In the WB API implementation, the codeBlob2objectArray method can throw exceptions. However, in the WB_GetCodeHeapEntries and WB_GetNMethod methods the exception status is not checked after returning from codeBlob2objectArray. As both WB_GetCodeHeapEntries and WB_GetNMethod can throw exceptions on their own, the exceptions thrown by codeBlob2objectArray are possibly overwritten and stay unnoticed.