Operation not permitted

Aspose.Email Product Family
1

Hi Team,

Recently upgraded to the 25.12 version of aspose. But I am getting the following error while loading the license. Could you please help us to fix this issue?

Caused by: com.aspose.email.system.exceptions.IOException: Cannot run program “env”: error=1, Operation not permitted
at com.aspose.email.internal.b.zv.g(SourceFile:390) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.internal.b.zv.a(SourceFile:610) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.internal.b.zv.(SourceFile:697) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.internal.n.zn.(Unknown Source) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.internal.n.zn$za.(Unknown Source) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.internal.n.zn.(Unknown Source) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.internal.ai.zdz.o_(Unknown Source) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.zaja.b(SourceFile:271) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.zaja.a(SourceFile:143) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.License.a(SourceFile:349) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.License.setLicense(SourceFile:305) ~[aspose-email-25.12.jar!/:?]
at
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
at java.base/java.lang.reflect.Method.invoke(Method.java:569) ~[?:?]

2

@Janani009

You reported an issue with loading a license in Aspose.Email for Java 25.12, encountering the error: com.aspose.email.system.exceptions.IOException: Cannot run program "env": error=1, Operation not permitted . This indicates that the library attempts to run the env command during initialization, which is being blocked by your system.

This might be related to changes in how Aspose.Email for Java 25.6+ handles license validation or internal environment checks, as seen in a similar report for version 25.6 and higher .

To address this:

  1. Confirm that your runtime environment allows executing system commands such as env.
  2. If you’re in a restricted environment (e.g., container or sandbox), try loading the license via a file path instead of a stream or resource loader — this may avoid needing to run env.
  3. Load the license directly using a file path, for example: license.setLicense("path/to/license.lic").

If the issue continues, it may point to a bug introduced in version 25.12, and further investigation would be required. Please let us know if the above steps help or if you can successfully load the license using a file path. A support engineer will follow up in this thread if needed.

3

Yes, I am running the code in the container. I loaded the file as an File Path but still encountering the issue. Below is the stacktrace

Caused by: com.aspose.email.system.exceptions.IOException: Cannot run program “env”: error=1, Operation not permitted
at com.aspose.email.internal.b.zv.g(SourceFile:390) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.internal.b.zv.a(SourceFile:610) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.internal.b.zv.(SourceFile:697) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.internal.n.zn.(Unknown Source) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.internal.n.zn$za.(Unknown Source) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.internal.n.zn.(Unknown Source) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.internal.ai.zdz.o_(Unknown Source) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.zaja.b(SourceFile:271) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.zaja.a(SourceFile:143) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.zaja.a(SourceFile:118) ~[aspose-email-25.12.jar!/:?]
at com.aspose.email.License.setLicense(SourceFile:268) ~[aspose-email-25.12.jar!/:?]
at

4

@Janani009

You reported encountering the error Cannot run program "env": error=1, Operation not permitted while loading a license in Aspose.Email for Java 25.12 inside a container, even after using a file path .

This happens because the Aspose.Email library tries to run the env system command during license initialization, which is blocked in restricted environments like containers . While loading the license via a file path is typically a workaround to avoid such system calls, it did not resolve your issue .

This problem may be related to changes in how Aspose.Email for Java 25.6+ handles license validation or internal environment checks, as seen in a similar report for version 25.6 and higher .

To proceed:

  1. Confirm whether your container allows execution of system commands like env.
  2. Try loading the license using a stream or resource loader instead of a file path, if possible.
  3. If the issue persists, it may indicate a bug introduced in version 25.12, and further investigation would be needed.

A support engineer will follow up in this thread if needed.

5

I tried using the stream as well. But still faces the issue.

6

@Janani009,
We have opened the following new investigation ticket in our internal issue-tracking system.

Issue ID(s): EMAILJAVA-35434