dragonorant opened a new issue #15034:
URL: https://github.com/apache/shardingsphere/issues/15034
```text
<dependency>
<groupId>org.apache.shardingsphere</groupId>
<artifactId>shardingsphere-jdbc-core-spring-boot-starter</artifactId>
<version>5.0.0</version>
</dependency>
```
```yml
sharding:
tables:
sanyi_account:
actual-data-nodes: master.sanyi_account_$->{0..0}
table-strategy:
standard:
sharding-column: account_id
sharding-algorithm-name: account-inline
sanyi_account_short:
actual-data-nodes: master.sanyi_account_short_$->{0..0}
table-strategy:
standard:
sharding-column: short_id
sharding-algorithm-name: short-inline
sharding-algorithms:
account-inline:
type: MOD
props:
sharding-count: 1
short-inline:
type: HASH_MOD
props:
sharding-count: 1
```
exception
```text
Caused by: java.lang.NumberFormatException: null
at java.lang.Integer.parseInt(Integer.java:542)
at java.lang.Integer.parseInt(Integer.java:615)
at
org.apache.shardingsphere.sharding.algorithm.sharding.mod.HashModShardingAlgorithm.getShardingCount(HashModShardingAlgorithm.java:52)
```
```java
HashModShardingAlgorithm.class
private int getShardingCount() {
Preconditions.checkArgument(props.containsKey(SHARDING_COUNT_KEY),
"Sharding count cannot be null.");
// Presentation of exception
return Integer.parseInt(props.getProperty(SHARDING_COUNT_KEY));
}
Properties.class
// underlying code
public String getProperty(String key) {
Object oval = super.get(key);
String sval = (oval instanceof String) ? (String)oval : null;
return ((sval == null) && (defaults != null)) ?
defaults.getProperty(key) : sval;
}
// mod no problem
ModShardingAlgorithm.class
private int getShardingCount() {
Preconditions.checkArgument(props.containsKey(SHARDING_COUNT_KEY),
"Sharding count cannot be null.");
return Integer.parseInt(props.get(SHARDING_COUNT_KEY).toString());
}
```
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