString(), details.getReason());
     }
 
     @Specification(number="1.1.5", text="The API MUST provide a function for retrieving the metadata field of the configured provider.")
@@ -264,6 +266,7 @@ public void initialize(EvaluationContext evaluationContext) throws Exception {
         FlagEvaluationDetails<Boolean> details = c.getBooleanDetails("key", defaultValue);
         assertEquals(ErrorCode.FLAG_NOT_FOUND, details.getErrorCode());
         assertEquals(TestConstants.BROKEN_MESSAGE, details.getErrorMessage());
+        assertEquals(Reason.ERROR.toString(), details.getReason());
         assertEquals(defaultValue, details.getValue());
     }
 
@@ -279,6 +282,7 @@ public void initialize(EvaluationContext evaluationContext) throws Exception {
         FlagEvaluationDetails<Boolean> details = c.getBooleanDetails("key", defaultValue);
         assertEquals(ErrorCode.FLAG_NOT_FOUND, details.getErrorCode());
         assertEquals(TestConstants.BROKEN_MESSAGE, details.getErrorMessage());
+        assertEquals(Reason.ERROR.toString(), details.getReason());
         assertEquals(defaultValue, details.getValue());
     }