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I am getting an ArrayIndexOutOfBoundsException on service start up (Bean creation) when i use Java 8 features.
Java 8 has been set up and has been working. The code compiles correctly. On service start, the service fails to listen to port as the beans don't get created. When i change the code (remove java 8 constructs) the service starts and everything works fine.
This is the code i am using (the working code for which the service starts):
for (Item itemObject : response) { if (itemObject.hasId()) { idList.add(String.valueOf(itemObject.Id()); } } Same code using Java 8 constructs:
response.parallelStream() .filter(itemObject -> itemObject.hasId()) .map(itemObject -> itemObject.getId()) .forEach(id -> idList.add(id)); The bean for the class containing this piece of code is created using component scan.
The following is the exception message when the second code block is used in place of the first one:
Exiting with throwable: java.lang.IllegalArgumentException: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: URL [jar:file:/workspace/.../GetContainerIdForFcSkuAdapter.class]; nested exception is java.lang.ArrayIndexOutOfBoundsException: 51880 java.lang.IllegalArgumentException: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: URL [jar:file:/workspace....Some.class]; nested exception is java.lang.ArrayIndexOutOfBoundsException: 51880 What does not make sense to me is, why is the code inside a function (which is not the constructor of the bean class) being covered while creating the bean. I ask this, because the exception is not there when i use the normal for loop instead of the parallel stream. Shouldn't an ArrayOutOfBoundsException arise when the function is called and this code is actually used.
How do i fix this?
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Understanding ArrayIndexOutOfBoundsExceptionThis error comes when you are accessing or iterating over an array directly or indirectly. Directly means you are dealing with array type e.g. String[] or main method, or an integer[] you have created in your program.
To avoid the ArrayIndexOutOfBoundsException , the following should be kept in mind: The bounds of an array should be checked before accessing its elements. An array in Java starts at index 0 and ends at index length - 1 , so accessing elements that fall outside this range will throw an ArrayIndexOutOfBoundsException .
0 Comments. When Autowiring Spring Beans, a common exception is a. BeanCreationException. . This means that Spring found a bean to create, but was unable to fulfill the dependencies needed to create this this Spring bean.
IndexOutOfBoundsException is the super class of ArrayIndexOutOfBoundsException (thrown when accessing invalid index in a array) and StringIndexOutOfBoundsException (thrown when accessing invalid index in a String).
Which version of Spring do you use? You need upgrade to Spring 4 to use Java 8 lambda expressions.
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