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Fix StringIndexOutOfBoundsException parsing JTDS JDBC URLs without a database segment #12227

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Fix StringIndexOutOfBoundsException parsing JTDS JDBC URLs without a database segment #12227

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d24ab96
Fix StringIndexOutOfBoundsException parsing JTDS URLs without a datab…
dougqh Aug 17, 2026
ee9d285
Fix spotless formatting in JDBCConnectionUrlParser
dougqh Aug 17, 2026
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3 changes: 2 additions & 1 deletion ...p/src/main/java/datadog/trace/bootstrap/instrumentation/jdbc/JDBCConnectionUrlParser.java
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Expand Up @@ -760,8 +760,9 @@ DBInfo.Builder doParse(final String jdbcUrl, final DBInfo.Builder builder) {

if (portLoc > 0) {
hostEndLoc = portLoc;
final int portEndLoc = dbLoc > 0 ? dbLoc : (paramLoc > 0 ? paramLoc : details.length());
try {
builder.port(Integer.parseInt(details.substring(portLoc + 1, dbLoc)));
builder.port(Integer.parseInt(details.substring(portLoc + 1, portEndLoc)));
} catch (final NumberFormatException ignored) {
}
} else if (dbLoc > 0) {
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3 changes: 3 additions & 0 deletions dd-java-agent/instrumentation/jdbc/src/test/groovy/JDBCConnectionUrlParserTest.groovy
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Expand Up @@ -198,6 +198,9 @@ class JDBCConnectionUrlParserTest extends InstrumentationSpecification {
"jdbc:jtds:sqlserver://dbhostname.com;user=user;password=pw" | null | "jtds" | "sqlserver" | "user" | "dbhostname.com" | 1433 | null | null
"jdbc:jtds:sqlserver://dbhostname.com" | null | "jtds" | "sqlserver" | null | "dbhostname.com" | 1433 | null | null
"jdbc:jtds:sybase://dbhostname.com" | null | "jtds" | "sybase" | null | "dbhostname.com" | 7100 | null | null
// host:port with no trailing '/db' and no ';' params (regression: StringIndexOutOfBoundsException)
"jdbc:jtds:sqlserver://dbhostname.com:1433" | null | "jtds" | "sqlserver" | null | "dbhostname.com" | 1433 | null | null
"jdbc:jtds:sqlserver://dbhostname.com:1433;user=user;password=pw" | null | "jtds" | "sqlserver" | "user" | "dbhostname.com" | 1433 | null | null

// redshift
"jdbc:redshift://redshift-cluster-1.c7arcolffyvk.us-east-2.redshift.amazonaws.com:5439/dev" | null | "redshift" | null | null | "redshift-cluster-1.c7arcolffyvk.us-east-2.redshift.amazonaws.com" | 5439 | "redshift-cluster-1" | "dev"
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