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Posted to issues@maven.apache.org by "elharo (via GitHub)" <gi...@apache.org> on 2026/10/17 11:54:09 UTC
Re: [PR] Timeout Java process during JDK discovery [maven-toolchains-plugin]
elharo commented on code in PR #201:
URL: https://github.com/apache/maven-toolchains-plugin/pull/201#discussion_r4302563859
##########
src/main/java/org/apache/maven/plugins/toolchain/jdk/ToolchainDiscoverer.java:
##########
@@ -276,16 +278,23 @@ ToolchainModel doGetToolchainModel(Path jdk) {
try {
Path temp = Files.createTempFile("jdk-opts-", ".out");
try {
- new ProcessBuilder()
+ Process process = new ProcessBuilder()
.command(java.toString(), "-XshowSettings:properties", "-version")
.redirectError(temp.toFile())
- .start()
- .waitFor();
+ .start();
+ if (!process.waitFor(JAVA_PROCESS_TIMEOUT_SECONDS, TimeUnit.SECONDS)) {
+ process.destroyForcibly();
+ log.debug("JDK toolchain discovered at " + jdk + " will be ignored: java process timed out");
+ return null;
+ }
lines = Files.readAllLines(temp);
} finally {
Files.delete(temp);
}
} catch (IOException | InterruptedException e) {
+ if (e instanceof InterruptedException) {
+ Thread.currentThread().interrupt();
+ }
log.debug("JDK toolchain discovered at " + jdk + " will be ignored: error executing java: " + e);
Review Comment:
log.warn
##########
src/main/java/org/apache/maven/plugins/toolchain/jdk/ToolchainDiscoverer.java:
##########
@@ -276,16 +278,23 @@ ToolchainModel doGetToolchainModel(Path jdk) {
try {
Path temp = Files.createTempFile("jdk-opts-", ".out");
try {
- new ProcessBuilder()
+ Process process = new ProcessBuilder()
.command(java.toString(), "-XshowSettings:properties", "-version")
.redirectError(temp.toFile())
- .start()
- .waitFor();
+ .start();
+ if (!process.waitFor(JAVA_PROCESS_TIMEOUT_SECONDS, TimeUnit.SECONDS)) {
+ process.destroyForcibly();
+ log.debug("JDK toolchain discovered at " + jdk + " will be ignored: java process timed out");
Review Comment:
Now this one I do think justifies a warning.
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