Should use getDeclaredMethods instead of getMethods

[kaibocai]

Investigative information

Please provide the following:

• Timestamp:
• Function App name:
• Function name(s) (as appropriate):
• Invocation ID:
• Region:

Repro steps

Provide the steps required to reproduce the problem:

Expected behavior

Provide a description of the expected behavior.

Actual behavior

Provide a description of the actual behavior observed.

Known workarounds

Provide a description of any known workarounds.

Related information

Provide any related information

• Programming language used
• Links to source
• Bindings used

see the code here it should use getDeclaredMethods to get rid of loop unnecessary method from base class

azure-functions-java-worker/src/main/java/com/microsoft/azure/functions/worker/broker/EnhancedJavaMethodExecutorImpl.java

Line 25 in d7819f4

for (Method method : this.containingClass.getMethods()) {

azure-functions-java-worker/src/main/java/com/microsoft/azure/functions/worker/broker/JavaMethodExecutorImpl.java

Line 26 in d7819f4

for (Method method : this.containingClass.getMethods()) {

Also if only compare method name then we cannot do method reload, we should also compare method signature.