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Fix NullPointerException log in AppSec #9355

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Merged
jandro996 merged 1 commit into from
Aug 12, 2025
Merged

Fix NullPointerException log in AppSec #9355

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5 changes: 5 additions & 0 deletions dd-java-agent/appsec/src/main/java/com/datadog/appsec/ddwaf/WAFModule.java
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
package com.datadog.appsec.ddwaf;

import static datadog.trace.api.telemetry.LogCollector.SEND_TELEMETRY;
import static datadog.trace.util.stacktrace.StackTraceEvent.DEFAULT_LANGUAGE;
import static java.util.Collections.emptyList;
import static java.util.Collections.singletonList;
Expand Down Expand Up @@ -557,6 +558,10 @@ private Waf.ResultWithData runWafTransient(
}

private Collection<AppSecEvent> buildEvents(Waf.ResultWithData actionWithData) {
if (actionWithData.data == null) {
log.debug(SEND_TELEMETRY, "WAF result data is null");
return Collections.emptyList();
}
Collection<WAFResultData> listResults;
try {
listResults = RES_JSON_ADAPTER.fromJson(actionWithData.data);
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13 changes: 13 additions & 0 deletions dd-java-agent/appsec/src/test/groovy/com/datadog/appsec/ddwaf/WAFModuleSpecification.groovy
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Original file line number Diff line number Diff line change
Expand Up @@ -1682,6 +1682,19 @@ class WAFModuleSpecification extends DDSpecification {
internal == libddwaf
}

void 'ResultWithData - null data'() {
def waf = new WAFModule()
Waf.ResultWithData rwd = new Waf.ResultWithData(null, null, null, null)
Collection ret

when:
ret = waf.buildEvents(rwd)

then:
noExceptionThrown()
ret.isEmpty()
}

/**
* Helper to return a concrete Waf exception for each WafErrorCode
*/
Expand Down